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SECTION 04060
MASONRY MORTAR
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Copyright 2013 ARCAT, Inc. - All rights reserved
PART 1 GENERAL
1.1
1.2
SECTION INCLUDES
A.
Mortar for masonry specified in other sections.
B.
Stucco mix.
C.
Surface bonding cement.
RELATED SECTIONS
A.
1.3
Section 04810 - Unit Masonry Assemblies.
REFERENCES
A.
ACI 201.1R - Guide for Making a Condition Survey of Concrete in Service.
B.
ACI 308 - Standard Practice for Curing Concrete.
C.
ACI 524R - Guide to Portland Cement Plastering.
D.
ACI 530/ASCE 5/TMS 402 - Building Code Requirements for Masonry Structures.
E.
ASTM C 91 - Standard Specification for Masonry Cement.
F.
ASTM C 144 - Standard Specification for Aggregate for Masonry Mortar.
04060-1
1.4
1.5
O.
ASTM D 4261 - Surface Cleaning Concrete Unit Masonry for Coating.
P.
ICBO-ES - Evaluation Report 3759: Easy Spread Plasticizer for Mortar; 1998.
Q.
ICRI Guideline No. 03730 - Surface Preparation Guidelines for Repair of
Deteriorated Concrete Resulting from Reinforcing Steel Oxidation.
R.
ICRI Guideline No. 03731 - Selecting Application Methods for the Repair of
Concrete Surfaces.
S.
ICRI Guideline No. 03732 - Selecting and Specifying Concrete Surface Preparation
for Sealers, Coatings and Polymer Overlays.
T.
NCMA TR-88 - Hot & Cold Weather Masonry Construction Manual.
SUBMITTALS
A.
Submit under provisions of Section 01300.
B.
Manufacturer's data sheets on each product to be used, including:
1.
Mixing and preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Test Reports:
1.
Submit certified test reports showing that the cementitious components of the
mortar mix comply with the specified requirements.
2.
Submit certified test report showing that the mortar complies with the
specified requirements.
DELIVERY, STORAGE, AND HANDLING
A.
Deliver mortar mix to site in sealed bags. Identify each bag with material name and
type.
PART 2 PRODUCTS
2.1
2.2
MANUFACTURERS
A.
Acceptable Manufacturer: ProSpec (formerly Bonsal branded products), which is
located at: Bonsal American 8227-C Arrowridge Blvd. ; Charlotte, NC 28273; Toll
Free Tel: 800-738-1621; Tel: 704-525-1621; Fax: 704-529-5261; Email: request info
([email protected]); Web: www.prospec.com
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of
Section 01600.
SPECIAL MORTARS
A.
Bonsal / ProSpec Historic Pointing Mortar: Factory blended mixture of graded
sands, hydrated lime and portland cement for repointing mortar joints in historic
structures.
1.
Compressive Strength: ÅSTM C 109 at 28 days, 600-725 psi (4-5 MPa).
2.
Tensile Strength: ANSI 118.1 at 28 days, 30 psi (0.2 MPa).
3.
Vapor permeable.
4.
Contains no latex or acrylic bonding agents.
04060-2
5.
2.3
STUCCO MIX
A.
2.4
2.6
Bonsal / ProSpec Historic Stucco Mix: Factory blended mixture of graded sands,
hydrated lime and Portland cement for repairing stucco in historic structures; interior
or exterior.
1.
Compressive Strength: ÅSTM C 109 at 28 days, 680-900 psi (4.7-6.2 MPa).
2.
Tensile Strength: ANSI 118.1 at 28 days, 18 psi (0.12 MPa).
3.
Vapor permeable.
4.
Contains no latex or acrylic bonding agents.
5.
Pigment: ____________.
SURFACE BONDING CEMENT
A.
2.5
Pigment: ____________.
Bonsal / ProSpec Surface Bonding Cement: Structural, fiber reinforced portland
cement based surface applied mortar for concrete block and masonry walls.
1.
Initial Set Time: ASTM C 191, 2.5 hours.
2.
Final Set Time: ASTM C 191, 4 hours.
3.
Water Retention: ÅSTM C 887 A6, 77 percent.
4.
Compressive Strength: ASTM C 109, >5800 psi (40 MPa).
5.
Flexural Strength: ÅSTM C 348, >1150 (8 MPa).
6.
Wind Driven Rain Resistance (over concrete block): Fed Spec TT-P-0035,
Excellent.
7.
Water Absorption (over concrete block): ÅSTM C 413, 5.2 to 7.4 percent by
weight.
8.
Water Vapor Transmission (over concrete block): ASTM C 355 (desiccant
method), 162 grams per meter2 in 24 hours.
9.
Freeze-Thaw Resistance (over concrete block): ÅSTM C 666, 300 cycles
(Procedure A), as follows:
a.
Durability Factor: 99 percent.
b.
Length Change: Plus 0.011 percent.
10.
Weatherability (over concrete block): ÅSTM G 23 Type F (1,000 hours),
Adhesion excellent, passed.
11.
Combustibility (over concrete block):ASTM E 136, Noncombustible.
12.
Fire/Flame Resistance (over concrete block): ASTM C 119 Fire Hose, as
follows:
a.
8 inch (20 cm) 2- hour rated block - passed 2 hours.
b.
8 inch (20 cm) 4- hour rated block - passed 4 hours.
13.
Air Transmission NCMA Test Procedure (over concrete block): Leakage rate
in cfm/100 ft2.
14.
Color: Gray.
15.
Color: White.
ACCESSORY MATERlALS
A.
Water: Clean and free from deleterious acids, alkalies, and organic matter.
B.
Admixtures: Complying with ÅSTM C 1384 or ICBO-ES Evaluation Report 3759.
C.
Integral Waterproofer:
____________.
MIXING
A.
Mixing Procedure: Mix in accordance with manufacturer's written instructions. Use
mortar within 2 hours of initial mixing.
04060-3
B.
Cold Weather: Follow National Concrete Masonry Association recommendations
for cold weather construction.
PART 3 EXECUTION
3.1
INSTALLATION
A.
3.2
See Section 04810.
FIELD QUALITY CONTROL
A.
Owner will arrange for field testing.
B.
Contractor shall arrange and pay for field testing by an acceptable testing
agency.
C.
Field Testing: In accordance with ASTM C 780 with following exception: Verify
compressive strength by obtaining minimum 20 pound (9 kg) uniform sample of dry
blend, prepare mix as specified, and test in accordance with applicable portions of
ASTM C 270 .
END OF SECTION
04060-4
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