要旨 |
A multi-scale model which is enhanced from microstructure aspect is applied to modeling behaviors of BFS concrete. Through investigation on pore size distribution, hydration degree-dependent specific surface area evolution is proposed for hydration product of BFS blended cement. Accordingly BFS blended cement matrix which has finer microstructure than OPC at later age can be simulated properly. Finally, verification shows that with the enhanced model, moisture loss and shrinkage behaviors of BFS concrete are predicted reasonably. |