| 研究実績の概要 |
We used the nano Al2O3 and SiO2 powder instead of synthetized aluminosilicate glasses. The mass fractions of nano Al2O3 and SiO2 powder were adjusted to represent silica fume, fly ash and metakaolin, respectively. The cement paste were curing at 20 ℃ under RH 99% for 6 months. The reaction was completed because we used nano materials. We designed the customized steady chloride diffusion setup to measure the chloride diffusion coefficient of blended cement paste. Experiment result shows that the chloride diffusion coefficient depends on the chloride concentration of solution and Ca/Si and Al/Si ratio of C-(A)-S-H gel. We are conducting the XRD, TGA and MIP test to measure the binding chloride content and microstructure.
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