The complete stress-strain curve of recycled aggregate concrete under uniaxial compression loading |
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| Authors: | Ting Du Weihong Wang Zhongxin Liu Huaili Lin and Taiping Guo |
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| Affiliation: | (1) ETSICCP, Polytechnic University of Valencia, Camino de Vera, s/n., 46071 Valencia, Spain;(2) EPS Engineering, Dep. Construction, University of Oviedo, Campus de Viesques, 33203 Gij?n, Spain; |
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| Abstract: | The mechanical performance of recycled aggregate concrete (RAC) is investigated. An experiment on the complete stress-strain
curve under uniaxial compression loading of RAC is carried out. The experimental results indicate that the peak stress, peak
strain, secant modulus of the peak point and original point increase with the strength grade of RAC enhanced. On the contrary,
the residual stress of RAC decreases with the strength grade enhancing, and the failure of RAC is often broken at the interface
between the recycled aggregate and the mortar matrix. Finally, the constitutive model of stress-strain model of RAC has been
constituted, and the results from the constitutive model of stress-strain meet the experiment results very well. |
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