1. Obtain a representative concrete sample from the revolving drum truck mixer. 2. Using a scoop, place concrete in the cylinder molds. For 6 by 12 inch molds, place in three equal layers (1/3 volume ...

Concrete is one of the most widely used construction materials, but its production is a significant source of carbon emissions due to the energy-intensive process of cement manufacturing. As the ...

Researchers have developed a process for turning the solid waste products of coal power plants into a useful ingredient that could improve properties of concrete. Coal ash is the less notorious ...