2010 Construction and Material Specifications - Ohio Department of ...

1. Ensure that the material meets the following requirements:
Test Type 1 Type 2
Compressive Strength ASTM C 109 [2]
psi (MPa) @ 1 Hour 100 (0.7) 2000 (14)
@ 3 Hour 250 (1.7) ---
@ 24 Hours 2000 (14) 5000 (34)
@ 7 Days --- 7000 (48)
Compressive Strength ASTM C 39 [1],[2]
psi (MPa) @ 1 Hour 100 (0.7) (2000) (14)
@ 3 Hour 150 (1.0) ---
@ 24 Hours 1000 (10) 3500 (24)
@ 7 Days --- 6000 (41)
Initial Set Time (min) ASTM C 5 Minutes 10 Minutes
266 [2]
Bond Strength, ASTM C 882 [1]
psi (MPa) @ 24 Hours 1000 (7) 1000 (7)
@ 7 Days
Flexural Strength ASTM C 78
1500 (11) 1500 (11)
[1]
psi (MPa) @ 4 Hour --- 200 (1.4)
@ 3 Day 650 (4.5) 500 (3.4)
Freeze and Thaw ASTM C 666 (use either Procedure B or A) [1]
Procedure B (350 Cycles)
Durability Factor
80% 80%
Procedure A (300 Cycles)
Durability Factor
79% 79%
[1] Extend test specimens 50 percent by dry mortar weight with aggregate.
[2] Test the mortar as received with the addition of water. Ensure that the
amount of water is designated on the packing container by the
manufacturer.
695
705.21
B. Prequalify the material by placing and having the material evaluated
conforming to Supplement 1070 for 3 years. At the end of the 3 year rating the
material will meet the following criteria:
1. Percentage debonding/delamination 5%
2. Percentage spalling 5%
3. Mid panel average crack width 1/16 inch (1.6 mm) and total length of
mid panel cracks 20 feet (6.1 m) total length
4. Edge Cracking/debonding average crack width 1/16 inch (1.6 mm)
and total length of cracks 12 feet (3.6 m)
Furnish the Laboratory with a certified copy of test results from a recognized
laboratory showing compliance with the requirements of this specification for item
A. Furnish the laboratory written documentation of the method of surface
preparation and any primers, adhesives, or activators used in the field test. Those
will become requirements of the material system for subsequent approval or use. A
recognized laboratory is one that is regularly inspected by the Cement and