How To Concrete Unlike the Roman recipe, a modern concrete mix typically consists of 4 parts aggregate (small stones), 3 parts washed sand and 1 part cement. Because of the weight of the materials, all but the smallest of quantities are usually mixed in a cement mixer which can be hired for short periods. …
What is Concrete Cancer? As the name implies – concrete cancer is a serious and wide spread problem where the expansion of oxides in reinforcing steel or rebar causes structural steel to expand up to eight times it’s original size, forcing concrete to delaminate. This unwelcome problem results in spalling where the concrete initially cracks, …