Compliance criteria for quality concrete

Abstract

This research aims to develop appropriate concrete quality compliance criteria through an extensive experimental investigation using typical materials available in eastern Saudi Arabia. The experimental program consisted of testing the concrete specimens prepared with different mix proportions. Type I cement, Abu-Hadriah aggregates and dune sand were used in the mixes and the variables were: four levels of w/cm ratio, three levels of cementitious materials content, and three types of plain and blended cements (Type I, Type I + 7.5% silica fume and Type I + 20% of fly ash). The following tests were conducted in the experimental program: (1) compressive strength; (2) pulse velocity; (3) rebound hammer; (4) water penetration; (5) rapid chloride permeability; (6) Chloride diffusion; (7) time to initiation of reinforcement corrosion and (8) corrosion current density. (Abstract shortened by UMI.)