What temperature in degrees Fahrenheit indicates the need for hot weather construction provisions for masonry?

In masonry construction, it is essential to monitor temperature conditions to ensure the materials perform optimally during installation. When the temperature reaches 100 degrees Fahrenheit, the guidelines recommend implementing hot weather construction provisions. At this temperature, the rate of moisture evaporation from the mixing water increases significantly, which can adversely affect the curing and strength of the masonry.

Using hot weather construction provisions helps manage these risks by incorporating practices such as cooling the materials before use, scheduling work during cooler parts of the day, or adding accelerators to the mix. This ensures that the masonry maintains the necessary moisture content for proper curing, ultimately enhancing the durability and performance of the final structure.

The higher temperatures, such as 105 degrees or even lower temperatures like 90 or 95 degrees, do not trigger these specific requirements according to standard masonry guidelines, as the impact on material properties and workability typically becomes significant at or above the 100-degree threshold.