Paper Title:
Prediction of the Strength Development of Fly Ash Concrete
  Abstract

The effect of fly ash in improving the mechanical properties of concrete is investigated and the existing concrete strength development models are studied. Based on the chemic reactivity properties between fly ash and cement, an appropriate concrete strength model are chosen, and a new model for the fly ash strength factor combing Maturity method is built up and the factors are regressed by existing experimental datum. A total of 24 concretes, including two concretes were produced with two partial fly ash replacement ratios (23.7%, 32.7%). The cubic samples produced from ash fly concrete were demoulded after a day, and cured at standard temperature ( in GB/T 50081-2002) with 100% relative humidity until 28 days, then cured in water. The compressive strength tests were carried out on the cubic specimens at different ages. The compressive strength with time was evaluated by using the new predicted model. It was found that the calculated results by new method are fit the experimental data well.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
1026-1033
DOI
10.4028/www.scientific.net/AMR.150-151.1026
Citation
M. H. Liu, Y. F. Wang, "Prediction of the Strength Development of Fly Ash Concrete", Advanced Materials Research, Vols. 150-151, pp. 1026-1033, 2011
Online since
October 2010
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Price
$32.00
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