Retarder Type on Influence of Mine Cement Setting Time

Discusses different types of retarder to mine the effect of cement concrete setting time,different kinds of retarder in temperature change,mixed quantity change to mine the concrete effect of cement setting time.Expounds the retarder retarders as well as action principle.The results showed that the mixed quantity of retarder,the greater the mine cement the setting time is long;when some retarder temperature decreases,the mine cement setting time then extend;Conversely,the mine setting time is shorter cement,that is,the faster the speed setting cement.