Abstract：The experimental study on the effect of temperature and water cement ratio on setting time,viscosity,concretion rate and syneresis rate of cement grout was taken in the laboratory aiming at grouting construction in different temperature,and the linear correlation analysis of concretion rate and syneresis rate was carried out. The results showed that both the initial setting time and the final setting time were reduced,however,the descending developed slowly as the temperature rose. Moreover,the viscosity elevated in low water cement ratio as the temperature increased,while the viscosity had no distinct difference in high water cement ratio.And it presented the increased concretion rate and the decreased syneresis rate with the enhancement of temperature. The properties of cement grout developed in the opposite direction as the water cement ratio increased. The obvious linear relationship between concretion rate and syneresis rate was determined through one-dimensional linear regression.

Keyword：cement fineness;water cement ratio;property of cement grout;slurry viscosity;