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太原钢铁公司初轧厂均热炉主电机的备用风道,负10米深(地下水位负1米),50米长,3米宽,由于防水混凝土的施工质量不好,造成大面积慢渗,潮湿而不见水流;还有一部分混凝土表面有明显裂缝,水沿着裂缝缓慢地流出。风道里常积水30～35厘米深,影响正常使用。1981年,我们用水玻璃速凝剂堵住漏水,再用涂刷型氰凝(聚氨酯) 做防水保护层,解决了备用风道的长期渗漏问题,备用风道的湿度也达到了设计要求,三年来,满足了生产的需要。一、堵漏前的准备工作在堵漏前,先用回弹仪检查漏水处周围混凝土的密实情况,检查半径不应小于50厘米。在回弹值
Taiyuan Iron and Steel Company’s spare tire duct for the main furnace of the soaking furnace is negatively 10 meters deep (ground water level minus 1 meter), 50 meters long and 3 meters wide. Due to poor construction quality of waterproof concrete, large areas of slow penetration Wet, not see the water flow; There are some obvious cracks on the concrete surface, the water slowly flows along the cracks. The air is often 30 to 35 centimeters deep, affecting normal use. In 1981, we used water glass accelerators to stop water leakage, and then applied brushed cyanide (polyurethane) as a protective layer for waterproofing. This solved the long-term leakage problem of the backup air duct. The humidity of the standby air duct also met the design requirements. In the past three years, the needs of production have been met. First, before the plugging preparations Before plugging, first check the leakage of concrete around the concrete compaction, check the radius should not be less than 50 cm. In the rebound value