我队官桥工区在去年采用了泥浆的新处理剂——以工厂出品的单宁酸粉制成的单宁酸钠。在使用过程中，它有用量少、效果好、作用大的优点。比应用煤碱剂、棓碱剂、橡碱剂、青岗剂等优越得多。其主要特点是能迅速的降低泥浆粘度、失水量、静切力、含 Last year, my staff officer’s bridge work area used mud’s new treatment agent, tannin made from the factory’s tannic acid powder. In use, it has less usage, good effect, the advantages of large role. More than the application of coal-base agents, alkaloids agents, alkalis agents, such as Qinggang much superior. Its main feature is to quickly reduce the viscosity of mud, water loss, static force, including