抄録
Based on the experimental results of strength-development behavior of massive concrete blocks, we propose a new idea of concrete strength control method for the concrete of using the B-type fly-ash cement and the fly-ash compound moderate-heat cement. (1). Concrete mix may be designed that the concrete strength of massive structures in situ satisfies the specific design strength until 13 weeks of concrete ages, not at 4 weeks. (2). Standard curing specimens are tested at 4 weeks for the strength inspection. (3). In the case where the specific design strength is under 360kgf/cm^2, the acceptable strength is more than the specific design strength. In the case where the specific design strength is over 360kgf/cm^2, the acceptable strength is more than the specific design strength plus 50kgf/cm^2.
