不饱和聚酯砂浆与水泥砂浆界面粘结性能的研究

Study on bondign properties between up mortar and cement mortar

作者通过对影响不饱和聚酯砂浆 (UPM )与水泥砂浆基底粘结的各因素的分析 ,得到以下结论 :粗糙、干燥、坚实的基底有利于界面粘结强度的提高 ;通过各组分合理的配比 ,UPM与水泥砂浆基底的粘结强度可达5 5MPa ;用自行研制的界面改性剂处理水泥砂浆表面 ,可使其与UPM的粘结强度提高 6 0 %。

Based on the analysis of the factors which affect the bonding between UPM and cement mortar and numerous experiments.The author fingured out the main factors which influence the cohesive strength between the UPM and substrate are the fluidity of UPM to substrate and the shrinkage ratio of UPM.The solid substrate and rough and dry surface of substrate is propitious to get a high cohesive strength between the UPM and substrate.When the interface is modified by finishing agents,the cohesive stength can increase greatly.The authors also take a tentative approach to the mechanism between he UPM and subsrate.