[L80] 耐久性一般Ⅳ／耐火性Ⅱ

[L1129] ENHANCED PHYSICOCHEMICAL-GEOCHEMICAL MODEL COUPLED WITH MICRO-PORE STRUCTURE MODIFICATION TO EVALUATE CEMENTITIOUS MATERIALS IN AGGRESSIVE ENVIRONMENTS

Yogarajah ELAKNESWARAN¹,石田 哲也² (1.The University of Tokyo)

キーワード：DuCOM,PHREEQC,物質移動,構成則,溶解

A coupled physicochemical and geochemical model developed by the authors is extended in this paper by adding more sub-models for various ions to increase its capability and incorporating micro-pore structure modification resulting from mineralogical evolution. The model-based results for composition of cement hydrates, porosity, and ionic concentration in pore solution are quantitatively compared with experimental results obtained in the literature. The usefulness of the developed model in evaluating the degradation of cementitious components and leaching of ions are discussed.
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