Experimental Study On Permeability Of Crumb Rubber Concrete

Crumb Rubber Concrete (CRC) or Mortar (CRM) is a new type of concrete or mortar with the characteristics of low Young's Modulus, large deformation, high energy dissipation and great crack resistance. It is necessary to study the permeability of Crumb Rubber Concrete. The primary study on permeability of Crumb Rubber Concrete was included .The permeability of Crumb Rubber Concrete was analyzed by the study on permeability of Crumb Rubber Concrete with more crumb rubber (max to 150kg/m3).Because I want to know influence on permeability of Crumb Rubber Concrete and the relation between the intensity of pressure and permeability of Crumb Rubber Concrete. The rubber replaces the stone and sand. And the rubber motes'volume ratio is 0,5%,10%,15%, is the contents of rubber mote in every stere. The outcome of the study indicated the resistance to permeation of Crumb Rubber Concrete is improved remarkably. And the 5% Crumb Rubber Concrete has better permeability.It was discussed that the correlation between permeability and compressive strength of Crumb Rubber Concrete. And have a primary research on the microstructure of Crumb Rubber Concrete and the mechanism of preventing liquid into concrete.Based on neural network, a three layers BP neural network model was given to forecast the permeability of Crumb Rubber Concrete. The model was trained according to the test date. The results show that curves obtained by BP neural network model have preferable accuracy. So it could be used to predict the permeability of Crumb Rubber Concrete.