Abstract
Experiments were carried out on high-strength concrete specimens subjected to temperature rise due to heat of hydration in structure in order to discuss the prediction models for their early-stage mechanical properties, i.e., compressive strength and Young's modulus. The concrete maturity is estimated by the equivalent age specified in CEB-FIP Model Code 1990. The developments of mechanical properties can be fairly expressed by the present model curves, regardless of the temperature histories, derived from adding a parameter for final setting time to the equations specified in the Code. Influences of water to cement ratio and type of cement on the model and reduction of the development in structure to the standard specimen cured in water at 20℃ are also discussed.
