Results indicated that the compound expansion agent almost hasn't effect both on setting and frost resistance of crushed stone mortar, but can enhance its permeability resistance ability.
结果表明，复合膨胀剂对石屑砂浆凝结性能和抗冻性能几乎没有影响，可以改善其保水性和抗渗性。
2
The results show that the SAE copolymer emulsion not only reduce the apparent density and absorb water rate of cement mortar, but significantly retard the setting and the hydration of portland cement.
结果表明，加入SAE使水泥砂浆的表观密度降低，吸水率下降，并且明显延缓了水泥的凝结时间及水化速度。
3
However, the setting and hardening time of the concrete, the mortar influences the test results obviously.