Improvement of resistance to freezing and thawing of anhydrous cast cement-like mixture

摘要

In some cases and mixture is blended directly into the gas generating additives in very dry cast cementitious composition having a freeze-thaw damage resistant property is improved, a small (mean diameter 0.1μm~100μm) polymeric microspheres I provides for the use. The polymer microspheres provide interstitial spaces in the material matrix that has the effect of increasing the resistance to freezing and thawing of the material. In the dry cast cementitious compositions, polymeric microspheres act as a gap formed previously.