Use of High Volume, Untreated Bagasse Ash as a Fine Aggregate Substitute for Preparing Self-Compacting Concrete

บทคัดย่อ

Abstract

We evaluated the suitability of using untreated bagasse ash (BA) as a river sand aggregate in the preparation of self-compacting concrete. Untreated BA was obtained from an electrical power plant, and was received as fractions of 0%, 10%, 20%, 40%, and 60% by volume of river sand. The mixtures were adjusted to maintain a slump flow diameter of 70 ± 2.5 cm. The rheology properties were tested which included filling ability, passing ability, and segregation resistance. Higher fractions of BA were associated with increased water-to-powder ratios and a decrease in unit weight.