Test Method
Physical Test
Test Value
Specification
after aging 48 hours
strength)
ASTM D 572
Test Method
Physical Test
Test Value
Specification
Tensile Strength
2,000 psi (minimum)
ASTM D 412
Elongation at Break
450 % (minimum)
ASTM D 412
300 % Modulus
900 psi (minimum)
ASTM D 412
Shore Type A
45 to 55 (50 Average)
ASTM D 2240
Water Absorption
5 % by Weight (maximum)
ASTM D 471
Compression Set
30 % (maximum)
ASTM D 395
Tensile Strength
80 % (minimum of tensile
after aging 48 hours
strength)
ASTM D 572
2.2.3
Plastic Shims
Plastic shims for shimming precast concrete units shall conform to ASTM D
4101, polypropylene material, of the widths and lengths as shown on the
contract drawings.
[2.2.4
Expansion Joint Filler Strips, Premolded
**************************************************************************
NOTE: Delete this paragraph if Section 03151A
EXPANSION, CONTRACTION AND CONSTRUCTION JOINTS IN
CONCRETE is used.
**************************************************************************
Expansion joint filler strips shall meet the requirements specified in
Section 03151A EXPANSION, CONTRACTION AND CONSTRUCTION JOINTS IN CONCRETE.
]2.3
MIXTURE PROPORTIONING
2.3.1
Cement-Based Concrete
Mixes for cement-based concrete shall be in accordance with paragraph
DESIGN REQUIREMENTS and the applicable provisions of Section [03300A
CAST-IN-PLACE STRUCTURAL CONCRETE][03301A CAST-IN-PLACE STRUCTURAL CONCRETE
FOR CIVIL WORKS][Section 03307 CONCRETE FOR MINOR STRUCTURES]. Approved
batch tickets shall be furnished for each load of ready-mixed concrete.
2.3.2
Fiber-Reinforced Concrete
Mixtures for fiber-reinforced concrete shall be in accordance with ASTM C
1116, paragraph DESIGN REQUIREMENTS and the applicable provisions of
Section [03300A CAST-IN-PLACE STRUCTURAL CONCRETE][03301A CAST-IN-PLACE
STRUCTURAL CONCRETE FOR CIVIL WORKS][Section 03307 CONCRETE FOR MINOR
STRUCTURES].
2.3.3
Dry-Pack Mortar
**************************************************************************
NOTE: For severe conditions, the water-cementitious
materials ratio may need to be 0.40 or less.
Dry-pack mortar may be polymer-modified when
SECTION 03931
Page 45