[1128] WATER ABSORPTION PROPERTIES OF CONCRETE USING SURFACE PENETRANTS INFLUENCED BY VARIOUS FREEZING AND THAWING CONDITIONS
Keywords:concrete, freezing and thawing, surface penetrants, water absorption rate, water content, コンクリート, 凍結融解, 含水率, 吸水速度, 表面含浸材
In this study, for the purpose of clarifying the influence of surface penetrants on frost damage deterioration of concrete, bottom surface water absorption and freeze-thaw test were carried out in which the freezing direction was changed by heat insulation method, the water absorption properties of concrete specimens using surface penetrants were investigated. According to the results, the silane-based penetrants whose water absorption was suppressed in the water absorption test got higher water absorption rates than that of the no coating specimens under the condition of upper heat insulation after the freeze-thaw test started, the water absorption was accelerated.