新老混凝土粘结面抗冻性能试验研究

The study of ability of resisting freeze-thaw to the adherence face

通过试验分析了新老混凝土粘结面的抗冻性能。结果表明新老混凝土粘结面抗冻性能较差。光面粘结面抗冻性能不如凿毛面和劈裂粘结面,U型膨胀剂效果不如水泥净浆和砂浆。

Based on test,the article has analyzed the ability of resisting freezethaw cycles to the adherence face of new on old concrete . The result indicated that the resistance to freezthaw of adherence face is very low. The neat adherence face has a low resistance to freezthaw than chiseling and cleavage face,and the U expansive agent is low than cementing paste and cement mortar.