在無机膠凝材料水泥中摻用大量混合材料,以節約水泥和改善水泥混凝土性能,現在已成为廣泛推行的一种先進技術措施。为此,我們在1956年8月至11月底三个多月时間內,在中山、湛江、佛山、从化、良口以及1957年4月份在花縣等近郊,進行了对 Adopting a large amount of mixed materials in inorganic cementitious materials to save cement and improve the properties of cement concrete has now become a widely adopted advanced technical measure. To this end, we conducted a survey in Zhongshan, Zhanjiang, Foshan, Conghua, Liangkou and the outskirts of Huaxian in April 1957 during the more than three months from August 1956 to the end of November.