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Effect of Volcanic Rock Powder on Performance of Foamed Concrete

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Abstract:

Foamed concrete is prepared by the use of volcanic rock powder and ordinary portland cement and by means of chemical foaming method. The chemical composition and morphology of volcanic rock powder are analyzed,and the effect of volcanic rock powder addition into the portland cement slurry on the properties of foamed concrete is discussed.The results that the properties of the foam concrete could be prepared by controlling the addition of the volcanic rock powder content is 20%, The Compressive strength is as high as 1.36Mpa. The thermal conductivity is 0.048W/(m·K) and the dry density is 254kg/m3 for 28 days curing age. The main compositions of volcanic rock powder is SiO2 and the volcanic rock has a large number of closed and open pores.

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Periodical:

Advanced Materials Research (Volumes 1033-1034)

Pages:

887-891

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1033-1034.887

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Online since:

October 2014

Authors:

Kui Fan Su*, Bo Jiang, Jiang Shan Lian, Pei Cheng Qin, Si Zhi He, Jun Kai Chen

Keywords:

Dry Density, Foamed Concrete, Thermal Conductivity, Volcanic Rock Powder

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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