水下超缓凝混凝土在钻孔咬合桩中的应用
Application of Underwater Super-retarding Concrete in Bored Lock Piles
关键词:
钻孔咬合桩;超缓凝混凝土;双掺技术;工程应用
Key words:
Bored lock piles; Super-retarding concrete; Application
刊期:
2017年第10期
DOI:
文章编号:
1000-4637(2017)10-82-03
基金项目:
作者:
曹良桂,何锐波,王世强,朱贵勋,曾宪森
单位:
云南建投绿色高性能混凝土有限公司, 昆明 650501
摘要
摘 要:针对钻孔咬合桩的施工工艺特点,采用自行研制的专用缓凝高效减水剂以及Ⅱ级粉煤灰和 S75 矿渣粉双掺技术,配制出了具有良好的工作性能的水下超缓凝混凝土,混凝土缓凝时间达60h以上,3d强度不低于3MPa 、28d强度不低于设计强度等级。
Abstract: According to the construction characteristics of the bored lock piles, a new super retarding concrete is prepared by the set-retarding and super plasticizer, and mixed with Ⅱ fly ash and granulated blast furnace slag. The underwater super retarding concrete has good flow properties, the setting time can reach 60 hours when this product is contained in the concrete, the 3 days strength is not under 3MPa, and the 28 days strength can meet the design requirement.
结论
参考文献
引用本文
曹良桂,何锐波,王世强,等.水下超缓凝混凝土在钻孔咬合桩中的应用[J].混凝土与水泥制品,2017(10):82-84.
CAO L G, HE R B, WANG S Q,et al.Application of Underwater Super-retarding Concrete in Bored Lock Piles[J].China Concrete and Cement Products,2017(10):82-84.
上一个: 秸秆纤维对混凝土拉伸性能的影响
相关文件