唐春平
磷酸盐修补材料粘结强度影响因素研究
唐春平
摘 要:研究了养护条件、界面处理、旧混凝土表面不同湿态及基材种类等因素对磷酸盐修补材料粘结强度的影响。试验结果表明,养护条件对粘结强度有较大的影响,室温养护下强度高,水养护不利于强度的发展。界面处理对粘结强度有很大的影响,粘结面凿毛有利于提高粘结强度。基材为磷酸盐修补材料的粘结强度要明显高于基材为混凝土的粘结强度。
Abstract:The influence of curing condition, surface treatment, moist on concrete surface and base material on bonding flexure strength of phosphate repairing material are studied. Experimental results show that curing condition has great influence on the bonding flexure strength, under curing in air condition the bonding flexure strength is higher and under water curing condition, bonding flexure strength is lower. Surface treatment has a major influence on the bonding flexure strength, the bonding strength of interface can be increased by cutting hair. The bonding flexure strength of base material with phosphate is higher than that with old concrete, and the difference is markedly significant.
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