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选用Paraloid B72、Mowiol 4-88、Mowiol 4-98、Remmers 300和含氟聚合物5种保护材料对砂岩石刻进行加固保护和裂隙灌浆研究。通过测试渗透加固保护后砂岩的耐水性、吸湿性,耐冻融性、抗压强度,以及裂隙灌浆修复材料的可成型性、硬度、粘接强度等,评价和筛选渗透加固保护材料和灌浆加固材料。研究结果显示,Remmers 300处理后的砂岩试样具有良好的耐水性和耐湿性;含氟聚合物处理后的砂岩试样具有良好耐冻融稳定性;聚乙烯醇为主剂、粉煤灰为填充剂的砂浆具有良好的粘接性能。
Sandstone carvings were reinforced and fractured by Paraloid B72, Mowiol 4-88, Mowiol 4-98, Remmers 300 and fluoropolymer. Through the testing of water resistance, hygroscopicity, freeze-thaw resistance, compressive strength, as well as the formability, hardness and bonding strength of sandstone after infiltration reinforcement, the infiltration reinforced protective material and grouting reinforcement were evaluated and screened material. The results show that the sandstone sample treated by Remmers 300 has good water resistance and moisture resistance; the sandstone sample treated with fluoropolymer has good freeze-thaw stability; the polyvinyl alcohol is the main agent and the fly ash is Filler mortar has good adhesion properties.