ASTM C-666 Freeze-Thaw Durability Test Results
(Results at 350 elapsed FT cycles) (AE = Air Entrained, Non-AE = not Air Entrained)
| Test Condition | Length Change, % | Durability Factor | ||
| Non-AE, Untreated | 0.1301 | 88.8 | ||
| Non-AE, Treated | 0.0508 | 97.8 | ||
| AE, Untreated | 0.0185 | 99.5 | ||
| AE, Treated | 0.0156 | 99.4 | ||
| Typical DOT Specification | 0.06 max | 95 min |
CreteDefender P2™ improves freeze-thaw durability in both air entrained and non-air entrained concrete, virtually eliminating damage from freeze-thaw cycles.
Percent expansion and durability factors for non-air entrained concrete untreated by CreteDefender P2 fall significantly outside acceptable ranges. CreteDefender P2 keeps both air entrained and non-air entrained concrete in the acceptable range. In the United States, state departments of transportation that have requirements for freeze-thaw durability typically specify 0.06% maximum expansion and a 95 durability factor for ASTM C-666, procedure B.
CreteDefender P2 shows no negative effect on the freeze-thaw benefits of air entrained concrete. Air entrainment, while providing excellent freeze/thaw protection, can increase exposure of concrete to damage from chloride ion penetration. CreteDefender P2 can be used on air entrained concrete to prevent damage from chlorides and other chemicals without diminishing the freeze-thaw durability provided by the air entrainment. Plus, CreteDefender P2 can provide the free-thaw durability of air entrained concrete in concrete where the distribution of air is inconsistent, or where finishing of the concrete has diminished the quality of the air entrainment at the surface.
The ASTM C-666 test was conducted by Bowser-Morner, a leading independent testing laboratory. The test was performed in accordance with ASTM C-666, procedure B, freezing in air and thawing in water. Test samples were exposed to 350 freeze-thaw cycles.