Specification

B. Store products in a dry area. Protect from direct sunlight.
C. Handle products in accordance with manufacturer’s printed recommendations.
PART 2 – PRODUCTS
2.10 MATERIALS
A. Polymer modified, shrinkage compensated, rapid setting high strength, hydraulic cement
based repair mortar. Comply with the following:
1. Manufacturer: Fastset™ Repair Mortar (#1241) as manufactured by the QUIKRETE®
Companies, One Securities Centre, 3490 Piedmont Road, NE, Suite 1300, Atlanta, GA
30305; telephone [phone].
2. Performance and Physical Properties at 73 degrees F (23ºC) and 50 percent relative humidity:
a. Compliance: ASTM C 928 R-2 specifications
b. Setting time, ASTM C 191: 20-40 minutes
c. Compressive Strength, ASTM C 109 Modified: 2000 psi (13.8 MPa) @ 3 hours,
4000 psi (27.6 MPa) @ 24 hours, 5000 psi (34.5 MPa) @ 7 days and 6000 psi
(41.4 MPa) @ 28 days
d. Slant Shear Bond Strength, ASTM C 882: 1000 psi (6.9 MPa) @ 24 hours, 1500 psi
(10.3 MPa) @ 7 days and 2500 psi (17.2 MPa) @ 28 days
e. Consistency: Gel-like
f. Unit weight lb/cu ft: ~128 lbs (2051 kg/m³)
PART 3 – EXECUTION
3.10 EXAMINATION
A. Examine substrates and conditions under which materials will be installed. Do not proceed with
installation until unsatisfactory conditions are corrected.
B. Coordinate installation with adjacent work to ensure proper sequence of construction. Protect
adjacent areas landscaping from contact due to mixing and handling of materials.
3.20 SURFACE PREPARATION:
Comply with manufacturer’s printed instructions and the following:
A. Remove all spalled and unsound concrete from area to be repaired. If rusty reinforcing
steel is present; it must be abrasive blasted to remove rust.
B. Remove enough material to completely expose reinforcing steel.
C. Large vertical or overhead patches deeper than 2” (50 mm) should contain reinforcing
steel. Additional steel should be inserted using appropriate techniques, if none is present.
D. Clean surface to be repaired of all materials including dust, oil, dirt and grease.
E. Dampen with clean water before patching and remove standing water.