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水泥是铁路基本建设中用量最大的工程材料之一。多年来由于我国对水泥资源的开发利用进展缓慢,致使水泥和混凝土的科学技术进步迟缓,技术经济效益差。近年来,水泥已成为国家统配物资中的紧缺资源,供需矛盾十分突出,分配尚有缺口。铁路基本建设中所需的水泥,年耗量达200万吨以上,平均每年递增20％以上,从近几年国家对铁路基本建设所统配的水泥比例来看:
Cement is one of the most used engineering materials in the basic construction of railways. Over the years due to the slow progress in the development and utilization of cement resources in China, the scientific and technological progress of cement and concrete has been slow, and the technical and economic benefits have been poor. In recent years, cement has become an indispensable resource in the country’s unified distribution materials. The contradiction between supply and demand is very prominent, and there is still a gap in distribution. The cement needed for the basic construction of railways has an annual consumption of more than 2 million tons, which increases by an average of more than 20% every year. From the perspective of the proportion of cement that the country has allocated to railway infrastructure in recent years: