Internal relative humidity and creep of concrete with modified admixtures |
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Authors: | Zhi-hai HE and Chun-xiang QIAN |
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Institution: | Zhi-hai HE~(1,2),Chun-xiang QIAN~(1,2) 1.College of Materials Science and Engineering,Southeast University,Nanjing 211189,China,2.Jiangsu Key Lab of Construction Materials |
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Abstract: | The creep characteristics and internal relative humidity(IRH) of concrete with shrinkage reducing admixtures(SRA),poly vinyl alcohol fiber(PVAF) and a mixture of fly ash and slag(MFS) were investigated by the self-made loading device.The pore structure was tested,and the relationship of creep and IRH of concrete was discussed.The results indicate that MFS and SRA reduce the total creep and delay the change of IRH.However,the effect of PVAF is contrary,relative to MFS and SRA.The total creep depends largely ... |
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Keywords: | modified admixture internal relative humidity total creep drying creep basic creep porosity |
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