SECTION 95
EPOXY
746
95-2.11 EPOXY RESIN ADHESIVE FOR INJECTION GROUTING OF
PORTLAND CEMENT CONCRETE PAVEMENTS (STATE
SPECIFICATION 8040-01F-02)
Directions for Use:
• Both components and the mixed material shall contain no solvents. The
mixing ratio of the components in terms of volume and mass shall be clearly stated.
The material shall be suitable for use in the mixing equipment used by the
applicator. Epoxy adhesive samples shall be furnished to the Engineer for testing at
least 12 days before the expected time of use.
Characteristics of Adhesive:
Testa
California
Test
Requirement
Brookfield Viscosity, No. 3
Spindle at 20 rpm, Pa·s at 25°C 434, Part 5
0.9 max.
Gel time, minutes
434, Part 1
2 to 15
Slant Shear Strength on Dry
Concrete
434, Part 8
b
41.4 MPa minimum
after 4 days of cure in
air at 25°C ±1°C
Slant Shear Strength on Wet
Concrete
434, Part 8
b
24.1 MPa minimum
after 4 days of cure in
air at 25°C ±1°C
Tensile Strength
434, Part 11, except
test after 4 days of
cure at 25°C ±1°C
31.0 MPa min.
Elongation
434, Part 11, except
test after 4 days of
cure at 25°C ±1°C
10% max.
a The mixing ratio used will be that recommended by the manufacturer.
b For slant shear strength on concrete, delete Sections B-1 and B-5 of California Test 434, Part 8.
For dry concrete, use Step "2" only. For wet concrete, use both Steps "1" & "2":
1 Soak blocks in water for 24 hours at 25°C ±1°C. Remove and wipe off excess water.
2 Mix epoxy as described in California Test 434, Part 3, B and apply a coat
approximately 250 µm thick to each diagonal surface. Place four 3-mm square pieces
of shim stock 305 µm thick on one block to control final film thickness. Before
pressing the coated surfaces together, leave the blocks so that the coated surfaces are
horizontal until the epoxy reacts slightly to prevent excessive flow.



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