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《Journal of South China University of Technology(Natural Science Edition)》 2007-02
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Fractal Dimension of Pore Structure of Concrete

Wei Jiang-xiong Yu Qi-jun Zeng Xiao-xing Bai Rui-ying (School of Materials Science and Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China)  
A fractal model is established to simulate the spatial structure of concrete slurry,and a formula that describes the relationship among the fractal dimension D,the porosity P and the pore distribution is deduced.Based on the proposed formula,a fractal dimension of concrete pore structure in the range of 0 to 3 is obtained,which increases with the decrease in porosity and with the widening in pore distribution.Moreover,a Mercury Intrusion Porosimeter(MIP) is used to determine the pore structure of ordinary Portland cement and to calculate the corresponding fractal dimension.The results indicate that the fractal dimension and the concrete strength are closely interrelated.
【Fund】: 国家自然科学基金资助项目(50602016);; 特种功能材料及其制备教育部重点实验室青年创新基金资助项目(200500A);; 硅酸盐材料工程教育部重点实验室开放基金资助项目(SYSJJ2006-07)
【CateGory Index】: TU528.0
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