| 要旨 |
Stress analysis of RC structures that have been retrofitted by Polymer Cement Mortar (PCM) based materials requires development of constitutive model of PCM-concrete interface that are sensitive to property of substrate concrete and interface roughness. In this paper, the tensile stress-crack width model for PCM-concrete interface is presented based on experimental results. Analysis of results indicates that the Mode I fracture energy relies greatly on the quality of bonding substrate and interface roughness. |