Polystyrene aggregate concrete is one of many lightweight, low strength materials with good energy-absorbing characteristics. However, due to poor workability and a susceptibility to segregation, quality control is difficult during manufacture. This Paper describes the procedures adopted for the mix design and casting of concretes containing 40, 50 and 60 vol.-% (corresponding to specific densities of 0·8, 1·0 and 1·2 respectively) of beaded polystyrene aggregate. Strength and density were controlled by varying the mix proportions. Stress-strain relationships are given, and the compressive strength is shown to vary approximately linearly with density. Modifications to Pauw's equation for the determination of Young's modulus are considered.

No abstract

No abstract

No abstract