| 摘要 |
PURPOSE: Light weight concrete is provided to obtain a required compressive strength and the specific gravity, and to reduce The weight of the concrete while improving the intensity of the concrete. CONSTITUTION: Light weight concrete contains the following: 100 parts by weight of a composition including 39.95~49.9 parts by weight of portland cement, 50~60 parts by weight of light weight aggregate, and 0.05~0.1 parts by weight of a fibrous reinforcement; and water in which the water and the cement is in a weight ratio of 0.35~0.5. The composition consists a AEA(air entraining agent) to regularly distribute micro bubbles inside the concrete, a retarder extending the time required for a coagulation, and a water reducing agent to disperse the cement particles.
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