The Effect of Slate Powder on Fly Ash in Suppressing Alkali Activity of Slate Aggregate

Long Sheng Zhang; Gu Hua Li; Wu Huang; Xiao Chun He; Fang Jiang; Tong Chao Liu

doi:10.4028/www.scientific.net/AMM.357-360.1450

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 357-360The Effect of Slate Powder on Fly Ash in...

The Effect of Slate Powder on Fly Ash in Suppressing Alkali Activity of Slate Aggregate

Abstract:

Slate has high alkali activity.When broken as aggregate, it produce high content of slate powder.In order to study the effect of slate powder on fly ash in suppressing alkali activity of slate aggregate and the possibility of making full use of the powder,we carried the experiment on rapid mortar bar method.The experimental results show that:1. When the content of slate powder is less than 15% , it has no adverse effect on fly ash in suppressing alkali activity of slate aggregate. When the content of slate powder is greater than 15%,it can increase the effect of suppression.2. For alkali-silica reaction,what really suppress it is the active SiO2 that comes from slate powder or fly ash.As long as the mineral admixture containing active SiO2 grinds fine to the fineness of cement particle, it can increase the effect of suppression on fly ash in suppressing alkali activity of slate aggregate, rather than reduces the suppressive effect.

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Periodical:

Applied Mechanics and Materials (Volumes 357-360)

Pages:

1450-1454

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.357-360.1450

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Online since:

August 2013

Authors:

Long Sheng Zhang*, Gu Hua Li, Wu Huang, Xiao Chun He, Fang Jiang, Tong Chao Liu

Keywords:

Alkali Silica Reaction (ASR), Fly Ash (FA), Slate Aggregate, Slate Powder

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* - Corresponding Author

References

[1] Beijing Engineering Test Center, Test Report For The Concrete Aggregate (sand) c - 2012-0038 (2012)(in chinese).

Google Scholar

[2] Aggregate Alkali Activity Of Research And Test Center, Test Report NRAA - 2009-0333 (2009)(in chinese).

Google Scholar

[3] Beijing Engineering Test Center, Test Report For The Concrete Aggregate (stone) of c - 2012-0040 (2012)(in chinse).

Google Scholar

[4] Standard for Constructional Quality Acceptance of Railway Concrete Engineering (2010).

Google Scholar

[5] Lintao Gu, Architecture Technology. (2007). 18-21(in chinse).

Google Scholar

[6] Suppressive Research Of Limestone Powder For Carbonate Aggregate ASR (Wu Dingyan Fang Kunhe etc. )(in chinse).

Google Scholar

[7] Xianxiao Peng, Guhua Li, etc. Effect of Slate Powder on Alkali Activity of Slate Aggregate. 2012 International Conference on Civil, Architectural and Hydraulic Engineering.

Google Scholar