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The strength development of concrete using various cement, i.e. ordinary portland cement, moderate heat portland cement, blast furnace slag cement type B etc. in structure are investigated based on the data of some experiments carried out in past time. The purpose of this paper is to consider relationship strength development of core specimen from 28days to 91days and mean temperature, and to establish the strength correction value of concrete. The following results were obtained; The strength development from 28days to 91days of core specimen was about 5-10N/mm2 ranges regardless of kinds of cement. The compressive strength of core specimen at 91days was expressed by function of strength of core specimen at 28days and mean temperature. The strength correction value of concrete was suggested.

STRENGTH DEVELOPMENT OF CONCRETE AND STRENGTH CORRECTION VALUE OF CONCRETE USING VARIOUS CEMENTS IN STRUCTURE