Inspection and repair methods on frost damage of concrete based on evaluation of scaling using gloss meter

本文针对混凝土结垢等冻害问题进行了研究，并在薄铝箔光泽仪评价结垢的基础上，对混凝土冻害的检测与修复方法进行了探讨。从表面光泽度得到表面粗糙度，并从表面粗糙度估计结垢的量。根据试验结果，提出了由光泽度估算混凝土失重的公式，并提出了基于试验结果的结垢进度预测公式。研究了劣化混凝土的修复方法，并对寒冷地区的实际结构进行了现场勘察，验证了所提方法的有效性。调查结果表明，该方法测量的结垢状态与基于目视观察的Rilem标准方法的结果相吻合。

In this study, we dealt with frost damage of concrete such as scaling, and investigated the inspection and repair methods on frost damage of concrete based on evaluation of scaling using gloss meter with thin aluminum foil. It was obtained surface roughness from the glossiness, and estimated amount of scaling from the surface roughness. According to the results, we proposed the equation for estimation of concrete weight loss from glossiness, and also proposed the equation for progress prediction of scaling based on results of experiments. We studied appropriate repair methods for deteriorated concrete and carried out field survey of actual structures located in cold region for verification of our proposed methods. The survey results showed that the state of scaling measured by the proposed method matched the results by the RILEM standard method based on visual observation.