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一、历史从1903年德国有了第一家商品混凝土供应站算起,商品混凝土生产历史快有80年了,然而生产能力的真正形成却是在50年代,60年代开始才在欧美日本等国家普及起来。目前在经济发达的国家里,商品混凝土的供应量达到了混凝土全部生产量的60％以上。德国是最早建立商品混凝土供应站的国家。但由于第一次世界大战及连续不断的经济危机,致使商品混凝土的生产竟停
I. History Since Germany had the first commercial concrete supply station in 1903, the history of commercial concrete production has been almost 80 years. However, the real production capacity was formed in the 50s and 60s. It was only in Europe, America and Japan. Popularize. At present, in the economically developed countries, the supply of commercial concrete has reached more than 60% of the total production of concrete. Germany was the first country to establish a commercial concrete supply station. However, due to the First World War and the continuous economic crisis, the production of commercial concrete stopped.