“四矾”防水油,是郑州高压电气厂党委发动群众,依靠群众,自力更生,土法上馬,經反复实践試驗成功的,在防治地下工程漏水、渗水方面效果良好,成本低廉。可以在鉄路桥涵、隧道、房建,給排水等有关防水工程中結合具体情况采用。但如用于生活用水貯水池作防水层,是否有毒问題,简缺乏資料,拟作进一步分析驗証。 “Sifan” waterproof oil is the party committee of Zhengzhou High-voltage Electric Factory to mobilize the masses, rely on the masses, self-reliance, and earthwork. After repeated trials and successes, it is effective in preventing leakage and seepage of underground works, and has low cost. It can be used in conjunction with specific conditions in flood control projects such as bridges and culverts, tunnels, housing construction, and water supply and drainage. However, if it is used as a waterproof layer for domestic water storage tanks, whether there is a toxic problem, Jane lacks information and plans to conduct further analysis and verification.