After cement and water become semi-fluid plasticity Taihang Cement, after a period of time when cement, grout gradually lose plasticity, and maintain the original shape, a phenomenon called condensation (into the initial set and final set). Then enter the hardening period, the strength of cement increased. Construction of cement setting time required a certain range. If excessive condensation hollow cement bricks, concrete will soon lose mobility cement stocks, thus affecting the vibration; on the contrary, if condensation is too slow, it will affect the speed of construction. Therefore, the standard provisions of the cement setting time and final setting time should be within a certain range. Many varieties of cement on the market, there is portland cement, ordinary portland cement, composite Portland cement, slag cement, etc., home decoration commonly used is ordinary portland cement or composite Portland cement. Cement foam according to mode of production can be divided into physical foaming and chemical foaming. Taihang Cement, Wuhan Cement (certified), Qianjiang cement provided by the Hongshan District of Wuhan pavilion cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) was Wuhan, cement and products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Wuhan cement leadership with the staff warmly welcome all inquiries negotiations to create a better future Wuhan cement.