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| Experiment of pressure deformation behavior for hollow block
masonry of recycled aggregates concrete |
| College of Civil Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, China |
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Abstract In order to investigate the pressure deformation behavior of the recycled concrete block masonry, the small hollow block of recycled aggregates concrete was prepared with average compression strength of 8.60 MPa. The replacement rate of recycled concrete aggregate was 75%. The compression behavior and the elastic modulus of small hollow block masonry with recycled aggregates concrete were investigated to discuss the failure process and the failure feature of recycled concrete hollow block walls. The stressstrain curve and the elastic modulus were also analyzed. The test results show that the compressive properties and the deformation process of recycled concrete hollow block wall are similar to those of ordinary concrete hollow block masonry. The compression limit state reaches after the forming and penetrating of main vertical crack in the specimen. The ultimate bearing capacity and the elastic modulus increase with the increasing of mortar strength. According to the regression analysis of test results, the axiscompression strength and the elastic modulus of recycled concrete hollow block masonry can be calculated by the formula in the standard of masonry structure design code(GB 50003—2010). Based on the test results, the two proposed stressstrain constitutive models are well consistent with experimental results.
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2014, Vol. 35 
