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据制管厂资料,在各种有缺陷的钢筋混凝土压力管总数中有40～60％由于混凝土渗水而降级为低压管。提高钢筋混凝土压力管质量的一种方法是:在生产中采用《全苏钢筋混凝土研究院》拟定的,压力浸泡水玻璃方法修复混凝土抗渗性工艺(见ВНИИЭСМ丛书《装配式钢筋混凝土工业》莫斯科、 1975年、第四版所载提高钢筋混凝土压力管抗渗性方法,作者:А.И.德米特里耶夫、О.И.克里库诺夫、Г.В.托波里斯基)。这种工艺有两种方案,即:单体试验和现代化的试压机试验。
According to the data from the manufacturer, 40 to 60% of the total number of defective reinforced concrete pressure pipes are degraded to low-pressure pipes due to concrete seepage. One way to improve the quality of reinforced concrete pressure pipes is to use the method developed by the “Full Soviet Union Reinforced Concrete Research Institute” and pressure impregnated water glass method to repair the impermeability of concrete (see ВНИИЭСМ series “Modular Reinforced Concrete Industry”, Moscow). In 1975, the fourth edition of reinforced concrete pressure pipes set out to improve the impermeability of the method, of:... А.И Dmitriev, О.И 克里库诺夫, Г.В topo Li Siji ). There are two options for this process: monomer testing and modern test press testing.