Depending on the structural design requirements of a building, the grade of concrete may vary. Concrete pounds per square inch (PSI) plays a significant role in determining the concrete grades that ...

Maturity and compressive strength of concrete is tested through both destructive and non-destructive methods. Destructive test involve damaging some of an element or the structure. Some would like to ...

In the summer of 1981 a friend called me to ask if I would be interested in moonlighting to help him install floor sealer for a company in California. Even though I worked 18 hours that day, I decided ...