Effect of Fineness of Fly Ash on Powder Packing Density and Paste Performance

Wen Yang; Na Qian Feng; Ch’ng Guan Bee; Xiao Deng

doi:10.4028/www.scientific.net/AMR.701.296

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 701Effect of Fineness of Fly Ash on Powder Packing...

Effect of Fineness of Fly Ash on Powder Packing Density and Paste Performance

Abstract:

This paper discusses the effect of fineness of fly ash on powder packing density, compacting voidage, paste fluidity and compressive strength. The results showed that when the content of fly ash is between 0%~40%, the compacting voidage of the composite powder is reduced by adding the fly ash with D50 1.0μm and 3.0μm, not by the fly ash with D50 12.0μm. The results of pressured entities voidage are consistent with the calculated values by Aim-Goff model. The optimal content of fly ash with D50 1.0μm and 3.0μm are 30% and 25% respectively, which is more helpful to improve the dense packing density of composite powder. There are good corresponding relationships between compacting voidage, dense packing density and fluidity in composite powder or paste by adding the fly ash with D50 1.0μm and 3.0μm, the fly ash can reduce the dense packing voidage of composite powder, and improve the fluidity of fresh paste.

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Periodical:

Advanced Materials Research (Volume 701)

Pages:

296-301

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.701.296

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Online since:

May 2013

Authors:

Wen Yang, Na Qian Feng, Ch’ng Guan Bee, Xiao Deng

Keywords:

Compacting Voidage, Dense Packing Density, Fluidity, Ultra-Fine Fly Ash

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