LOW SELF-SHRINKABLE CEMENT COMPOSITION OF HIGH PORE PHASE TYPE

摘要

PROBLEM TO BE SOLVED: To provide a low self-shrinkable cement composition of a high pore phase type in which the self-shrinkage is low even when used in a low water cement ratio conventionally causing the self-shrinkage regardless of a high amount of the pore phase, and a large quantity of industrial by-product/industrial waste rich in an Al2O3component can be used as a cement raw material. Ž

SOLUTION: The cement composition containing cement clinker and gypsum is prepared so that the total quantity of C3A and C4AF is 20-30 mass% and the quantity of f.CaO is 0.28-1 mass%. Ž

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