目前世界各国混凝土与钢筋混凝土用量为:苏联260百万米~3,美国250—260百万米~3,日本231百万米~3,意大利120—130百万米~3,联邦德国105百万米~3。世界水泥主要生产国的水泥年产量:中国146百万吨,苏联136百万吨,日本77百万吨,美国81百万吨(考虑进口),意大利36百万吨,联邦德国28百万吨,法国26百万吨,墨西哥21 At present, the amount of concrete and reinforced concrete in the world is 260 million meters to 3 in the Soviet Union, 250 to 260 million meters to 3 in the United States, 231 million meters to 3 in Japan, 120 to 130 million meters to 3 in Italy, and 105 in the Federal Republic of Germany. Million meters ~3. The annual production of cement in major cement producing countries in the world: China 146 million tons, Soviet Union 136 million tons, Japan 77 million tons, USA 81 million tons (considering import), Italy 36 million tons, and Federal Germany 28 million tons , France 26 million tons, Mexico 21