Study on the Performance of Machine-Made Sand Concrete Combined Admixture of Limestone Powder and Substandard Fly Ash

Guo Qiang Xu; Lin Gao; Hai Xia Wang

doi:10.4028/www.scientific.net/AMM.99-100.786

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 99-100Study on the Performance of Machine-Made Sand...

Study on the Performance of Machine-Made Sand Concrete Combined Admixture of Limestone Powder and Substandard Fly Ash

Abstract:

This paper adopted combined admixture of limestone powder and substandard fly ash to prepare the machine-made sand concrete, and studied its performance, compressive strength and micro-properties. The results showed that this kind of machine-made sand concrete owned a good performance, for its 60min slump loss within the range of 15mm to 85mm; the changes in the ratio of limestone powder to low-quality fly ash had little effect on the its compressive strength; with the increase of the ratio between limestone powder and low-quality fly ash, the Ca(OH)2 diffraction peak also increased; when hydration was up to 120d, the limestone powder was not involved in the hydration reaction.

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Periodical:

Applied Mechanics and Materials (Volumes 99-100)

Pages:

786-789

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.99-100.786

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Online since:

September 2011

Authors:

Guo Qiang Xu, Lin Gao, Hai Xia Wang

Keywords:

Combined Admixture, Compressive Strength, Limestone Powder, Machine-Made Sand Concrete, Substandard Fly Ash

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References

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