Influence of Ultrafine Limestone Powder on the Performance of High Volume Mineral Admixture Reactive Powder Concrete

Juan Hong Liu; Shao Min Song; Yong Mei Sun; Lin Wang

doi:10.4028/www.scientific.net/AMR.152-153.1583

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 152-153Influence of Ultrafine Limestone Powder on the...

Influence of Ultrafine Limestone Powder on the Performance of High Volume Mineral Admixture Reactive Powder Concrete

Abstract:

The effects of ground limestone powder on the fluidity, strength and viscosity of reactive powder concrete(RPC) were studied. The results show that, the flexural strength of RPC greatly increases with the increase of the content of ground limestone powder at the W/B of 0.16, 0.18 and 0.20 when ground limestone powder content is less than 30%; for fresh RPC, the maximum compressive strength is 160MPa and the maximum flexural strength is 36.9MPa when the limestone powder content is 158kg/m3 at the W/B of 0.20, with 20cm good fluidity and very compact microstructure; the viscosity of RPC greatly decreases with the addition amount of ground limestone powder, the viscosity of RPC mixture changes from 60,000MPa•S to 18,000MPa•S when cement content decreases from 388kg/m3 to 150kg/m3 and the addition amount of limestone powder increases from 0 to 238kg/m3.

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Periodical:

Advanced Materials Research (Volumes 152-153)

Pages:

1583-1586

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.152-153.1583

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Online since:

October 2010

Authors:

Juan Hong Liu, Shao Min Song, Yong Mei Sun, Lin Wang

Keywords:

Fluidity, Ground Limestone Powder, Reactive Powder Concrete (RPC), Viscosity

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