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- W2393875560 abstract "Based on meso-mechanics method,the thermal stresses and thermal expansion coefficient of concrete were studied and the concrete was assumed as a two-phase composite material composed of mortar and aggregate. Given a representative volume element(RVE),the numerical simulations of thermal expansion coefficient and thermal stress were performed by using a 3D random ellipsoid aggregate modeling.Analyses show that the present formula has more precision for prediction of the thermal expansion coefficient than the classical self-consistent method. The dilute distribution method has lowest precision and it is just suitable under the condition of low aggregate volume fraction.The present formula shows good agreement with the numerical simulation except for the condition of high aggregate volume fraction.In the cases in which the elastic modulus ratio between aggregate and mortar is less than 1,the values obtained by present formula are smaller than that by numerical results while the conclusion is opposite if the ratio is greater than 1." @default.
- W2393875560 created "2016-06-24" @default.
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- W2393875560 date "2011-01-01" @default.
- W2393875560 modified "2023-09-25" @default.
- W2393875560 title "Meso-scale Study on Thermal Expansion Coefficient of Concrete" @default.
- W2393875560 hasPublicationYear "2011" @default.
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