| 摘要: |
| 不添加矿物掺合料，以5种组分（水泥、砂、碎石、水及减水剂）配制五组分高强混凝土，国内外目前尚无统一成熟的方法.首先对Mehta等推荐的五组分高强混凝土配合比进行试验验证，然后以此为基础，将砂率（质量分数）和设计强度系数作为变化因素，利用普通混凝土配合比设计方法进行拟合计算，得出适用于C65，C70，C75，C90五组分高强混凝土配合比的最佳砂率和最佳设计强度系数，并进行了验证.结果表明，可利用普通混凝土配合比设计方法进行C65，C70，C75，C90五组分高强混凝土配合比设计. |
| 关键词: 高强混凝土 配合比 设计强度系数 砂率 |
| DOI：103969/jissn1007 9629201502019 |
| 分类号: |
| 基金项目:鞍山市民生科技进步行动计划项目（ASKJ201305） |
|
| Study on Mix Proportion Design Method for High Strength Concrete with Five Components |
|
ZHANG Tiezhi, TIAN Shuai, XU Ling
|
|
School of Civil Engineering,University of Science and Technology Liaoning, Anshan 114051, China
|
| Abstract: |
| There do not seem to be unified mature design methods for high strength concrete with five components（cement, sand, gravel, water and water reducing agent） without mineral admixture at home and abroad. The procedure of verification by test was carried out for the mix proportion of high strength concrete with five components recommended by Mehta etc.，on this basis, a series of fitting calculations were implemented according to the mix proportion design method of common concrete with the sand ratio（by mass） and design strength coefficient as variables, both the best sand ratio and the best design strength coefficient that were suitable for C65, C70, C75 and C90 high strength concrete with five components were obtained and verified. The results show that it is valid for mix proportion design of C65, C70, C75 and C90 high strength concrete with five components by the method of mix proportion design for common concrete. |
| Key words: high strength concrete mix proportion design strength coefficient sand ratio |
