ブリージング水の発生に関する速度論的解析

抄録

This paper deals with a kinetic analysis of the bleeding of mortar and concrete mixtures by applying Darcy's law for the capillary kinetics. Mortar and concrete mixtures with desired mix proportions were mixed at room temperature, and the exuded volume of the bleeding water from the mixtures and its absorbed volume were continuously measured during hardening by using an apparatus developed by the author. In conclusion, several linear relationships between the exuded and absorbed volume of the bleeding water and elapsed time after mixing of the mortar and concrete were obtained. In general, the exudation process of the bleeding water from the mortar and concrete mixtures consists of four and three stages, respectively. The absorption behavior of the bleeding water into the mixtures may be divided into two stages.