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Relationship between chloride diffusivity and pore structure of hardened cement paste 被引量:7
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作者 Guo-wen SUN Wei SUN Yun-sheng ZHANG Zhi-yong LIU 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2011年第5期360-367,共8页
Based on effective media theory, a predictive model, relating chloride diffusivity to the capillary pores, gel pores, tortuosity factor, and pore size distribution of hardened cement, is proposed. To verify the propos... Based on effective media theory, a predictive model, relating chloride diffusivity to the capillary pores, gel pores, tortuosity factor, and pore size distribution of hardened cement, is proposed. To verify the proposed model, the diffusion coefficient of chloride ions, the degree of hydration, and peak radius of capillary pores of cement paste specimens were measured. The predicted results for chloride diffusivity were compared with published data. The results showed that the predicted chloride diffusivity of hardened cement paste was in good agreement with the experimental results. The effect of the evolution of pore structures in cement paste on chloride diffusivity could be deduced simultaneously using the proposed model. 展开更多
关键词 Hardened cement paste Chloride diffusivity POROSITY Tortuosity factor Constrictivity key words: Hardened cement paste Chloride diffusivity Porosity Tortuosity factor Conslrictivity
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