Abstract
This paper presents results on the physical and chemical properties of rice husk ash (RHA), and deals with the properties of fresh and hardened concrete incorporating the same ash. The properties of fresh concrete investigated included workability, bleeding, setting time, and autogenous temperature rise, and those of the hardened concrete included compressive, splitting tensile, and flexural strengths, modulus of elasticity, drying shrinkage, resistance to chloride ion penetration, resistance to freezing and thawing cycling, and salt-scaling resistance. In addition to the effects of the percentage of RHA and the water-cementitious materials ratio on the properties investigated, the properties of the RHA concrete were also compared with those of the control Portland cement concrete and silica fume concrete.
Published Version
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