Tensile strength of pervious concrete with different mix proportions

Abstract

No-fines concrete is a distinctive kind of concrete that has an amount of porosity that lets the water and any liquid sources pass immediately through it. Often, many mechanical properties of concrete refer to its strength through the testing of the compressive strength, flexural strength, and splitting tensile. Thus, this research mainly focused on the splitting tensile strength with different mix ingredients. Two series of penetrable concrete were prepared to study the effect of two parameters on such concrete. In the first group, the sand was eliminated for one sample and the styrene butadiene rubber (SBR) was added to the mix with a percentage of 5% and 8% by cement weight. The second group was to study the effect of a partial replacement of coarse aggregate with sand in three varied proportions of 15%, 30%, and 45% of the total volume of aggregate. The water/cement ratio (w/c) was chosen to be 0.38 and 0.42. The results showed that the sand content has a higher positive effect than SBR on the tensile strength of pervious concrete.