Influence of Compounded Mineral Admixtures on Shrinkage and Early-Age Cracking Behaviors of Concrete

Xue Fang Wang; Jian Lan Zheng

doi:10.4028/www.scientific.net/AMR.450-451.738

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 450-451Influence of Compounded Mineral Admixtures on...

Influence of Compounded Mineral Admixtures on Shrinkage and Early-Age Cracking Behaviors of Concrete

Abstract:

Influence of compounded mineral admixtures on shrinkage and early-age cracking behaviors of concrete was studied, based on the fellow factors: fly ash to blast furnace slag(denoted as BSF) ratio, fly ash-metakaolin ratio, BSF-silica fume ratio. Research shows that the Pozzolanic admixtures compounded with cementitious admixtures have complementary and synergistic effect for hydration progress of concrete, which can enhance the volume stability and cracking behaviors of concrete. However, the pozzolanic admixture compounded with other pozzolanic admixture, two pozzolanic admixtures will grab Ca(OH)2 resource. And then if the dosage of mineral admixture is higher, the compounding will result to decrease the volume stability and cracking behaviors of concrete.

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Periodical:

Advanced Materials Research (Volumes 450-451)

Pages:

738-742

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.450-451.738

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Online since:

January 2012

Authors:

Xue Fang Wang, Jian Lan Zheng

Keywords:

Compounded, Concrete, Cracking Behavior, Mineral Admixture, Shrinkage

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References

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