We are in the process of monitoring the installation of approximately one mile of 18" Reinforced Concrete Pipe for storm drain purposes along a major road improvement project. The pipe will have 5 feet to 10 feet of cover. The contractor originally intended to use a one-half sack or better...
Recently, on a 50%R.H. day, Temp of 75 deg. F, concrete trucks arrived with susicious consistency. The maximum allowable slump for the prduct code as submitted for approval was 5". Approx. 1 cy of concrete was discharged onto the ground, and a sample was taken for a slump test. The...
