admixture heat
1.The results indicated: the high active mineral admixture slurry solid content could substitute 10%~30% cement to product the high performance concrete of C30~C50,its workability and the later performance had achieved the national standards,and has realized the low hydration heat,the low chemical shrinkage and the low cost application effect.
2.And the results show that mortar in the waste concrete had certain hydraulicity, and by heat treatment, its reactivity could be increased, and that of the one calcinated at the temperature of 650 ℃ was the most, and it can be used as high reactivity cement admixture, when the mix content is below 20%, the cement strength will not decrease.
