How does hot weather affect the construction of RCC pavements?
There are two factors that should be considered when evaluating hot-weather construction of RCC pavements: ultimate strength and workability. Ultimate Strength. The optimal curing temperature for concrete is from 50 degrees F to 70 degrees F. When concrete is cured at temperatures above 80 degrees F the early strengths (1, 3, 7 days) are higher than concrete cured at normal temperatures. However, ultimate strength is reduced. Concrete cured at 90 to 105 degrees F will see 28 day strengths reduced 5 to 15 percent, respectively (Refs 1,2), compared to curing at 73 degrees F.
