随着沿海地区经济的发展的需要,许多建筑、道桥工程常常遇到不良的水文地质环境对其混凝土等污工结构的侵蚀。根据铁道部科研院的研究报告,推荐使用掺R—1与R—2型防腐蚀剂和粉煤灰于普通混凝土(或砂浆)中,就可以使其抗SO_4~(2-)之能力由K=300mg/l提高到K=15000mg/L(K值为抗硫酸盐极限 With the need of economic development in the coastal areas, many buildings and bridges often encounter poor hydrogeological environments that erode their concrete and other structures. According to the research report of the Ministry of Railway Research Institute, it is recommended to use R-1 and R-2 corrosion inhibitors and fly ash in ordinary concrete (or mortar) to make it resistant to SO_4~(2-). =300mg/l increased to K=15000mg/L (K value is the sulfate limit