On relationships between the mechanical properties of recycled aggregate concrete: An overview |
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Authors: | J-Zh Xiao J-B Li Ch Zhang |
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Affiliation: | (1) Tongji University, Shanghai, 200092, China;(2) University of Siegen, D-57068 Siegen, Germany |
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Abstract: | In this paper, a detailed investigation is conducted to analyze the relationships between the mechanical properties of recycled
aggregate concrete (RAC). Based on a large number of experimental results published worldwide in literature from 1985 to 2004,
an experimental database is developed with regard to the main mechanical properties of RAC. In particular, the relations between
the compressive strength, the density, the splitting tensile strength, the flexural strength, and the elastic modulus are
investigated and discussed in detail. It is found that the interrelationships between the mechanical properties of RAC could
be quite different from those of normal concrete. Some improved new equations are proposed for the prediction of the relations
between the mechanical properties of RAC based on the statistical regression analysis with the least squares method. |
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