Abstract: he results of experimental investigation and their corresponding technical menthod of developing 55 MPahigh strength concrete with # 425 cement have been givcn in this paper.The advantages of this menthod arethat the raw materials are casy to be obtained and the relevant teehnological proeess is simple and applicable.?

Key words: water-cement ratio, water reducer, suspension-dispersion Structure, spacial network frame structure, compound sand

摘要： 本文介绍以常用425号水泥配制强度达55MPa高强度混凝土的试验结果及应采取的措施，具有原材料取材方便，制作工艺简单易行的优点．

关键词: 水灰比, 减水剂, 悬浮分散结构, 空间网络骨架结构, 混合砂