Optimum material design method of concrete using as an index silicate structure of cement hydrate

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The material design of concrete combination of materials using industrial wastes and cement, knowing the material properties from the time variation of the physical and chemical properties of the microstructural constituents in the concrete is indispensable. This study revealed the relationship between the strength development characteristics and the degree of polymerization of silicic acid chain of calcium silicate hydrate which accounts for the majority of the cement hydrates. As a result, a strong correlation was observed in the compressive strength and the rate of change of the average polymerization degree of the composition ratio of the silicate chain length structure of calcium silicate hydrate. Accordingly, average degree of polymerization composition silicate chain length structure of calcium silicate hydrate has revealed that it is an important indicator in the optimum material design of the concrete.