Design Method of Fly Ash Concrete Mix Proportion Based on Stable Paste-Aggregate Ratio

Abstract:

According to problems with the paste to aggregate ratio increases significantly and lack of recognition to cementitious materials effect of fly ash in current design method of fly ash concrete mix proportion, the paper introduces a new design method of fly ash concrete mix proportion that completely bases on the stable paste to aggregate ratio. The thoughts of parts of cement replaced by equal fly ash or by excessive fly ash in traditional method are not used in this method that starting from the stable paste to aggregate ratio directly, and using the connections of water-binder ratio and concrete strength to deduce the calculation formula of fly ash concrete mix proportion with method of absolute volume. The paper sums up the calculation steps of this new method, and combines with an example to verify the feasibility and effectiveness of this method.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 2110-2114
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.2110
• Online since: March 2012
• Authors: Qing Wei Sun, Han Zhu
• Keywords: Fly Ash Concrete, Mix Proportion, Optimal Paste to Aggregate Ratio, Optimal Sand Ratio, Water-Binder Ratio

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DOI: 10.1520/cca10274j

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