Foam Concrete Performance Study Based on Experimental Analysis
Capital Construction Division, Shandong Women’s University, Jinan, Shandong, China
In this paper, it studies the effect of the water-cement ratio, fly ash, PP fiber and high-performance expansion agent on the mechanical property and contractility of the foam concrete through experiments. The results of the experiment show that in the middle-late stages of hydration, the foam concrete shows the characteristic of contraction; when the water-cement ratio is between 0.3 to 0.5, the greater the ratio is, the smaller the contraction of foam concrete will be; when the water-cement ratio is greater than 0.5 or less than 0.2, the contraction amount of 28 d decreases. Fibers in random distribution may slightly reduce the shrinkage of foam concrete; while a certain content of expander can effectively compensate for the deformation shrinkage of foam concrete, and even realize no shrinkage in the early stage of hydration.
Key words: foam concrete / water-cement ratio / contraction / expansion / compressive strength / crack control
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.