| Title |
Study on the Thermal Expansion Rate of Re-emulsification Type Polymer Modified Cement Mortar |
| Authors |
Park Dong-Cheon ; Ahn Jae-Cheol ; Oh Sang-Gyun |
| Keywords |
Re-Emulsification Type Polymer ; Polymer Modified Cement Mortar ; Immediate Thermal Expansion Rate ; Delayed Thermal Expansion Rate |
| Abstract |
The thermal expansion rate among the heat characteristics of polymer cement mortar (PCM) is indispensable input data to evaluate the stress generating at a repair part under outsider environmental temperature using the numerical analysis such as FEM. Re-emulsification type polymer which is in the increasing demand due to the outstanding constructability was used in this study. Using the heat characteristic and mechanical property of PCM, The effects and mechanism of materials composition factor to the thermal expansion rate were discussed on the base of the experimental results.
The following conclusions were obtained from the present study.
1) The volume of PCM expand or contract by the increasing temperature. The mechanism is quite complicate because the volume change of materials component and moisture diffusion between pores happen simultaneously.
2) The thermal expansion rate generally increase with the relative moisture content. |