Cement stability test, according to GB / T 750-1992 conduct. Testing process is the use of standard cement paste consistency were, be made into a certain shape (diameter 70 ~ 80mm white cement prices, the central thickness lOmm, tapered edge) test cake, put people inside the boiling water boiled 4h, such as boiled bread by visual observation of the test found no cracks of cement, when checking with a ruler and no bending phenomenon is called stability qualified; otherwise white cement, was unqualified. After cement and water become semi-fluid plasticity, when after a period of time, the grout gradually lose plasticity and keep the original shape of cement bricks, 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 condensation too fast, concrete soon lose mobility, 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. _ _ Ezhou white cement cement cement provided by Wuhan Hongshan District of Wuhan pavilion cement operation. Hongshan District of Wuhan pavilion cement business unit (www.whltsn.com) (www.hbltsn.com) strong, credible, in Wuhan of cement and related products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wuhan cement into the brilliant and you work for a better future!