Study on the Influence of Air-Entraining Agent on the Impermeability of Cement-Based Composites Based on its Pore Structure by Fractal Theory

Abstract:

The effect of different quantity of air-entraining agent on the impermeability of cement-based materials are studied in this paper. Impermeability test and mercury intrusion porosimetry (MIP) method were used to characterize the impermeability and pore structures. The fractal dimension is used to describe the characteristic of pore structure and calculated by the data of MIP experiment. The result shows that owing to the improvement of pore structure, the impermeability performance of the cement-based composites is noticeably enhanced when air-entraining agent is added with appropriate quantity.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 615-618
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.615
• Online since: December 2010
• Authors: Zhi Qin Du, Wei Sun
• Keywords: Air-Entraining Agent (AEA), Impermeability, Pore Axis Fractal Dimension, Pore Structure, Pore Volume Fractal Dimension

References

[1] Lu Cui, Jong Herman Cahyadi. Cement and Concrete Research, 2001, 31(2): 277-282.

[2] P. Pipilikaki, M. Beazi-Katsioti. Construction and Building Materials, 2009, 23(5): 1966-(1970).

DOI: 10.1016/j.conbuildmat.2008.08.028

[3] Lianxiang Du, Kevin J. Folliard. Cement and concrete research, 2005, 35: 1463-1471.

[4] Yin Hongyu. Study the fractal characteristic of concrete's pore structure. [D]. Guangxi University, 2006：11-71. (In Chinese).