11.4 - Florida Department of Transportation

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Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
SECTION 11.4
ADJUSTMENTS
11.4.1
PURPOSE
This procedure establishes uniform and decisive instructions for keeping accurate records of
final Asphalt Pay Items with liquid included, Optional Base Pay Items, and Composite Base.
Provided are examples on Composite Pay Factor (CPF) adjustments, Thickness and spread
rate adjustment, examples of deficient thicknesses and examples for Bituminous Adjustments
are also shown.
11.4.2 AUTHORITY
Sections 334.048(3) and 20.23(4)(a), Florida Statutes (F.S.)
Section 330, Standard Specifications for Road and Bridge Construction
11.4.3
TYPES OF ADJUSTMENTS
11.4.3.1
SPREAD RATE AND OVERALL ADJUSTMENTS
The Pay items that receive a Spread Rate Adjustment are divided into: Square yard (plan
Quantity), and Tonnage Pay Items. There will be no spread rate adjustment on cubic yard
(Asphalt Permeable Base) pay items and no spread rate adjustment on Turnout Construction
(Asphalt).
A)
Square Yard Pay Items (Plan Quantity) Adjustments
The only Plan Quantity Square Yard Asphalt item is Superpave Asphalt Base (Optional
Base- Black Base). The pay area can be adjusted up to 105% of the designed surface area.
The pay area is based on the project average spread rate divided by the specified rate.
The pay area will be adjusted based upon the following formula:
Pay Area = Surface Area (SY) X (Project Average Spread rate)
Specified Spread Rate for Total Thickness
Adjustments
11-4-1
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Example: To calculate the adjusted Pay area
First calculate the Specified Spread Rate for the project:
Use the following formula:
Specified Spread Rate = t x Gmm x 43.3 Lbs/SY
Where t= Thickness
Gmm is the maximum specific gravity
43.3 is a constant derived by the State Material’s Office
The Specified Spread Rate for the Total Thickness is based upon the plan thickness converted
to Spread Rate.
Next find the project Average Spread Rate:
The Project Average Spread Rate is calculated by totaling the arithmetic mean of the average
daily spread rate value for each layer. The daily spread rate for each individual layer shall be
established by the Engineer. The minimum layer spread rate shall be calculated by multiplying
43.3 Lbs/SY by the Maximum Specific Gravity (Gmm) of the mix (shown on the mix design) for
every inch of desired thickness, as described in the formula above.
Note: In this example only one design mix was used.
A project with Superpave Base Asphalt, Type B (12.5), Group 15 (pay Item 285-715) that is 9”
thick.
Plan Quantity Area
= 46,800 SY
Unit Price
= $50.35 per SY
Design Thickness
= 9"
The Contractor will lay the 9" in 3 courses; 3" each course
The Specified Spread Rate = Gmm X 43.3 X 9
(Gmm from Design mix = 2.540)
The Specified Spread Rate = 2.540 X 43.3 X 9 = 989.84 = 990 Lbs/SY
Target Spread Rate set at 330 Lbs/SY per Lift (990 ÷ 3= 330 based on the design mix.)
Isolate the Spread Rate for each day’s production and for each Lift (from the QC Report) and
then get the average for that day to come up with the overall Spread for each lift as shown
below:
Adjustments
11-4-2
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
►
Effective: July 1, 2002
Revised Date: September 3, 2013
LIFT 1
Day 1
341.17 Lbs/SY
Day 2
338.33 Lbs/SY
Day 3
359.60 Lbs/SY
Day 4
359.11 Lbs/SY
Total
= 1398.21 Lbs/SY
The Average mean = 1398.21 ÷ 4 = 349.55 = 350 Lbs/SY
►
LIFT 2
Day 3
343.22 Lbs/SY
Day 4
339.13 Lbs/SY
Day 5
337.45 Lbs/SY
Day 6
359.23 Lbs/SY
Total
= 1379.03 Lbs/SY
The Average Mean = 1379.03 ÷ 4 = 344.76 = 345 Lbs/SY
►
LIFT 3
Day 5
Day 6
Day 7
Day 8
Total
=
The Average Mean= 1367.99 ÷
Total Average Mean =
Total Average Mean =
352.31 Lbs/SY
332.11 Lbs/SY
321.35 Lbs/SY
362.22 Lbs/SY
1367.99 Lbs/SY
4 = 341.998= 342 Lbs/SY
350
+ 345
+ 342
1037 Lbs/SY
Reminder: Ensure that the maximum spread rate did not exceed 105%:
990 X 1.05 = 1039.5 Lbs/SY maximum we can pay up to. In the above example the Contractor
did not exceed the maximum allowable spread of 105% per Specifications. Therefore, we will
calculate the pay area using the 1037 Lbs/SY that the Contractor placed.
Project Average Spread Rate
The Project Specified Rate for Total Thickness
Adjustments
= 1037 Lbs/SY
= 990 Lbs/SY
11-4-3
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
The equation, per Specifications:
Pay Area
= Surface Area (SY) X (Project Average Spread rate)
(Specified Spread Rate for Total Thickness)
Plan Quantity total area = 46,800 SY, so Pay Area =
= 46,800
And
–
X (1037) = 49,022 SY
(990)
49,022
46,800 (Plan Quantity)
2,222 SY Spread Rate Adjustment
2,222 SY will need to be shown as a line item adjustment in Site Manager and 2,222 SY X
$50.35 = $ 111,877.70 is the amount the Contractor will receive based on the Specifications
for the Spread Rate Adjustment.
Note 1: There will be NO CPF adjustment applied to the Spread Rate Adjustment on any
Square Yard Pay Item.
Note 2: Fuel and Bituminous Adjustments will be deducted if the Contractor places more
tonnage than the maximum allowed (for the overall 105% adjustment). The tonnage will be
deducted on the last Fuel adjustment in Site Manager and on the final Bituminous Certification
accordingly.
Example: If the Project Average Spread Rate exceeds the Maximum Spread Rate, you would
find the maximum SY to determine the adjustment. The pay area can be adjusted up to 105%
of the designed surface area.
When Average Spread Rate Exceeds Maximum Spread Rate:
990 X 1.05 = 1039.5 Lbs/SY maximum we can pay up to. If the Contractor exceeded the
maximum allowable spread of 105% per Specifications and the Project Average Spread Rate
is 1050 Lbs/SY. Therefore, we will calculate the pay area using the 1039.5 Lbs/SY which is the
maximum that we can pay up to.
Project Average Spread Rate
The Project Specified Rate for Total Thickness
The equation, per Specifications:
Pay Area
Adjustments
= 1039.5 Lbs/SY
= 990 Lbs/SY
= Surface Area (SY) X (Project Average Spread rate)
(Specified Spread Rate for Total Thickness)
11-4-4
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Plan Quantity total area = 46,800 SY, so Pay Area =
= 46,800
And
–
X (1039.5) = 49,140 SY
(990)
49,140
46,800 (Plan Quantity)
2,340 SY Spread Rate Adjustment
2,340 SY will need to be shown as a line item adjustment in Site Manager and 2,340 SY X
$50.35 = $ 117,819.00 is the amount the Contractor will receive based on the Specifications
for the Spread Rate Adjustment.
Note: Since the Contractor went over on spread rate (1050 Lbs/SY and maximum up to 105%
is 1039.5 Lbs/SY) we will also need to deduct some tonnage from the last Certification for Fuel
& Bituminous Adjustments.
1050 Lbs/SY – 1039.5 Lbs/SY = 10.5 Lbs/SY difference;
To find the amount of Tons deduct:
(10.5 Lbs/SY X 46,800 SY) ÷ 2000 Lbs/Ton = 245.7 Tons
The 245.7 tons will be deducted from the last Certification turned in by the Contractor for
Bituminous and Fuel.
B)
Tonnage Pay Item Adjustments
1. Superpave Structural Course and Friction Course:
The pay quantity will be based on the project average spread rate, excluding overbuild, limited
to a maximum of 105% of the spread rate. Both Structural and Friction Courses are calculated
the same way (Structural courses could be laid using one or more lifts, while Friction Courses
are laid as one lift only).
First calculate the Specified Spread Rate for the project:
Use the applicable formula below:
Specified Spread Rate = t x Gmm x 43.3 Lbs/SY
Where t= Thickness
Gmm is the maximum specific gravity
43.3 is a constant derived by the State Material’s Office
For FC-5 only, use the following equation:
Specified Spread Rate (FC-5) = t x Gsb x 40.5
Adjustments
11-4-5
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
t= Thickness
Gsb is the combined aggregate bulk specific gravity from the design mix
40.5 is a constant derived by the State Material’s Office
The Specified Spread Rate for the Total Thickness is based upon the plan thickness converted
to Spread Rate.
Example: Overall Spread Rate Adjustment for Multiple FIN Projects, Under One Contract
(105% Max. Pay)
To calculate the Project Spread Rate for A & B:
This example shows a105% Overall Adjustment Spread Rate on a multi fin project, how to
calculate and separate quantities under the two projects.
From the Contract:
Project “A” shows 13,754.2 Tons and 172,559 SY
Project “B” shows 91.1 Tons and 1,063 SY
Total Tonnage for Contract = 13,845.3 Tons
Total Area SY for Contract = 173,622 SY Area
The mix used had a Gmm of 2.576 Lbs/SY
The Target Spread Rate is calculated by 2.576 X 1.5 X 43.3 = 167.3 Lbs/SY
The Specifications show that the Friction Course gets a maximum of 105% from design
spread rate which = 175.7 Lbs/SY (max. allowed) (167.3 X 1.05 = 175.7 Lbs/SY)
Project “A” overall adjustment would be determined by:
(13,754.2 ÷13,845.3) = 0.99 out of total Contract, and
Project “B” overall adjustment would be determined by:
(91.1 ÷ 13,845.3) = 0.01 out of total Contract
However, 15,281.2 Tons are the total Tons placed by Contractor on the road. The maximum
Tons that could be placed should be calculated, as follows:
(175.7 Lbs/SY X 173,622 SY) ÷ 2000 Lbs/Tons = 15,252.7 Tons
So 15,252.7 Tons is maximum that could be placed
Then the total deduction and the deduction on each project can be calculated. The
Department can only pay up to 105% maximum. Since the Contractor placed more tonnage
than the maximum tonnage, there will be a deduction. The deduction is done as follows:
15,252.7 Tons – 15,281.2 Tons = - 28.5 Tons Total deduct, therefore:
Adjustments
11-4-6
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
For Project “A” -28.5 X 0.99 = -28.2 Tons is deducted and
For project “B” -28.5 X 0.01 = - 0.3 Tons is deducted.
The deduction under each project is from the original contract amount and unit price at 100%.
Also, if there is a CPF Adjustment, there is either a deduction or addition (depending on the
factor) from the last CPF adjustment. Example: if the CPF
=102% (or 0.02)
and the last
lot was 4000 Tons; unit price = $ 50.00;
0.02 X $ 50.00 = + $ 1.00 (New Unit Price)
For project A:
For project B:
+ $ 1.00 X - 28.2 = - $ 28.20 deduct, and
+ $ 1.00 X -0.3 = - $ 0.3 deduct
Note 1: Fuel and Bituminous Adjustments will also be deducted if the Contractor places more
tonnage than the maximum allowed (for the overall 105% adjustment). The tonnage will be
deducted using the last Fuel adjustment index in Site Manager and on the final Bituminous
Certification accordingly.
Note 2: See Section 11.5 for other asphalt pavement deficiencies and examples such as
straight edge deficiencies. See Attachment 11-4-7 for an example of thickness and spread
rate for multi and single layers.
2. Miscellaneous Asphalt: Another tonnage pay item is Miscellaneous Asphalt. It is paid
based on the average spread rate or dimensions for the project, limited to a maximum of
105%. For calculation, a weight of 100 Lbs/SY per inch thickness of asphalt is used.
An Example of how you would pay for miscellaneous asphalt for up to 105% is as
follows:
Original Square Yards = 800
Original Tons = 80.00
Final Square Yards = 800
Final Tons = 90.50
Spread rate Lbs/SY = [Tons X 2000 (Lbs/Ton)] ÷ Area (SY)
= (90.50 Tons X 2,000 Lbs/Ton) ÷ 800 SY= 226.25 Lbs/SY
(226.25 Lbs/SY  *200 Lbs/SY) X 100 = 113 %
113 % > 105 %
200 Lbs/SY X 1.05 = 210 Lbs/SY maximum Lbs/SY payable
Tons = (Spread Rate Lbs/SY X Area SY) ÷ 2000 Lbs/SY
(210 Lbs/SY X 800 SY)  2,000 Lbs/Ton = 84 Tons Final Pay Quantity
Adjustments
11-4-7
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
* 2" X 100 Lbs/SY = 200 Lbs/SY
Note: There will be no CPF adjustment on Miscellaneous Asphalt
11.4.3.2
THICKNESS ADJUSTMENTS (Core-Out Adjustments)(Limerock)
This is for Optional Base Courses (white base only) such as Limerock, Cemented Coquina,
etc. Adjustments in accordance to Specifications and Special Provisions:
When the pavement is to be paid for on an area basis, the area to be paid for shall be Plan
Quantity subject to the provisions of Section 9-3.2 of the Specifications.
The volume of pavement represented by the difference between the average thickness
(determined as specified in Section 285-7 or Section 200-9 of the Standard Specifications),
and specified thickness shall be converted to equivalent square yards (SY) of pavement of
specified thickness and the quantity thereby obtained shall be added to, or deducted, from the
pay areas as appropriate.
The maximum average thickness of pavement, upon which payment will be made, shall be
limited as follows:
Example 1: Core-Out Adjustment: Positive Adjustment
Type Limerock
7.00″
Plan Quantity
8,000 SY
Specifications allow 1/2″ per Subarticle 285-7
Actual core out = 7.50″
Therefore = 7.50″ - 7.00″ = 0.071428571* X 100 = 7.1428571 % > 5%**
7.00″
0.071428571 X 8000 SY = 571.43 SY and 571 SY is > 5%
*Make sure to use the floating decimal to calculate over or under the 105%.
**Optional Base shall not exceed 105% of the surface area per Section 285-8 of the
Specifications. The above exceeded the 5% as stated in the Specifications.
Therefore: 0.05 X 8,000 SY = 400 SY Thickness Adjustment
The Department can only pay 400 SY based on the Specifications.
400 SY will need to be shown as a line item adjustment in Site Manager.
Adjustments
11-4-8
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Example 2: Core-Out Adjustment: Negative Adjustment
Type: Limerock
8.00″
Plan Quantity
10,500 SY
Specifications allow 1/2″ per Subarticle 285-7
Actual core out average = 7.79″ (See Note 1)
7.79″ - 8.00″ = - 0.0262500*
8.00″
- 0.026250 X 10,500 SY = - 275.6 = - 276 SY (Negative Thickness Adjustment)
- 276 SY will need to be shown as a negative line item adjustment
*Make sure to use the floating decimal on your calculator to come up with either the negative
or positive adjustment.
Note 1: Any core out average less than the plan specified thickness (in this example, anything
less than 8") will be considered a negative adjustment.
Note 2: Any shy area on the core out report is excluded from the core out average calculation.
Shy areas will need to be corrected by scarifying and adding additional base material. Or if
authorized by the Engineer, it may be left in place without correction and at no pay (per
Specifications 285-6.2).
11.4.3.3
THICKNESS/SPREAD RATE ADJUSTMENTS (COMPOSITE BASE)
For Composite Base, the white base Limerock will receive a thickness adjustment, and the
asphalt base will receive a spread rate adjustment (see example Superpave Asphalt Base).
However, the spread rate will be converted to inches. The inches are added to the thickness
adjustment of the Limerock base and a total is generated of the Composite base for a
thickness adjustment not to exceed 105%. See example below
Example: Thickness Adjustment
Composite base = 4" Limerock and 4" Type B-12.5 asphalt
Convert 4" of asphalt to Lbs/SY by the following formula as specified in Section 234-8.1 of the
Specifications.
Adjustments
11-4-9
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
43.3* X inches X Gmm**
*43.3 is a constant derived by the State Materials Office.
**Gmm is taken from the approved design mix for the specified project.
**Gmm (maximum specific gravity) = 2.358
43.3 X 4 X 2.358 = 408 Lbs/SY
Core-out report for Limerock = 4.25"
Average spread rate for asphalt = 426 Lbs/SY***
Note: The Average Spread Rate for asphalt will be calculated the same way as seen in the
examples for Asphalt Base Courses)
Plan Quantity = 10,000 SY
***Convert Lbs to inches based on reverse formula in Section 234-8.1
426 ÷ 43.3 ÷ 2.358 = 4.17"
4.25" (Limerock) + 4.17" (Asphalt) = 8.42" average thickness for composite base.
Thickness adjustment = (8.42" – 8.00") = .0525 (>5%) X Surface Area
8.00"
**** Pay will be limited to a maximum of 105% X Surface Area (the area exceeded the 105%,
in this case)
Therefore: Thickness Adjustment = 0.05 X Surface Area
0.05 X 10,000 SY = 500 SY Thickness Adjustment, and 500 will need to be shown as a line
item adjustment
11.4.3.4
COMPOSITE PAY FACTOR (CPF) ADJUSTMENTS
Once a Lot is closed out and it has been determined by the Verification Technician (VT) that a
CPF adjustment needs to be made, it shall be done during the month the Lot is closed out and
paid accordingly on the next progress estimate. The engineer or designee shall calculate the
unit price adjustment and enter the revised unit price adjustment on the monthly/progress
estimate along with the tons represented by each lot produced.
These revised unit price adjustments range from 75% to 105%. All lots shall be grouped
together for each unit price adjustment.
Adjustments
11-4-10
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
CPF adjustments in Sitemanager will be handled by adjusting the unit price by the variance
percent of the CPF. (See Attachment No 11-4-1a & 11-4-1b). Also place a new
Computation Sheet in the Computation Booklet or break out the percentage adjustments on
the original Computation Sheet for the adjusted item(s). (See Attachment No. 11-4-2)
Note: Plan Quantity Vs Road Report: In some instances, the CQC road report will show more
or less square yards than plan quantity. The Contractor should use due care when reporting
square yards to accurately report the length and width of area being placed. Should the square
yards not match plan quantity; the yardage will be adjusted on the last Composite Pay Factor
Adjustment to equal Plan Quantity. The PA needs to use reasonable investigation to see if
plan quantity is in error and warrants an adjustment.
CPF Adjustments apply to Superpave Base, Friction, Structural, Composite Base
(Asphalt portion), and Asphalt Treated Permeable Base Courses. There will be no CPF
adjustments on Miscellaneous Asphalt, Turnout Construction (Asphalt), and Temporary
Asphalt. There will be NO CPF adjustment on Streamline Contracts.
11.4.3.4.1
Verification Technician’s Responsibility
The Verification Technician is responsible for entering the CQC Technician’s test results in the
Composite Pay Factor (CPF) spreadsheet to calculate the pay adjustments. These entries
shall be done at the closing of a Lot during the life of the contract. It is the responsibility of the
Project Engineer or designee to verify that the test results entered by the Verification
Technician are correct. All reports shall be affixed to the CPF spreadsheet representing that
Lot. See example of Lot Submittal Package (See Attachment No. 11-1-2 and 11-1-2a thru
11-1-2e). The reports along with the asphalt ticket packets shall be collected two working days
after the closing of a Lot. The Lot Submittal Package shall be submitted with the Final
Estimates Package.
11.4.3.4.2
(A)
Pay Factor Material Documentation- Disposition of Defective Material
(DDM)
Composite Pay Factors < 80 or ≥ 75
(1)
Remove and replace the tonnage in the Lot and pay the CPF represented by the
replacement Lot. The original Lot Submittal Package will be explained with
remarks as “No Pay”.
(2)
Obtain an Engineering Analysis, if agreed to by the Project Administrator, to
determine if material may remain in place. If material is to remain in place, pay
the original CPF. If the material is to be removed and replaced, pay the CPF
represented by the replacement Lot. The original Lot Submittal Package will be
Adjustments
11-4-11
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
explained with remarks as “No Pay” with reference to the new replacement Lot
Submittal Package.
Note: The Engineer, at his/her sole option, may perform an
evaluation and leave this material in place, apply the CPF for
this Lot, or have this material removed and replaced as
identified in No. 1 above.
(B)
Composite Pay Factor < 75Remove and replace the tonnage in this Lot and pay the CPF represented by the
replacement Lot. The original Lot Submittal Package will be explained with remarks as
“No Pay”.
(C)
Independent Verification Test (VT) Failure
This shall be handled as stated above. In some instances, the Project
Manager/Administrator will require removal and replacement of tonnage within a Lot. If
removal and replacement is required, DO NOT CORRECT THE REPORTS. The reports
should reflect what actually happened. This defective asphalt may be a partial sublot, an
entire sublot, or an entire Lot. The CQC Technician should identify the problem before
an entire Lot is placed. The defective asphalt will then be milled and replaced with
asphalt within another Lot. This is documented in the “Remarks” area. The Technician
will document the tonnage of “acceptable asphalt” that is replacing the defective one
that was previously placed. The previous report number and date will also be identified
in the “Remarks”. The new asphalt will be analyzed in the new Lot and paid accordingly.
The previous Lot Submittal Package will also be identified in the “Remarks” area
showing a deduction of the asphalt in this Lot, and it will be referenced to the new Lot
Submittal Package and to where this material was actually produced.
Example:
Lot 3 has defective asphalt for which the PA, after concurrence from the District
Construction/Bituminous Engineer, required removal and replacement. The Project
Manager identifies the area in writing to the Contractor. The Contractor will mill up this
defective asphalt at their expense and replace with asphalt from a later Lot. This asphalt
will be analyzed in this later Lot and be paid based on this later Lot’s CPF with remarks
identifying the area and replacement tonnage represented. For example, the
replacement tonnage equals 249 tons. The previous Lot Submittal Package will have
a deduction of 249 tons handled in the remarks column and payment deducted at the
previous Lot’s CPF and referenced to the new Lot Submittal Package in which the
replacement tonnage was produced. The new Lot Submittal Package will clearly
Adjustments
11-4-12
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
identify that 249 tons produced was needed to replace defective asphalt produced in Lot
3, with references and remarks.
(D)
Individual Quality Control Test
In some instances an individual QC test will bring the CPF down to either (<80 or ≥75)
or <75. The original lot is then paid based on the outcome of the CPF. The Contractor
may perform an Engineering Analysis Report (EAR), if approved by the PA, to isolate
the tonnage that needs to be removed and the effected material will be deducted from
the original Lot Submittal Package with remarks explaining its removal and
replacement. The replacement material is to be paid in the Lot Submittal Package at
the appropriate CPF for that lots production.
Note 1: If all material in a sublot is removed and replaced, the QC test for that sublot
will be thrown out and the CPF will be based on the remaining QC test results. The VT
is to compile a new CPF worksheet based on the remaining tests results, place it in the
Lot Submittal Package and “VOID” the original CPF worksheet.
Note 2: When isolating tonnage where removal is required, the PA must evaluate the
material between the previous QC test and the QC test that caused the Lot to fall into
the Low Pay Factor and evaluate the material placed after previous or current QC test.
See Attachment 11-4-3 for an example of an e-mail from the District Material’s Office to
the PA with No. of tests and costs, and See Attachment 11-4-4a and 11-4-4b for an
example of reporting cost resolution testing in Sitemanager.
Example of documenting Low Pay Factor Material due to Quality Control Test Failure
LOT # 3
SUBLOT # 1
1,000 Tons
SUBLOT # 2
1,000 Tons
SUBLOT # 3
1,000 Tons
SUBLOT # 4
700 Tons
400 Tons
QC
1
QC
2
QC
3
QC
4
EAR
The production was shut down at 700 tons production in Sublot #4 due to a QC failure. After
an EAR was performed it was determined that 400 tons in Sublot #3 was also affected.
Adjustments
11-4-13
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
All of Sublot #4 was removed therefore the remaining 3 QC test results are utilized to
determine the CPF. The 3 QC test results represent the remainder of the Lot.
Total production for pay will be: 2,600 tons in Lot #3 based on the 3 QC tests. The 1,100 tons
(400 tons Sublot #3 & 700 tons in Sublot #4) will be removed and replaced. The deduction will
be handled in the remarks column of the Lot Submittal Package for Lot #3 with reference to
the Lot Submittal Package where the replacement tonnage occurred. The replacement
tonnage (1100 tons) will be paid at the CPF for the Lot that produced the replacement tonnage
with explanation in the remarks column referencing this material to Lot #3.
The Fuel & Bituminous Adjustments will follow the same process as removal and replacement
of asphalt material (on DDM’s). For example; the Bituminous Adjustment for the asphalt that
was rejected by the amount of 1,100 Tons will be deducted on the monthly bituminous
certification that was submitted by the Contractor for the period reflecting sublots 3 & 4 that
were placed previously. Likewise, the monthly bituminous adjustment for the replaced 1,100
Tons of asphalt will be included on the monthly bituminous certification related to the period
when the replacement will take place. Explanations and references will be made on the
bituminous certification sheets and the Lot Submittal Packages in question to address the
removal and replacement quantity.
(E)
EXAMPLES OF CPF CALCULATIONS
1)
CPF Calculation for Tonnage Pay items;
All documentation will be handled for < 80 ≥ 75 or < 75 as stated above.
EXAMPLE (1A): If CPF is <80 or ≥75
In this example, the CPF is @ 76%
LOT 2;
4000 Tons; Unit Price = $ 50.00
0.76 – 1.0 = − 0.24
− 0.24 X $ 50.00 = − $ 12.0
− $ 12.0 X 4000 = − $ 48,000.00 (negative Line Item Adjustment in
Sitemanager). This is if the Engineer decides to leave in place at reduced
price.
Example (1B): If CPF is > 80 but < 100
In this example, the CPF is @ 98%
Lot 3; 4000 Tons; Unit Price = $ 50.00
0.98 – 1.0 = − 0.02
− 0.02 X $ 50.00 = − $ 1.0000 New Unit Price
4,000 Tons X − $ 1.0000 = − $ 4,000.00 (This will be a negative Line Item
Adjustment in Sitemanager)
Adjustments
11-4-14
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Example (1C): If CPF is 100%
There is no CPF adjustment at 100%.
Example (1D): If CPF is > 100%
In this example, the CPF is @ 103% (> 100% and up to 105%)
LOT 5; 4000 Tons; Unit price $ 50.00
1.03 – 1.00 = 0.03
0.03 X $ 50.00 = $ 1.5000 New unit price
4000 Tons X 1.5000 = $ 6,000.00 (Positive Line Item Adjustment in
Sitemanager)
2)
CPF for Square Yard Pay Items
Example: CPF @ 105%; Square Yard Pay Item (Example Superpave Base):
Tons from Asphalt report; LOT 1 = 4000 Tons; Area = 25,397 SY;
Unit price = $ 55.00
1.05 – 1.00 = 0.05
0.05 X $ 55.00 = $ 2.75 (New Unit Price)
25,397 SY X $ 2.75 = $ 69,841.75 (Positive Line Item Adjustment in Sitemanager)
Note: Calculations for CPF <80 or ≥75; or < 75; > 80 and up to 105%; will also be
calculated the same way. You will get the square yards represented by the LOT
tonnage from the Asphalt Reports and calculate accordingly.
3)
CPF Calculations for a Cubic Yard Pay Item
As described above, asphalt treated permeable base is measured and paid for in
Cubic Yards. Therefore, we must be able to calculate the cubic yards from the
asphalt report, as described here in this example:
Example: From Asphalt Reports: LOT 3 @ CPF of 105%
Total Tonnage LOT 3=1623.55 Tons;
Total Square Yards LOT 3= 9,494.13 SY
The Unit Price is $ 240.00
To get the Cubic Yards:
The Thickness is 4 Inches; 4 In. ÷ 12 In. / Ft = 0.3333 Ft.
The area in square yards will need to be changed to square feet:
9,494.13 SY x 9 SF/SY = 85,447.17 SF
We have the Thickness if feet = 0.3333 FT
To calculate the volume for this LOT =
85,447.17 SF x 0.3333 Ft. = 28,479.54 CF; However we need CYs;
28,479.54 CF ÷ 27 CF/CY = 1,055 CY
Adjustments
11-4-15
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Now we can calculate the dollar adjustment for this LOT:
1.05 – 1.00 = 0.05
0.05 X $ 240.00 = $ 12.0000
1,055 X $ 12.0000 = $ 12,660.00 (Positive Line Item Adjustment in Site Manager)
4)
CPF Documentation for Multiple FIN Projects, Under One Contract
All CPF’s for asphalt produced and accepted for a particular item shall be
reported under the lead FIN (see exception below). The quantities for each
FIN will be determined by the PA, as the prorated amount determined from
the TES pay item breakout. This will be done by taking the total tons shown
on the TES for each FIN and dividing it by the total tons for the contract,
then multiplying this amount by the total tons placed for each CPF. This
shall be done during the month the Lot is closed out and paid accordingly
on the monthly progress estimate.
Example:
Project “A” TES shows 10,000 tons
Project “B” TES shows 20,000 tons
Total TES for contract = 30,000 tons
Tons placed = 31,500 tons*
CPF @ 105% = 8,000 tons
CPF @ 102% = 20,000 tons
CPF @ 98% = 3,500 tons
Project “A” is determined by dividing 10,000 by 30,000 and multiplied by
the total tons for each CPF.
10,000 ÷ 30,000 = 0.33
CPF @ 105% = 8,000 X 0.33 = 2,640.00 tons
CPF @ 102% = 20,000 X 0.33 = 6,600.00 tons
CPF @ 98% = 3,500 X 0.33 = 1,155.00
Project “B” is determined by dividing 20,000 by 30,000 and multiplied by
the total tons for each CPF.
20,000 ÷ 30,000 = 0.67
CPF @ 105% = 8,000 X 0.67 = 5,360.00 tons
CPF @ 102% = 20,000 X 0.67 = 13,400.00 tons
CPF @ 98% = 3,500 X 0.67 = 2,345.00 tons
Adjustments
11-4-16
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Total CPF @ 105% = 2,640 + 5,360 = 8,000 tons
Total CPF @ 102% = 6,600 + 13,400 = 20,000 tons
Total CPF @ 98% = 1,155 + 2,345 = 3,500 tons
Note 1: This may be done on Federal Aid participating and Non Federal Aid
participating projects. These pro-rated amounts shall be shown in the
computation booklet along with the calculations.
Note 2: For this example; 31,500 Tons placed by Contractor is 105%
maximum of the original Contract quantity, which is allowed per
Specifications. (See next example for the maximum pay).
Exception: When an item is shown only on one FIN number, those tons
will be reported on that FIN number.
11.4.3.5
BITUMINOUS ADJUSTMENTS
All asphalt produced and accepted on a project will receive a bituminous adjustment if
requirements are met, per Specifications 9-2.1.2 (see note below for exceptions). The
requirements are that a contract has an original contract time of more than 365 calendar days
or more than 5000 tons of asphalt concrete on conventional and LS/DB contracts.
Note: Exception: there will be no Bituminous Adjustments on Streamline Contracts.
On renewable push button contracts, where the renewable contract is longer than 365 days,
the Department will adjust the bid unit price for the bituminous material.
Bituminous Adjustments will be made on Superpave Asphalt Base, Structural and Friction
Courses, on Turnout Construction ”Asphalt”, on Asphalt Treated Permeable Base, on
Miscellaneous Asphalt Pavement, and on Asphalt Rubber Membrane Interlayer Pay Items.
The Department will adjust the price for bituminous material, excluding cutback and emulsified
asphalt to reflect either increases or decreases in the Asphalt Price Index (API) of bituminous
material from that in effect during the month in which bids were received. The Department will
determine the API for each month and place it on the Construction website. When an estimate
is generated, Bituminous Adjustments must be calculated per specifications using the Asphalt
Price Index Table and a line item adjustment will be added to the estimate. Asphalt Price
Indexes can be found on the Department’s Construction Website at
www.dot.state.fl.us/Construction/fuel&bit/fuel&bit.htm
The Department will also make a Bituminous Adjustment for Polymer PG76-22 and PG 82-22
Binder on all Contracts that meet the criteria of Section 9-2.1.2 of the Specifications. The
Adjustments
11-4-17
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
Criteria for Polymer PG76-22 and PG 82-22 will be as stated above. For projects let before
January 2007, the Contractor will continue to use the existing forms/worksheets. These revised
forms or worksheets can be found on the Construction Website.
Note: When a Composite Base item(s) is specified in the Plans, a price adjustment for
bituminous material will apply to that asphalt portion of the base only, according to Section 92.1.2 of the Specifications.
11.4.3.5.1
CONTRACTOR’S RESPONSIBILITY
It is the Contractor’s responsibility to provide, monthly, to the Department a Certification of
Quantities (for conventional projects) or a Worksheet (for LS or Design Build projects). They
will be turned in monthly to the PA for payment.
11.4.3.5.2
CUTOFF PERIOD
All Certifications of Quantities or worksheets provided by the Contractor will need to
represent the amount of material placed on the project and accepted by the Department thru
the estimate cutoff period. The estimate cutoff dates are provided on the State Construction
Office website.
Below are examples to show how the estimate cutoff dates are to be utilized in processing the
Certification of Quantities provided by the Contractor.
EXAMPLE: This is for a Conventional Project: The cutoff date for Progress Estimate, i.e.
#18 is February 17th, 2013. The Contractor’s Certification of Quantities should reflect all
material placed and accepted from January 20th, 2013, thru February 17th, 2013 (cutoff date of
previous month to cutoff date of present month). See the snapshot of the cutoff dates that are
listed on the Construction Website below.
The Average Price Indexes for Bituminous and Polymer PG76-22 /PG 82-22 will be posted on
the State Construction Office Web site before the 15th of each month.
On Conventional Projects, the Contractor will use Form 700-050-66 which is the Certification
of Quantities Form for Bituminous Material. On this Form, the February bituminous index will
be used for the example mentioned above. See Attachment 11-4-1 (set-up sheet for this form)
and Attachment 11-4-2 (Contractor’s Certification of Quantities Form). Once the Contractor
fills out the Set-Up sheet, and clicks on “Go to Main Sheet” (located at bottom of form) the
Certification of Quantities Form will appear all filled out with quantities for pay. The
Contractor will sign this form and turn it in to the PA monthly for payment. See note under
Section 11.4.8.3 of this Manual Also See Attachments 11-4-5a and 11-4-5b showing an
Adjustments
11-4-18
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective: July 1, 2002
Revised Date: September 3, 2013
example of Form 700-050-66 filled out by a contractor for a Conventional Project, and
Attachment 11-4-6; a Worksheet for a DB/LS Contract.
Example of the Cut-Off dates for 2013 on the Construction Website
Note: for LS/DB projects, the Contractor will use the worksheets, also provided on the
Construction Website.
11.4.3.5.3
RESIDENT OFFICE PERSONNEL RESPONSIBILITY
It is the responsibility of the Resident Office (RO)/CCEI personnel to make sure that the
Contractor adjusts the bituminous material monthly on each project assigned them that meet
the criteria specified in Section 9 of the Specifications. Once the Contractor turns in a
certification or worksheet, the Resident/CCEI personnel, in charge of the contract, will spot
check the form/worksheet for quantity errors, indexes, dates, etc.
Note: The PA will enter the adjustments as a line item adjustment in Site Manager. The
adjustments could be negative or positive.
Adjustments
11-4-19
ATTACHMENT 11- 4-1a
REPORTING COMPOSITE PAY FACTORS IN SITEMANAGER
Pay for all asphalt by reporting the full tonnage on a Daily Work Report.
Handle all Composite Pay Factors as a Line Item Adjustment reflecting only the
variance in unit price from the full contract bid price.
Example: Lot no. 4 for 4000 tons has a composite pay factor of 98%
The contract bid price in $49.85.
The Line Item Adjustment in Sitemanager would be entered under “Quantity” at 4000
Tons, and under “Unit Price” at – $1.00
(98% is 0.98 − 1.0 = − 0.02, and − 0.02 X $ 49.85 = −$ 0.9970 (rounded to two decimal
points 1.00) and the total “Amount” will show as − $ 1.0000 in Site Manager
Note: Site Manager carries the decimal to 5 digits. This will be corrected in the future.
Currently we show the work with 2 decimal places for the unit price.
Asphaltic Concrete Production, Other Base Courses, and Placement Records
11- 4- 1 a
ATTACHMENT 11- 4-1b
REPORTING COMPOSITE PAY FACTORS IN SITEMANAGER
Appropriate remarks should be made in a manner that reflects how the unit price was
arrived at.
Lot 4 = 4000 tons; CPF Lot 4=98%; Unit Price=$49.85
Adjustment Unit Price: $49.85 X -0.02 = - $ 1.0000
4000 tons X -$ 1.0000 = -$ 4,000.0000
Asphaltic Concrete Production, Other Base Courses, and Placement Records
11- 4- 1 b
ATTACHMENT 11-4-2
COMPUTATION SHEET FOR SUPERPAVE ASPHALTIC
CONCRETE (TRAFFIC B)
Adjustments
Page 11-4-2
ATTACHMENT 11-4-3
Example
E-Mail from District Material’s Office to the PA with No. of tests and Costs
Daniel Day
From:
Sent:
To:
Cc:
Subject:
Daniel Day
Thursday, May 21, 2012 @ 2:49 PM
Howard Jump ([email protected])
J. Corley; Bill Blass; etc; etc.
FIN # 41109815201 Lot 6 Resolution Results
Howard,
Attached are the Resolution results for Lot 6 on the above mentioned project. The
resolution results DO NOT compare with QC results. Therefore, acceptance and
payment for the Lot with respect to density will be based on Resolution results.
Cost for the Resolution testing should be deducted from the monthly estimate (see
below).
For each sublot, the Resolution results for average Roadway Gmb should replace the
QC results for average Roadway Gmb, and most likely changing the density value,
Individual Pay Factor, and the Composite Pay Factor. Any new values should be
compared to the Master Production Range as well as the criteria of 334-5.9.5 to
determine acceptance.
●
●
please do not approve the QC or RT samples for this Lot. The resolution
lab will approve these samples.
Resolution cost (- 31.60 per core X 9 cores = - $ 284.40)
Thanks
Daniel Day
Assistant District Bituminous Manager
Florida Department of Transportation
100 N. Day Road (Ms 20)
Deland, Florida 33333
380-555-5550(office)
Asphaltic Concrete Production, Optional Base, and Placement Records
11-4-3
ATTACHMENT 11-4-4a
REPORTING COST OF RESOLUTION TESTING IN SITEMANAGER
Asphaltic Concrete Production, Optional Base, and Placement Records
11-4-4a
ATTACHMENT 11-4-4b
REPORTING COST OF RESOLUTION TESTING IN SITEMANAGER
Asphaltic Concrete Production, Optional Base, and Placement Records
11-4-4b
ATTACHMENT 11-4-5a
Form 700-050-66 -– Bituminous Adjustment Example
The Set –Up Sheet for Conventional Projects
11-4-5a
ATTACHMENT 11-4-5b
Form 700-050-66 - CONTRACTOR’S CERTIFICATION OF QUANTITIES
BITUMINOUS MATERIAL - CONVENTIONAL PROJECTS
11-4-5b
ATTACHMENT 11-4-6
Contractor’s Worksheet for DB/LS Project
CONTRACTOR'S ESTIMATE WORKSHEET
BITUMINOUS AND POLYMER MATERIAL
(DESIGN BUILD AND LUMP SUM PROJECTS)
WORKSHEET NO.
FINANCIAL PROJECT ID.
CONTRACTOR
CONTRACT NO.
PERIOD REPRESENTED BY WORKSHEET:
FROM (MO/DAY/YR)
TO (MO/DAY/YR)
ASPHALT MATERIAL
ASPHALT TONNAGE PLACED
GALLONS OF ASPHALT CEMENT USED IN MIX *
ADDITIONAL GALLONS (ARMI*)
TOTAL GALLONS
BASE ASPHALT PRICE INDEX FOR (______):
CURRENT ASPHALT PRICE INDEX FOR (______):
ASPHALT PRICE INDEX DIFFERENCE:
MONTHLY DOLLAR AMOUNT:
POLYMER MATERIAL
POLYMER TONNAGE PLACED
GALLONS OF POLYMER USED IN MIX *
TOTAL GALLONS
BASE POLYMER PRICE INDEX FOR (______):
CURRENT POLYMER PRICE INDEX FOR (______):
POLYMER PRICE INDEX DIFFERENCE:
MONTHLY DOLLAR AMOUNT:
ASPHALT MATERIAL (ASPHALT TREATED PERMEABLE BASE)
ASPHALT TONNAGE PLACED
GALLONS OF ASPHALT CEMENT USED IN MIX*
BASE PRICE INDEX FOR (______):
CURRENT ASPHALT PRICE INDEX FOR (______):
ASPHALT PRICE INDEX DIFFERENCE:
MONTHLY DOLLAR AMOUNT:
* Calculations based on Specifications.
Adjustments
11-4-6
ATTACHMENT 11-4-7
EXAMPLE OF THICKNESS AND SPREAD RATE OF LAYERS (MULTI & SINGLE):
MULTI LAYER EXAMPLE: If the asphalt roadway report shows a highlighted area(s) as a low or a
high spread rate; this only means that you are ± 5% off target.
You must look at the spread rate to see if it is within ± of the spread tolerance (the tolerances
are based on the design thickness). So, if the typical calls for 3 inches of SP 12.5; the Contractor
is going to place the asphalt in two lifts (If the bottom lift is ± 25 Lbs/SY of the target, the
Contractor will need to increase/decrease the 2nd lift, in this area, to be within the specified
tolerance).
Per Specification 330-6.1.5.2 Maximum Spread Rate Tolerances: When the Average spread
rate for the total structural or friction course pavement thickness measured in accordance with
330-6.1.5.1 (thickness control: ensuring spread rate is within 5% of target spread rate….etc.)
exceeds the maximum spread rate tolerances shown in Table 330-3, address the unacceptable
pavement in accordance with 330-9.5 (unacceptable pavement).
Course
Structural
Structural
Friction (dense)
Friction (open)
Table 330-3
Maximum Spread Rate Tolerances
Design Thickness
≥ 2.5 inches
< 2.5 inches
−
−
Spread Rate Tolerance
± 50 Lbs/SY
± 25 Lbs/SY
± 2 5 Lbs/SY
± 15 Lbs/SY
The Layer thicknesses for fine & course mixtures are also shown under Section 334-1.4.1 & 3341.4.2
Also in the July 2010 workbook (see Section 330-2.2) and the January 2013 Workbook (see
Section 330-2, regarding pavement density, mix temperature, mix spread rate, pavement
texture, and reporting: these steps say that you are to look at each line of the road report for
any line that is out of tolerance.
You will look at the spread rate for the Total course and if that is out by ± the tolerance of the
spec then you will have the Shy or Plus Areas isolated. You will need to find the tolerance for
the total course. See Table 330-3 for Structural/Friction courses’ maximum/minimum
tolerances versus design thickness.
Example (1):
Structural Course, SP 12.5: The Typical Section calls for 3 inches thick.
The spread rate on the Asphalt Roadway Report that is highlighted as low or high spread,
reflects the tolerance that exceeds or is less than the tolerance specified in the Standard
Specifications of 5%.
11-4-7
You will address the deficient area in accordance with Section 330-9.5 under Corrections, which
states: for structural course layers, remove & replace the full depth of the layer, extending to a
minimum of 50 feet on both sides (where possible) of the defective area for the full width of
the paving layer.
You now look at the spread rate to see if it is within ± of the spread tolerance. These tolerances
are based on the design thickness, so if the Typical calls for 3 inches of SP = 12.5 you are going
to place it in two (2) lifts. If the bottom lift was more or less than 25 Lbs/SY you would have to
stack it with the 2nd lift. Here the first lift was placed shy by more than 25 Lbs/SY for a 1.5 “ lift,
between Sta. 13+98 and 17+80, but because the Contractor has another lift to place, you would
not remove & replace or assess a penalty at this time. The second lift placed was shy in this
area but not more than 25 Lbs/SY for a 1.5 “ lift.
Per Specifications, you will need to calculate the 3 inches overall spread rate for the total
course and if that is out by ± the 50 Lbs/SY tolerance of the spec from the target, then you will
have the shy or plus area isolated.
You have isolated the areas that are low/high on the road report.
Now calculate the overall spread rate for the area and tonnage for the total course of
pavement thickness (See example below):
Thickness
1.5 ”
1.5 “
3.0 “
Target
- 25
#/SY
140
140
Start
Paving
@ sta.
13+98
12+50
End
Paving
@ sta.
17+80
21+88
50′
Each
side
100
100
Length
(Ft.)
Width
(Ft.)
Tons
Deduct
165
165
Target
+ 25
#/SY
190
190
482
1,038
11
11
48.5
N/A
330
380
280
13+98
17+80
100
482
11
48.5
Lift
Actual
Spread
Target
1
2
133
145
278
Now stack the two lifts
133
+ 145
278 Lbs/SY
Compare the Actual Spread Rate for 3 inches (133 + 145 =278)
To the Target for 3 inch Lift (165 + 165 = 330) Lbs/SY.
Note: The minimum would be 330 – 50 = 280 Lbs/SY,
The maximum would be 330 + 50 = 380 Lbs/SY.
The Actual total of 278 is less than the minimum of 280.
The total lifts (thickness in this area), is shy but you have isolated the shy area to the 1st 1.5” lift.
You would remove & replace the area in question:
(482 Ft. X 11 Ft.)÷ 9 = 589 SY (at no cost to the Department)
11-4-8
Or at the Engineer’s option, you would leave the material in place with a deduction based on
Section 330-9.5.2 Reduction in Pay Item Quantity:
(Tons = L X W X t X Gmm X 0.0024);
In this example the Gmm = 2.54 & we know the thickness to be 1.5”, the deduction will be:
482 X 11 X 1.5 X 2.54 X 0.0024 = 48.5 Tons
Note: in this example, the spread rate in this area is 133 Lbs/SY which is 32 Lbs/SY less than
Target (165 Lbs/SY), so the Contractor would remove ½ “ depth of this pavement and replace
with a 1” thick matt to be in tolerance. (110Lbs/SY the least you can place because of gradation
thickness) and be within tolerance of 158 Lbs/SY (133 Lbs/SY shy – ½ inch thick or 55 Lbs/SY =
78 Lbs/SY thickness left after the Contractor removes a ½ inch), and when he places a 1 inch
thick pavement = 110 Lbs/SY + 78 Lbs/SY = 188 Lbs/SY which is within tolerance (+25 of Target
of 165 = 190).
SINGLE LAYER EXAMPLE: What about Friction Course?
Example (2):
FC-6: SP-12.5 @ 1.5” thick. The Target is 160 Lbs/SY. What is the overall spread rate?
This example shows all sections marked in yellow are over the maximum of + 25 Lbs/SY
In this case the overall spread rate adds up to 169 Lbs/SY, and the Target is 160 Lbs/SY for 1.5″
FC-6.
Intended
Use
FC-6
(12.5)
Rubber
Waste
Pay
Item
Number
337-7-6
Previous
Total
(Tons)
6,000
LOT
Total
(Tons)
1,223.52
Cumulative
Total
(Tons)
7,223.52
Previous
Total
(SY)
71,006.28
LOT
Total
SY
14,654.19
Cumulative
Total (SY)
Overall
Lbs/SY
85,660.47
169
176.9
9.00
185.9
45.34
0.00
45.34
160 + 25 = 185 Lbs/SY is maximum spread.
Since this is Friction Course, and you only have one layer, you would take the Cumulative Tons
and Area to get the overall spread.
The cumulative overall spread rate = (Cumulative Tons x 2000 Lbs/Ton) ÷ Cumulative Area (SY)
= (7,223.53 X 2000) ÷ 85,660.47
= 169 Lbs/SY
Therefore 169 Lbs/SY is within tolerance of ± 25 Lbs/SY (185 – 169 = 16 < ±25) and no action is
required.
You must remember that this is tied to 330-2, monitoring the mix at a minimum of 200 tons,
but it is also based on the overall thickness for the total course.
11-4-9
If one line of the road report is ± 25 Lbs/SY off from the design thickness for pavement less than
2 ½ inches or ± 50 Lbs/SY for a design thickness of 2 ½ inches or more (per Table 330-3 on page
1) and the overall spread reflected that it was out of tolerance for the design thickness, then
the entire area that was isolated on the road report plus 50 feet each side would be removed
and replaced, or left in place at no pay.
11-4-10
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
ATTACHMENT 11-1-2
LOT SUBMITTAL PACKAGE
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
ATTACHMENT 11-1-2a
COMPUTER INVOICES FOR ASPHALTIC CONCRETE
This is an example of the Summary of Quantities for Asphalt Concrete sheet. The asphalt tickets
are to be collected by the Contractor’s Quality Control Technician and a cover sheet filled out for
the day’s production. It lists project ID, type of material, date, design mix number, total number of
tickets, total number of tons, how many tons were used on each pay item, Sample No’s or PC
Sample, how much waste there was and who the inspector was. Under Material Disposition:
Rejected: Tons of asphalt when Temperature is too hot or too cold and therefore the truck is
rejected.
Waste: Tonnage in truck, usually the last truck, that some of the asphalt will be used, but not all
and therefore, the unused portion is waste. The QC manager and/or the VT technician are not
required to send the truck back to the plant for weighing the asphalt quantity that is waste. They
should estimate the amount left in the truck based on (1) the spread rate on the project, or based
on (2) visual inspection. Example (1): last load = 21.35 Tons (from Ticket); Spread rate on the
project =75 Lbs/SY. You will know the length and the width to come up with the paved area
= 230 SY (for example). Tons Used = Spread Rate (Lbs/SY) X Area Paved (SY)
2000 Lbs/Tons
= (75 Lbs/SY X 230 SY)÷ 2000 Lbs/Tons = 8.63 Tons
Tons Waste
= 21.35 – 8.63 = 12.72 Tons “Waste”
Or (2) a visual inspection of the remaining asphalt in the truck could be determined to the nearest ¼
of a truck load. Either way is sufficient, since there shouldn’t be that much of a difference. These
two methods would consume less time and money for both parties.
No Pay: is when asphalt is included in the pay item such as curb pad, MOT repair, etc. It is very
Attachment
11-1-2b
important that you read your contract and
know which
of these pay items will not be included.
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
PAY FACTOR WORKSHEET
This is an example of a composite pay factor worksheet. The Contractor’s test results for each
sublot are input into the spreadsheet. These results are for AC content, gradation, air voids and
density.
The Verification Technician (VT) tests one predetermined sublot, if verified, the composite pay
factor is the % pay for the entire verified lot. If the sublot doesn’t verify, the verification technician
tests the remaining sublots. If they compare, the whole lot is considered verified. If one more
sublot does not verify, the whole lot goes to resolution.
The CPF provided by the VT, once verified by the PA, will need to be paid on the next Progress
Estimate as a Line Item Adjustment.
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
ATTACHMENT 11-1-2c
ASPHALT ROADWAY – VERIFICATION REPORT
This is an Example of an Asphalt Roadway Verification Report.
The Verification Technician verifies spread rate, temperature and bituminous materials.
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
ATTACHMENT 11-1-2d
ASPHALT ROADWAY – DAILY REPORT OF QUALITY CONTROL
This is the Asphalt Roadway – Daily Report of Quality Control.
It shows Lot 1 and sublot 1.
It shows the Tonnage used, square yards calculated, the spread rates on each sublot. It
gives the Average Spread Rate for this lot.
It shows the spread rate for the tack coat.
Total Tons used on this lot and the accumulative tons used so far, the total square yards,
Temperature, etc.
Communication between the plant and road is the key to good quality control by the
Contractor.
Topic No.: 700-000-000
Construction Project Administration Manual
Asphalt
Effective July 1, 2002
Revision Date: September 3, 2013
ATTACHMENT 11-1-2e
ASPHALT ROADWAY – DAILY REPORT OF QUALITY CONTROL(Continued)
Download