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| 摘要: |
| 用聚羧酸盐减水剂和纤维素醚增粘剂配制了自密实混凝土,研究了砂率、减水剂用量、增粘剂用量对新拌混凝土流动性和填充性的影响,考察了增粘剂对新拌混凝土离析性能的影响,提出了满足自密实混凝土工作性能的最佳配比. |
| 关键词: 自密实混凝土,工作性能,砂率,聚羧酸盐减水剂,增粘剂 |
| DOI： |
| 分类号:TU528.01 |
| 基金项目:交通部西部开发项目 |
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| Rheologic Parameters of Self-compacted Concrete with Polycarboxylate Superplasticizer |
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ZHONG Shi-yun BAO Ming-xuan XUE Ming
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| Abstract: |
| The self-compacted concrete(SCC) was prepared with polycarboxylate as superplasticizer and cellulose ether as viscosity-enhancing admixture(VEA).The effect of sand ratio,dosage of polycarboxylate superplasticizer and VEA on the fluidity,filling ability of fresh concrete,and the segregation property of the concrete were studied.The formulation to obtain a self-compacted concrete with best workability is proposed. |
| Key words: self-compacted concrete(SCC),workability,sand ratio,polycarboxylate superplasticizer,viscosity-enhancing admixture(VEA) |
