Influence of aggregates on chloride diffusion coefficient into mortar |
| |
Authors: | Sabine Caré |
| |
Affiliation: | Laboratoire Central des Ponts et Chaussées, F-75732 Paris, Cedex 15, France |
| |
Abstract: | In order to determine the influence of aggregates on chloride ion ingress, mortar specimens were cast with different aggregate size distribution and the same aggregate volume content. One side of the specimen was in contact with alkaline solution containing sodium chloride. The process of chloride ingress is due to diffusion. The effect of the interfacial transition zone (ITZ) around aggregate and of the tortuosity due to aggregates have been taken into account for interpreting the experimental data obtained. These two competing effects have been quantified by using the theory of composite materials. It appears that the diffusion coefficient varies as a function of the ITZ volume content and of the tortuosity. |
| |
Keywords: | Interfacial transition zone Diffusion Transport properties Chloride Mortar |
本文献已被 ScienceDirect 等数据库收录! |