Permeability of Lightweight Aggregate Concrete with Mineral Admixture

Abstract:

This paper presents an experimental study on the permeability and the pore structure of lightweight concrete with fly ash, zeolite powder, or silica fume, in comparison to that of normal weight aggregate concrete. The results showed that the mineral admixtures can improve the anti-permeability performance of lightweight aggregate concrete, and mixed with compound mineral admixtures further more. The resistance to chloride-ion permeability of light weight concrete was higher than that of At the same strength grade, the anti-permeability performance of lightweight aggregate concrete is better than that of normal weight aggregate concrete. The anti-permeability performance of LC40 was similar to that of C60. Mineral admixtures can obviously improve the pore structure of lightweight aggregate concrete, the total porosity reduced while the pore size decreased.

• Periodical: Advanced Materials Research (Volume 857)
• Pages: 105-109
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.857.105
• Online since: December 2013
• Authors: Xiu Hua Zheng*, Shu Jie Song, Yong Quan Zhang
• Keywords: Fly Ash (FA), Lightweight Aggregate Concrete, Permeability, Pore Structure, Silica Fume (SF), Zeolite Powder

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