Experimental Study on Mechanical Properties of Permeable Concrete

The mechanical properties of permeable concrete are mainly affected by the water-cement ratio and coarse aggregate gradation. In order to further clarify the relationship between the tensile strength and compressive strength of porous concrete and the above-mentioned influencing factors, the test pieces of different test ratios were tested by preparing porous concrete test blocks and using RFPA2D numerical simulation method. The results show that the tensile and compressive strength of the permeable concrete gradually decreases with the increase of the water-cement ratio under the same conditions of coarse aggregate gradation. In the case of the same water-cement ratio, the tensile and compressive strength of the permeable concrete gradually increases as the particle size of the coarse aggregate increases. The larger the coarse aggregate particle size, the greater the increase in tensile strength.