Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modeling autogenous shrinkage of hydrating cement paste by estimating the meniscus radius
https://orcid.org/0000-0001-8813-8810
https://orcid.org/0000-0002-6450-2742
Highlights A model was proposed to predict autogenous shrinkage of hydrating cement paste. Model was based on estimated meniscus radius, which varies with age of specimens. Accurate predictions could be obtained without measuring internal relative humidity. Pore structure has a greater effect on the magnitude of autogenous shrinkage.
Abstract In this study, a model for predicting the autogenous shrinkage of hydrating cement paste was developed by estimating the radius of meniscus, which varies with age. The meniscus radius was estimated by considering the pore structure that varies with age, and the amount of water consumed by the hydration reaction. The proposed model was verified through a comparison with test data, with respect to the self-desiccation estimated from the meniscus radius and autogenous shrinkage of cement paste with different water-to-cement ratios. While considering poroelastic behavior, the proposed model predicted autogenous shrinkage of cement paste with reasonable accuracy. It was shown that the amount of water consumed by the hydration reaction increases the autogenous shrinkage; however, the pore structure has a greater effect on the magnitude of autogenous shrinkage. The proposed model is expected to be useful in predicting autogenous shrinkage of concrete without measuring the internal relative humidity.
Modeling autogenous shrinkage of hydrating cement paste by estimating the meniscus radius
https://orcid.org/0000-0001-8813-8810
https://orcid.org/0000-0002-6450-2742
Highlights A model was proposed to predict autogenous shrinkage of hydrating cement paste. Model was based on estimated meniscus radius, which varies with age of specimens. Accurate predictions could be obtained without measuring internal relative humidity. Pore structure has a greater effect on the magnitude of autogenous shrinkage.
Abstract In this study, a model for predicting the autogenous shrinkage of hydrating cement paste was developed by estimating the radius of meniscus, which varies with age. The meniscus radius was estimated by considering the pore structure that varies with age, and the amount of water consumed by the hydration reaction. The proposed model was verified through a comparison with test data, with respect to the self-desiccation estimated from the meniscus radius and autogenous shrinkage of cement paste with different water-to-cement ratios. While considering poroelastic behavior, the proposed model predicted autogenous shrinkage of cement paste with reasonable accuracy. It was shown that the amount of water consumed by the hydration reaction increases the autogenous shrinkage; however, the pore structure has a greater effect on the magnitude of autogenous shrinkage. The proposed model is expected to be useful in predicting autogenous shrinkage of concrete without measuring the internal relative humidity.
Modeling autogenous shrinkage of hydrating cement paste by estimating the meniscus radius
https://orcid.org/0000-0001-8813-8810
https://orcid.org/0000-0002-6450-2742
Highlights A model was proposed to predict autogenous shrinkage of hydrating cement paste. Model was based on estimated meniscus radius, which varies with age of specimens. Accurate predictions could be obtained without measuring internal relative humidity. Pore structure has a greater effect on the magnitude of autogenous shrinkage.
Abstract In this study, a model for predicting the autogenous shrinkage of hydrating cement paste was developed by estimating the radius of meniscus, which varies with age. The meniscus radius was estimated by considering the pore structure that varies with age, and the amount of water consumed by the hydration reaction. The proposed model was verified through a comparison with test data, with respect to the self-desiccation estimated from the meniscus radius and autogenous shrinkage of cement paste with different water-to-cement ratios. While considering poroelastic behavior, the proposed model predicted autogenous shrinkage of cement paste with reasonable accuracy. It was shown that the amount of water consumed by the hydration reaction increases the autogenous shrinkage; however, the pore structure has a greater effect on the magnitude of autogenous shrinkage. The proposed model is expected to be useful in predicting autogenous shrinkage of concrete without measuring the internal relative humidity.
Modeling autogenous shrinkage of hydrating cement paste by estimating the meniscus radius
Song, Chiwon (Autor:in) / Hong, Geuntae (Autor:in) / Choi, Seongcheol (Autor:in)
10.05.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Modelling autogenous shrinkage of hydrating cement paste
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Chemical Shrinkage and Autogenous Shrinkage of Hydrating Cement Paste
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Chemical Shrinkage and Autogenous Shrinkage of Hydrating Cement Paste
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Chemical shrinkage and autogeneous shrinkage of hydrating cement paste
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| British Library Online Contents | 1997