Answer: Simply put, water plus aggregates (gravel, sand, stone), plus cement (such as Portland cement) start a chain of chemical reactions called hydration, which raises the concrete temperature.

Placing concrete in hot weather necessitates extra precautions to ensure that the concrete sets properly and gains strength at a stable rate. Placing concrete in hot weather necessitates extra ...

As a contractor, you’re likely used to ordering, placing, and curing concrete in hot weather. If precautions are not taken, this ambient environment can have an adverse effect on water demand, slump ...

The American Concrete Institute released a new publication: ACI 308R-16 Guide to External Curing of Concrete. This guide reviews and describes practices, procedures, materials, and monitoring methods ...

Drexel researchers are recycling coal ash, a waste product from coal power plants, to make a porous, lightweight aggregate that can be used as a concrete additive to aid the hardening process. Coal ...