文章介绍了在非洲毛里塔尼亚(Mauritanie)努瓦迪布(Nouadhibou)地区通过沙漠砂与机制砂掺配使用,配制性能优良的C50强度等级混凝土的过程。所配制出的混凝土黏聚性好,不泌水、不离析,28d强度平均值62.2MPa,最大值70.1MPa,完全满足中国及欧洲规范要求,填补了该地区C50强度等级混凝土空白。 The article describes the preparation of high performance C50 strength concrete by blending sand and sand together in Nouadhibou, Mauritanie, Africa. The prepared concrete has good cohesiveness, no bleeding and no segregation. The mean value of 28d strength is 62.2MPa and the maximum value is 70.1MPa, which fully meets the requirements of China and Europe and fills the gap of C50 strength grade concrete in this area.