Abstract
Recently, high strength artificial lightweight aggregates are being used for lightweight concrete as structural material in this country. Lightweight concrete seems to have different property from that of normal concrete, and requires specific treatment in the design and execution of structures.In order to study the fundamental properties of the lightweight concrete with artificial lightweight aggregates, measurement and observation were made of the consistency of fresh lightweight concrete and of the compressive strength and static modulus of elasticity of hardened lightweight concrete. The results obtained from these experiments were discussed in comparison with those of normal concrete.The diagonal tension test and the fatigue test were conducted on the beams of lightweight concrete and those of normal concrete. The investigation was made of their properties of the diagonal tensile strength, the fatigue properties, the behavior of the bond stress distribution, the behavior of the crack, and so on.
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