土工基础

›› 2013, Vol. 27 ›› Issue (1): 35-37.

• 工程实录 • 上一篇    下一篇

混凝土浇筑中断后结合面处理及其效果分析

郑琦七，杨 俐，万飞明   

  1. （中交二航局昆明分公司，昆明 650224）
  • 收稿日期:2012-07-13 出版日期:2013-02-28 发布日期:2013-03-05
  • 作者简介:郑琦七（1976-），男，四川广安人，工程师，一级建造师，现任中交二航局昆明分公司经理助理，项目经理。2001年毕业于东南大学，公路与城市道路专业。

Treatment and Evaluation of Concrete Joints Due to Pouring Interruption

ZHENG Qiqi, YANG li， WAN Feiming   

  1. (Kunming Branch, CCCC Second Harbour Engineering Company, Kunming, 650224)
  • Received:2012-07-13 Online:2013-02-28 Published:2013-03-05

摘要： 施工过程中超长泵送混凝土的浇筑出现中断是时常发生的，中断时间过长会对混凝土的整体性和力学性能产生很大影响。对于增强结合面处粘结性能的最简易、最有效的方法之一就是植入钢筋头并在接触面涂刷粘结剂，根据相关理论公式对某工程实际采用的处理方法进行验算评估，结果表明工程处理达到了预期的效果。

关键词: 混凝土浇筑, 中断, 结合面, 粘结强度

Abstract: The interruption of concrete supply during the construction is unavoidable when using the super long concrete pumps. The performance of the concrete joints might be greatly affected by the excessive pouring interruptions. Currently, many measures can be used to improve the concrete joints if the pouring delay is deemed as excessive. Applying the adhesive additives and embedding the dower rebar are among the most popular methods. This paper presents a case history of treating the concrete pour joints caused by the excessive delay in the concrete supply. The theoretical formula for the joint treatment is applied and examined by the actual project.

Key words: Concrete Pouring, Supply Interruption, Concrete Joints, Adhesion Strength