C50高抗裂混凝土在赣州赣江大桥中的应用.doc
- 宋停云个人认证 |
- 2021-12-09 发布|
- 1.58 MB|
- 6页
C50高抗裂混凝土在赣州赣江大桥中的应用
摘要:以Ⅱ级粉煤灰作为细矿物掺和料,调整矿物掺合料的掺量和对外加剂的选择确定了施工配合比。研究混凝土的物理力学性能和塑性收缩开裂性能,并在工程中得到了应用。工程应用结果表明:配制的C50抗裂混凝土满足施工设计技术要求,具有较好的工作性,和优异的抗裂性能,在现场拆模后没有明显的裂缝。
关键字:抗裂混凝土;工作性;工程应用
Application of C50 Anti-crack concrete in Ganzhou
Abstract: The construction mixture ratio is decided by adjusting the dosage of mineral admixture and choosing the admixture, which utilizes second grade fly ash as fine mineral admixture. The mechanical property ,operating characteristics and plastic shrinkage are researched, which is used in engineering project. The engineering application show that concrete can meet construction design and technology requirements with better working performance and excellent anti-crack function .It has no obvious cracking after unseaming formwork.
Key words: anti-crack concret