Permeability of concrete mixtures Part 2: Experimental methodology and results

This paper is the second of a two part series concerning the permeability of concrete. The first part presented a comprehensive literature review of previous investigations. The literature review indicated the need for an improved method of measuring permeability coefficients. The present paper describes a high pressure flexible wall permeameter system. This state of the art system eliminates most of the difficulties which were encountered in previous investigations. The permeability coefficients of 24 concrete mixtures were measured using the high pressure flexible wall permeameter system. These results, along with typical time dependent flow characteristics of laboratory concrete specimens are also presented.