Abstract
A simulation model to estimate the drying shrinkage of mortal and concrete based on the pore structure of composition materials by curing in arbitrary relative humidity is presented. This paper describes procedures for predicting drying shrinkage of cement paste and aggregates based on the pore size distribution measured by mercury porosimetry, the water content in pore structure under arbitrary humidity and change of surface energy inside of cylinder type pore. And the drying shrinkage of mortar or concrete was evaluated using the theory of composite material. To evaluate the effectiveness of this model, simulation results were compared with experimental results. As a result, it was found that the experimental and simulated results were in close agreement, and the effectiveness of simulated model based on the pore structures of composition materials was verified.
