沸石粉对自密实混凝土内养护效果的试验研究

Internal Curing Effect Experimental Research of Self-compacting Concrete

论文主要研究沸石粉对自密实混凝土的强度和内养护效果的影响。通过六组108块胶砂龄期分为7d、28d、90d的试块的抗折和抗压强度以及5组90块混凝土试块的龄期为7d、28d、90d抗压强度的研究显示：掺有0~4%沸石粉对自密实凝土的胶砂体系强度的内养护效果和强度及掺有0~2%沸石粉对提高自密实凝土的内养护效果和强度效果最佳;在掺有沸石粉的自密实混凝土的强度和内养护性能可以协调发展,即在改善混凝土内养护性能的同时,提高混凝土的强度。

The influence of zeolite powder to the strength and the effect of internal curing of self-compacting concrete are mainly discussed in this article. The result of test about the flexural strength and the compressive strength of motar and the compressive strength of concrete reveals： Motar mixed with 0-2% zeolite powder is the optimal production in the effect of internal curing and strength, self--compacting concrete mixed with 0-4 % zeolite powder is the optimal production in the effect of internal curing and strength. The strength and the performance of internal curing of the self-compacting concrete mixed with zeolite powder can develop coordinately, that is, the internal curing perform- ance of concrete can be improved while the strength of the concrete is enhanced.