Tremix concreting method
Tremix concreting method is the method of removal of surplus water from the concrete to maintain optimum water-cement ration by vacuum system. In this method, excess water is removed from fresh concrete by vacuum dewatering technique. Equipment used in tremix concreting Vacuum pump Top cover Filter pads and Power trowel Vacuum pump runs on electric motor or petrol engine and is fitted with a ring liquid pump. Top cover also called vacuum mat consists of two suction mats 6m x 7m. Filter pads restricts the particle of concrete to enter in pump. Procedure of tremix concreting At first, concrete is placed on the site by common concreting procedure like placing, leveling, compacting etc. After compaction of concrete surplus water is appeared on the upper surface of concrete floor. Filter pads are placed on the fresh concrete leaving about 4 inches of fresh concrete exposed on all sides. The top cover is then placed on the filter pads and rolled out till it cover...