PROPERTY OF SUPER LIGHTWEIGHT CONCRETE USING EXPANDED POLYSTYRENE BEADS AS COARSE AGGREGATE

Abstract

In regard to expanded polystyrene beads concrete, that is able to reduce the specific gravity of concrete evidently, this paper describes the evaluation and the countermeasure of the property of drying shrinkage, the strength property in super lightweight area, the effects and the mechanism of the compressive strength improvement by chopped carbon fiber (CF) reinforcement
As the results, it is effective in lightweight area, that the specific gravity of concrete of 1.5-2.0, to use the artificial lightweight fine aggregate, and it is effective in super lightweight area, specific gravity of under 1.2, to reinforce the mortar matrix by the CF.