National Master Specification (NMS)
January 2011
Publisher: Spex.ca
Section 31 00 00.01
EARTHWORK - SHORT FORM
Page 1
Approved: 2010-12-31
Part 1
General
1.1
RELATED REQUIREMENTS
.1
1.2
Section [___].
REFERENCES
.1
CSA International
.1
.2
.2
Ontario Provincial Standard Specifications (OPSS)/Ontario Ministry of Transportation
.1
.2
1.3
CSA A23.1/A23.2, Concrete Materials and Methods of Concrete
Construction/Test Methods and Standard Practices for Concrete.
CSA A3000, Cementitious Materials Compendium.
OPSS 1004, Material Specification for Aggregates - Miscellaneous.
OPSS 1010, Material Specification for Aggregates - Base, Subbase, Select
Subgrade, and Backfill Material.
ADMINISTRATIVE REQUIREMENTS
.1
Co-ordination: arrange with authority having jurisdiction for relocation of buried services
that interfere with execution of work.
.1
1.4
Pay costs of relocating services.
ACTION AND INFORMATIONAL SUBMITTALS
.1
Submit in accordance with Section 01 33 00 - Submittal Procedures.
.2
Site Quality Control Submittals: submit in accordance with Section 1 45 00 - Quality
Control].
.1
Submit testing results and report as described in PART 3 - FIELD QUALITY
CONTROL.
Part 2
Products
2.1
MATERIALS
.1
Granular A, B Type II to OPSS 1010.
Part 3
Execution
3.1
EXAMINATION
.1
Evaluation and Assessment:
.1
Before commencing work establish locations of buried services on and adjacent
to site.
National Master Specification (NMS)
January 2011
Publisher: Spex.ca
3.2
Section 31 00 00.01
EARTHWORK - SHORT FORM
Page 2
PREPARATION
.1
Temporary erosion and sedimentation control:
.1
.2
.3
.2
Protection of in-place conditions:
.1
.2
.3
.4
.3
Protect excavations from freezing.
Keep excavations clean, free of standing water, and loose soil.
Protect natural and man-made features required to remain undisturbed. Unless
otherwise indicated or located in an area to be occupied by new construction,
protect existing trees from damage.
Protect buried services that are required to remain undisturbed.
Removal:
.1
.2
3.3
Provide temporary erosion and sedimentation control measures to prevent soil
erosion and discharge of soil-bearing water runoff or airborne dust to adjacent
properties and walkways, according to requirements of authorities having
jurisdiction.
Inspect, repair, and maintain erosion and sedimentation control measures during
construction until permanent vegetation has been established.
Remove erosion and sedimentation controls and restore and stabilize areas
disturbed during removal.
Remove trees, stumps, logs, brush, shrubs, bushes, vines, undergrowth, rotten
wood, dead plant material, exposed boulders and debris within areas designated
on drawings.
Remove stumps and tree roots below footings, slabs, and paving, and to 600 mm
below finished grade elsewhere.
EXCAVATION
.1
Shore and brace excavations, protect slopes and banks and perform work in accordance
with Provincial regulations.
.2
Strip topsoil over areas to be covered by new construction, over areas where grade
changes are required, and so that excavated material may be stockpiled without covering
topsoil.
.1
.3
Excavate as required to carry out work.
.1
.2
.3
.4
.4
Do not disturb soil or rock below bearing surfaces.
Notify Consultant when excavations are complete.
If bearings are unsatisfactory, additional excavation will be authorized in writing
and paid for as additional work.
Excavation taken below depths shown Consultant's written authorization to be
filled with concrete of same strength as for footings at Contractor's expense.
Excavate trenches to provide uniform continuous bearing and support for 150 mm
thickness of pipe bedding material on solid and undisturbed ground.
.1
.5
Stockpile topsoil on site for later use.
Trench widths below point 150 mm above pipe not to exceed diameter of pipe
plus 600 mm.
Excavate for slabs and paving to subgrade levels.
National Master Specification (NMS)
January 2011
Publisher: Spex.ca
.1
3.4
Section 31 00 00.01
EARTHWORK - SHORT FORM
Page 3
In addition, remove all topsoil, organic matter, debris and other loose and
harmful matter encountered at subgrade level.
FIELD QUALITY CONTROL
.1
Testing of materials and compaction of backfill will be carried out by testing laboratory
designated by Consultant.
.2
Not later than 48 hours before backfilling or filling with approved material, notify
Consultant to allow compaction tests to be carried out by designated testing agency.
3.5
BACKFILLING
.1
Remove snow, ice, construction debris, organic soil and standing water from spaces to be
filled.
.2
Lateral support: maintain even levels of backfill around structures as work progresses, to
equalize earth pressures.
.3
Compaction of subgrade: compact existing subgrade under walks, paving, and slabs on
grade, to same compaction as fill.
.1
.4
Fill excavated areas with selected subgrade material compacted as specified for
fill.
Placing:
.1
Place backfill, fill and base course material in 150 mm lifts: add water as
required to achieve specified density.
.5
Under seeded and sodded areas: use site excavated material to bottom of topsoil except in
trenches and within 600 mm of foundations.
.6
Against foundations (except as applicable to trenches and under slabs and paving):
excavated material or imported material with no stones larger than 200 mm diameter
within 600 mm of structures.
3.6
GRADING
.1
Grade so that water will drain away from buildings, walls and paved areas, to catch
basins and other disposal areas approved by Consultant.
.1
3.7
Grade to be gradual between finished spot elevations shown on drawings.
CLEANING
.1
Progress Cleaning: clean in accordance with Section 01 74 11 - Cleaning.
.1
.2
.2
Leave Work area clean at end of each day.
Dispose of cleared and grubbed material off site daily.
Final Cleaning: upon completion remove surplus materials, rubbish, tools and equipment
in accordance with Section 01 74 11 - Cleaning.
END OF SECTION
National Master Specification (NMS)
January 2008
Publisher: Spex.ca
Section 31 05 16
AGGREGATE MATERIALS
Page 1
Approved: 2003-12-31
Part 1
General
1.1
RELATED SECTIONS
.1
1.2
Section 01 33 00 - Submittal Procedures.
REFERENCES
.1
American Society for Testing and Materials (ASTM)
.1
ASTM D4791, Standard Test Method for Flat Particles, Elongated Particles, or
Flat and Elongated Particles in Coarse Aggregate.
Part 2
Products
2.1
MATERIALS
.1
Aggregate quality: sound, hard, durable material free from soft, thin, elongated or
laminated particles, organic material, clay lumps or minerals, or other substances that
would act in deleterious manner for use intended.
.2
Flat and elongated particles of coarse aggregate: to OPSS.
.3
Fine aggregates satisfying requirements of applicable section to be one, or blend of
following:
.1
.2
.3
.4
Natural sand.
Manufactured sand.
Screenings produced in crushing of quarried rock, boulders, gravel or slag.
Coarse aggregates satisfying requirements of applicable section to be one of or blend of
following:
.1
.2
.3
Crushed rock.
Gravel [and crushed gravel] composed of naturally formed particles of stone.
Light weight aggregate, including slag and expanded shale.
Part 3
Execution
3.1
PREPARATION
.1
Topsoil stripping
.1
.2
.3
Do not handle topsoil while in wet or frozen condition or in any manner in which
soil structure is adversely affected.
Begin topsoil stripping of areas after area has been cleared of brush, trees and
grasses and removed from site.
Strip topsoil to depths as indicated in geotechnical report.
National Master Specification (NMS)
January 2008
Publisher: Spex.ca
.4
.2
Handle and transport aggregates to avoid segregation, contamination and
degradation.
Stockpiling
.1
.2
.3
.4
.5
.6
.7
.8
3.2
Stockpile in locations as directed by Engineer. Stockpile height not to exceed 2
m.
Handling
.1
.3
Section 31 05 16
AGGREGATE MATERIALS
Page 2
Stockpile aggregates on site in locations as indicated unless directed otherwise by
Engineer. Do not stockpile on completed pavement surfaces.
Stockpile aggregates in sufficient quantities to meet Project schedules.
Stockpiling sites to be level, well drained, and of adequate bearing capacity and
stability to support stockpiled materials and handling equipment.
Separate different aggregates by strong, full depth bulkheads, or stockpile far
enough apart to prevent intermixing.
Do not use intermixed or contaminated materials. Remove and dispose of
rejected materials as directed by Engineer.
Uniformly spot-dump aggregates delivered to stockpile in trucks and build up
stockpile as specified.
Do not cone piles or spill material over edges of piles.
During winter operations, prevent ice and snow from becoming mixed into
stockpile or in material being removed from stockpile.
CLEANING
.1
Leave aggregate stockpile site in tidy, well drained condition, free of standing surface
water.
.2
Leave any unused aggregates in neat compact stockpiles as directed by Engineer.
END OF SECTION
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 11 00
CLEARING AND GRUBBING
Page 1
Approved: 2006-06-30
Part 1
General
1.1
RELATED SECTIONS
.1
1.2
[___].
DEFINITIONS
.1
Clearing consists of cutting off trees and brush vegetative growth to not more than
specified height above ground and disposing of felled trees, previously uprooted trees and
stumps, and surface debris.
.2
Close-cut clearing consists of cutting off standing trees, brush, scrub, roots, stumps and
embedded logs, removing at, or close to, existing grade and disposing of fallen timber
and surface debris.
.3
Clearing isolated trees consists of cutting off to not more than specified height above
ground of designated trees, and disposing of felled trees and debris.
.4
Underbrush clearing consists of removal from treed areas of undergrowth, deadwood, and
trees smaller than 50 mm trunk diameter and disposing of fallen timber and surface
debris.
.5
Grubbing consists of excavation and disposal of stumps and roots to not less than
specified depth below existing ground surface.
1.3
STORAGE AND PROTECTION
.1
Prevent damage to natural features, bench marks, existing buildings, existing pavement,
utility lines, site appurtenances, water courses which are to remain.
.1
.2
Repair damaged items to approval of Engineer.
Replace trees designated to remain, if damaged, as directed by Engineer.
Part 2
Products
2.1
MATERIALS
.1
Soil Material for Fill:
.1
.2
Excavated soil material: free of debris, roots, wood, scrap material, vegetable
matter, refuse, soft unsound particles, deleterious, or objectionable materials.
Remove and store soil material for reuse.
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 11 00
CLEARING AND GRUBBING
Page 2
Part 3
Execution
3.1
TEMPORARY EROSION AND SEDIMENTATION CONTROL
.1
Provide temporary erosion and sedimentation control measures to prevent soil erosion
and discharge of soil-bearing water runoff or airborne dust to adjacent properties and
walkways, according to requirements of authorities having jurisdiction.
.2
Inspect, repair, and maintain erosion and sedimentation control measures during
construction until permanent vegetation has been established.
.3
Remove erosion and sedimentation controls and restore and stabilize areas disturbed
during removal.
3.2
PREPARATION
.1
Locate and protect utility lines: preserve in operating condition active utilities traversing
site.
.1
Notify Engineer immediately of damage to or when unknown existing utility
lines are encountered.
.2
Notify utility authorities before starting clearing and grubbing.
.3
Keep roads and walks free of dirt and debris.
3.3
CLEARING
.1
Clearing includes cutting of trees into sections and satisfactory disposal of trees and other
vegetation designated for removal, including downed timber, brush, rubbish occurring
within cleared areas.
.2
Clear as indicated by cutting at height of not more than 300mm above ground. In areas to
be subsequently grubbed, height of stumps left from clearing operations to be not more
than 1000mm above ground surface.
.3
Cut off unsound branches on trees designated to remain as directed by Engineer.
3.4
CLOSE CUT CLEARING
.1
Close cut clearing to ground level.
.2
Cut off unsound branches on trees designated to remain as directed by Engineer.
3.5
UNDERBRUSH CLEARING
.1
3.6
Clear underbrush from areas as indicated at ground level.
GRUBBING
.1
Remove and dispose of roots larger than 7.5 cm in diameter, matted roots, and designated
stumps from indicated grubbing areas.
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 11 00
CLEARING AND GRUBBING
Page 3
.2
Grub out stumps and roots to not less than 300 mm below ground surface.
.3
Grub out visible rock fragments and boulders, greater than 1000 mm in greatest
dimension.
.4
Fill depressions made by grubbing with suitable material and to make new surface
conform with existing adjacent surface of ground.
3.7
REMOVAL AND DISPOSAL
.1
3.8
Remove cleared and grubbed materials off site.
FINISHED SURFACE
.1
3.9
Leave ground surface in condition suitable for stripping of topsoil to approval of
Engineer
CLEANING
.1
Proceed in accordance with Section 01 74 11 - Cleaning.
.2
On completion and verification of performance of installation, remove surplus materials,
excess materials, rubbish, tools and equipment.
END OF SECTION
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 14 13
SOIL STRIPPING AND STOCKPILING
Page 1
Approved: 2006-06-30
Part 1
General
1.1
RELATED SECTIONS
.1
[___].
Part 2
Products
2.1
NOT USED
.1
Not Used.
Part 3
Execution
3.1
TEMPORARY EROSION AND SEDIMENTATION CONTROL
.1
Provide temporary erosion and sedimentation control measures to prevent soil erosion
and discharge of soil-bearing water runoff or airborne dust to adjacent properties and
walkways, according to requirements of authorities having jurisdiction.
.2
Inspect, repair, and maintain erosion and sedimentation control measures during
construction until permanent vegetation has been established.
.3
Remove erosion and sedimentation controls and restore and stabilize areas disturbed
during removal.
3.2
STRIPPING OF TOPSOIL
.1
Ensure that procedures are conducted in accordance with applicable Provincial and
Municipal requirements.
.2
Remove topsoil before construction procedures commence to avoid compaction of
topsoil.
.3
Handle topsoil only when it is dry and warm.
.4
Remove vegetation from targeted areas by non-chemical means and dispose of stripped
vegetation by disposal.
.5
Remove brush from targeted area by non-chemical means and dispose of through
disposal.
.6
Strip topsoil to depths as indicated.
.1
.7
Avoid mixing topsoil with subsoil.
Pile topsoil in berms in locations as directed by Engineer.
.1
Stockpile height not to exceed 2.5 - 3m.
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 14 13
SOIL STRIPPING AND STOCKPILING
Page 2
.8
Dispose of unused topsoil off-site.
.9
Protect stockpiles from contamination and compaction.
3.3
PREPARATION OF GRADE
.1
Verify that grades are correct and notify Engineer if discrepancies occur. do not begin
work until instructed by Engineer.
.1
.2
3.4
Grade area only when soil is dry to lessen soil compaction.
Grade soil establishing natural contours and eliminating uneven areas and low
spots, ensuring positive drainage.
PLACING OF TOPSOIL
.1
Spread topsoil during dry conditions in uniform layers not exceeding 200 mm, over
unfrozen subgrade free of standing water.
.2
Establish traffic patterns for equipment to prevent driving on topsoil after it has been
spread to avoid compaction.
.3
Cultivate soil following spreading procedures.
3.5
CLEANING
.1
Proceed in accordance with Section 01 74 11 - Cleaning.
.2
On completion and verification of performance of installation, remove surplus materials,
excess materials, rubbish, tools and equipment.
END OF SECTION
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
Section 31 22 13
ROUGH GRADING
Page 1
Approved: 2000-12-05
Part 1
General
1.1
RELATED SECTIONS
.1
Section 31 11 00 - Clearing and Grubbing.
.2
Section 31 23 33.01 - Excavation, Trenching and Backfilling.
1.2
EXISTING CONDITIONS
.1
Known underground and surface utility lines and buried objects are as indicated on site
plan.
.2
Refer to dewatering in Section 31 23 33.01 - Excavating Trenching and Backfilling.
1.3
PROTECTION
.1
Protect and/or transplant existing bench marks, buildings, pavement, surface or
underground utility lines which are to remain. If damaged, restore to original or better
condition unless directed otherwise.
.2
Maintain access roads to prevent accumulation of construction related debris on roads.
Part 2
Products
2.1
MATERIALS
.1
Excavated or graded material existing on site may be suitable to use as fill for grading
work if approved by Engineer.
Part 3
Execution
3.1
GRADING
.1
Rough grade to levels, profiles, and contours allowing for surface treatment as indicated.
.2
Slope rough grade away from building as indicated.
.3
Grade ditches to depth as indicated.
.4
Prior to placing fill over existing ground, scarify surface to depth of 150 mm. Maintain
fill and existing surface at approximately same moisture content to facilitate bonding.
.5
Compact filled and disturbed areas to corrected maximum dry density, as follows:
.1
.6
95 % under paved and walk areas.
Do not disturb soil within branch spread of trees or shrubs to remain.
National Master Specification (NMS)
April 2007
Publisher: Spex.ca
3.2
Section 31 22 13
ROUGH GRADING
Page 2
SURPLUS MATERIAL
.1
Remove surplus material and material unsuitable for fill, grading or landscaping off site.
END OF SECTION
National Master Specification (NMS)
July 2011
Publisher: Spex.ca
Section 31 23 33.01
EXCAVATING, TRENCHING AND BACKFILLING
Page 1
Approved: 2006-09-30
Part 1
General
1.1
RELATED REQUIREMENTS
.1
Section [___].
1.2
REFERENCES
1.3
DEFINITIONS
.1
Excavation classes: two classes of excavation will be recognized; common excavation
and rock excavation.
.1
.2
Rock : solid material in excess of 1.00 m ; and which cannot be removed by
means of heavy duty mechanical excavating equipment. Frozen material not
classified as rock.
Common excavation: excavation of materials of whatever nature, which are not
included under definitions of rock excavation.
.2
Unclassified excavation: excavation of deposits of whatever character encountered in
Work.
.3
Topsoil:
.1
.2
Material capable of supporting good vegetative growth and suitable for use in top
dressing, landscaping and seeding.
Material reasonably free from subsoil, clay lumps, brush, objectionable weeds,
and other litter, and free from cobbles, stumps, roots, and other objectionable
material larger than 25 millimeters in any dimension.
.4
Waste material: excavated material unsuitable for use in Work or surplus to requirements.
.5
Borrow material: material obtained from locations outside area to be graded, and required
for construction of fill areas or for other portions of Work.
.6
Recycled fill material: material, considered inert, obtained from alternate sources and
engineered to meet requirements of fill areas.
.7
Unsuitable materials:
.1
.2
.8
Weak, chemically unstable, and compressible materials.
Frost susceptible materials:
.1
Fine grained soils with plasticity index less than 10 when tested to
ASTM D4318,
.2
Coarse grained soils containing more than 20 % by mass passing 0.075
mm sieve.
Unshrinkable fill: very weak mixture of cement, concrete aggregates and water that
resists settlement when placed in utility trenches, and capable of being readily excavated.
National Master Specification (NMS)
July 2011
Publisher: Spex.ca
1.4
Section 31 23 33.01
EXCAVATING, TRENCHING AND BACKFILLING
Page 2
EXISTING CONDITIONS
.1
Buried services:
.1
.2
.3
.4
.5
.6
.7
.2
Before commencing work establish location of buried services on and adjacent to
site.
Arrange with appropriate authority for relocation of buried services that interfere
with execution of work: pay costs of relocating services.
Size, depth and location of existing utilities and structures as indicated are for
guidance only. Completeness and accuracy are not guaranteed.
Prior to beginning excavation Work, notify applicable authorities having
jurisdiction establish location and state of use of buried utilities and structures.
authorities having jurisdiction to clearly mark such locations to prevent
disturbance during Work.
Maintain and protect from damage, water, sewer, gas, electric, telephone and
other utilities and structures encountered.
Record location of maintained, re-routed and abandoned underground lines.
Confirm locations of recent excavations adjacent to area of excavation.
Existing buildings and surface features:
.1
.2
Protect existing buildings and surface features from damage while Work is in
progress. In event of damage, immediately make repair as directed by Consultant
Where required for excavation, cut roots or branches.
Part 2
Products
2.1
MATERIALS
.1
Type 1 and Type 2 fill: properties to Section 31 05 16 - Aggregate Materials and the
following requirements:
.1
.2
Crushed, pit run or screened stone, gravel or sand.
Gradations to be within limits specified when compared to OPSS standards.
Part 3
Execution
3.1
TEMPORARY EROSION AND SEDIMENTATION CONTROL
.1
Provide temporary erosion and sedimentation control measures to prevent soil erosion
and discharge of soil-bearing water runoff or airborne dust to adjacent properties and
walkways, according to requirements of authorities having jurisdiction.
.2
Inspect, repair, and maintain erosion and sedimentation control measures during
construction until permanent vegetation has been established.
.3
Remove erosion and sedimentation controls and restore and stabilize areas disturbed
during removal.
National Master Specification (NMS)
July 2011
Publisher: Spex.ca
3.2
Section 31 23 33.01
EXCAVATING, TRENCHING AND BACKFILLING
Page 3
SITE PREPARATION
.1
Remove obstructions, ice and snow, from surfaces to be excavated within limits
indicated.
.2
Cut pavement or sidewalk neatly along limits of proposed excavation in order that
surface may break evenly and cleanly.
3.3
PREPARATION/PROTECTION
.1
Protect existing features in accordance with Section 01 56 00 - Temporary Barriers and
Enclosures and applicable local regulations.
.2
Keep excavations clean, free of standing water, and loose soil.
.3
Protect natural and man-made features required to remain undisturbed. Unless otherwise
indicated or located in an area to be occupied by new construction, protect existing trees
from damage.
.4
Protect buried services that are required to remain undisturbed.
3.4
COFFERDAMS, SHORING, BRACING AND UNDERPINNING
.1
3.5
Maintain sides and slopes of excavations in safe condition by appropriate methods and in
accordance with Health and Safety Act
DEWATERING AND HEAVE PREVENTION
.1
Keep excavations free of water while Work is in progress.
.2
Avoid excavation below groundwater table if quick condition or heave is likely to occur.
.1
Prevent piping or bottom heave of excavations by groundwater lowering, sheet
pile cut-offs, or other means.
.3
Protect open excavations against flooding and damage due to surface run-off.
.4
Dispose of water to approved runoff areas and in manner not detrimental to public and
private property, or portion of Work completed or under construction.
.1
3.6
Provide and maintain temporary drainage ditches and other diversions outside of
excavation limits.
BEDDING AND SURROUND OF UNDERGROUND SERVICES
.1
Place and compact granular material for bedding and surround of underground services.
.2
Place bedding and surround material in unfrozen condition.
3.7
BACKFILLING
.1
Do not proceed with backfilling operations until completion of following:
.1
Consultant has inspected and approved installations.
National Master Specification (NMS)
July 2011
Publisher: Spex.ca
.2
.3
.4
.5
Section 31 23 33.01
EXCAVATING, TRENCHING AND BACKFILLING
Page 4
Consultant has inspected and approved of construction below finish grade.
Inspection, testing, approval, and recording location of underground utilities.
Removal of concrete formwork.
Removal of shoring and bracing; backfilling of voids with satisfactory soil
material.
.2
Areas to be backfilled to be free from debris, snow, ice, water and frozen ground.
.3
Do not use backfill material which is frozen or contains ice, snow or debris.
.4
Place backfill material in uniform layers not exceeding 200 mm compacted thickness up
to grades indicated. Compact each layer before placing succeeding layer.
.5
Backfilling around installations:
.1
.2
.3
3.8
Place bedding and surround material as specified elsewhere.
Do not backfill around or over cast-in-place concrete within 24 hours after
placing of concrete.
Place layers simultaneously on both sides of installed Work to equalize loading.
RESTORATION
.1
Reinstate lawns to elevation which existed before excavation.
.2
Reinstate pavements disturbed by excavation to thickness, structure and elevation which
existed before excavation.
.3
Clean and reinstate areas affected by Work as directed by Consultant.
.4
Protect newly graded areas from traffic and erosion and maintain free of trash or debris.
END OF SECTION