Abstract：
In order to evaluate the compatibility of AMPS and HPMC with cement, its effects on the fluidity, fluidity loss, strength and shrinkage of cement mortar were analyzed. The results showed that AMPS and HPMC reduce the 1h loss of fluidity, inhibit shrinkage, but decreases the 3d strength. AMPS can improve the fluidity and 28d strength, while HPMC reduces the fluidity, but the inhibiting effect on shrinkage is more obvious. In general, AMPS can be used alone, but HPMC is best used with dispersant.
