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乌拉尔工业建筑设计科学研究院提出在建筑结构上涂聚合砂浆层防止杂散电流腐蚀的方法。聚合砂浆的成分(按重量计)为: 环氧树脂 100 塑化剂 15 硬化剂 10～15 填充料:安山岩粉 100 砂(0.3～1.25毫米) 250～350 这种聚合砂浆具有很高的抗各种浓度酸和碱化学腐蚀的性能。硬化一月后的抗压强度为30～40兆帕,6月后为70～80兆帕。聚合砂浆与混凝土表面的粘附力超过300号混凝土的抗拉强度极限。硬化后的聚合砂浆具有高的电绝缘性能:体积电阻率为1×10~(12～13)欧姆·厘米。长期热作用也不影响其电绝缘性能。乌拉尔工业建筑设计科学研究院已编制了配制聚合砂浆和在普通温度和低温(达
The Ural Institute of Industrial Architectural Design Science proposed a method of applying a polymer mortar layer to the building structure to prevent stray currents from corroding. The composition of the polymeric mortar (by weight) is: Epoxy resin 100 Plasticizer 15 Hardener 10 to 15 Filler: Andesite powder 100 Sand (0.3 to 1.25 mm) 250 to 350 This polymeric mortar has high resistance to each Concentration of acid and alkali chemically etched properties. After one month of hardening, the compressive strength was 30-40 MPa, and after June was 70-80 MPa. The adhesion of the polymeric mortar to the concrete surface exceeds the tensile strength limit of the No. 300 concrete. The cured polymeric mortar has high electrical insulation properties: the volume resistivity is 1 x 10-12 ohm cm. Long-term thermal effects do not affect its electrical insulation properties. The Ural Institute for Industrial Architectural Design has compiled a formulation for polymeric mortars and at ordinary temperatures and low temperatures (up to