Abstract
Effects of water to binder ratio (mW/mB), types and addition content of mineral admixtures on the autogenous relative humidity (ARH) change of concrete resulting from self-desiccation were studied. The parameters of coefficient of mineral self-desiccation-effect k and efficient water to binder ratio re were proposed, and experimental results were fitted non-linearly and analyzed using these proposed parameters. The experimental results indicate that ARH reduction of concrete at different ages increases with the decrease of mW/mB. The ARH change laws of concrete with mW/mB lower than 0.4 can be expressed with a non-linear equation. The extent of the effect of types and addition content of mineral admixtures on ARH reduction of concrete resulting from self-desiccation can be reflected by the non-linear equation with the parameter of efficient water to binder ratio re effectively.
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Jiang Zheng-wu: Born in 1974
Funded by the National Basic Research Program of China (2001CB610704) and Shanghai Rising-star Program (04QMX1428)
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Zheng-wu, J., Zhen-ping, S. & Pei-ming, W. Self-desiccation effect of high performance concrete. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 19, 82–86 (2004). https://doi.org/10.1007/BF02841377
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DOI: https://doi.org/10.1007/BF02841377