美国矿物局科学家研制成功了一种新型混凝土——硫混凝土,它不仅强度高,而且可耐酸、盐和其它许多腐蚀性的化学药品。硫混凝土是一种热塑性材料,它是由硫水泥与砂、砾石,在135°-140℃温度下混合搅拌而成。高热的硫混凝土可以进行浇注、找平和涂抹,冷却后就变成了高强材料,它可以在四小时内固化,24小时内达到最终强度。试制硫混凝土关键在于试制硫水泥。七 Scientists from the U.S. Bureau of Mines have developed a new type of concrete, sulfur concrete, which is not only high in strength but also resistant to acids, salts and many other corrosive chemicals. Sulfur concrete is a kind of thermoplastic material, which is made of sulfur cement, sand and gravel, mixed and stirred at a temperature of 135°-140°C. High-temperature sulphur concrete can be poured, leveled and coated, and after cooling, it becomes a high-strength material that can cure within four hours and reach its final strength within 24 hours. The key to trial-producing sulphur concrete lies in trial production of sulphur cement. Seven