1、 毕毕 业业 论论 文文 题 目 混凝土质量通病及预防措施 I 摘 要 在混凝土工程施工过程中,往往由于思想上和技术上的疏忽,使混凝土结构构件产生 各种缺陷。混凝土的质量优劣,直接影响到建筑物的安全和降低使用功能。在许多工程中, 我们经常可以见到拆模后的混凝土存在裂缝、尺寸偏差、蜂窝、麻面等质量缺陷,这些都 不同程度地影响着结构的质量、外观、整体性,而且会带来一系列缺陷的恶性循环,有的甚 至会造成意想不到的工程质量事故。这些质量缺陷以目前的施工技术是没办法完全根除 的,我们能做的就是在施工时做好防治工作,才能最大限度地消除混凝土质量缺陷。那么 要如何最大限度的消除混凝土质量缺陷,保证工程结构的
2、安全,应该是工程管理人员和现 场施工人员急需掌握的。 本文通过实践工地的工程实例,分析混凝土产生质量缺陷的主要原因,提出防止质量 缺陷出现的措施,以及在出现质量缺陷时的处理方法。 关键词:关键词:混凝土质量缺陷 裂缝 尺寸偏差 蜂窝、麻面 预防措施 处理方法 Abstract II Common faults and preventive measures of concrete quality.Concrete construction process, often due to the intellectual and technical oversight, have various d
3、rawbacks of the concrete structures. The quality of concrete, directly affects the security of the building and reduce the use function. In many projects, we can often see after form removal of concrete cracking, dimensional deviations, such as honeycomb and pockmark quality defects, all of varying
4、degrees, affect the quality of structural integrity, appearance, and will bring a range of defects of a vicious cycle, and in some cases may cause unexpected project quality accident. These quality defects with current construction techniques are not able to eradicate, we can do is to take preventiv
5、e measures in the construction, in order to minimize the concrete quality defects. So how to maximize the Elimination of concrete quality defects, guarantee the safety of engineering structures, should be the project management and on-site construction personnel need to grasp. This site through the
6、practice of engineering, analysis of concrete quality defect main reasons and propose measures to prevent quality defects appear, and in case of quality defects of processing methods. Key words: cracks of concrete quality defect size deviation method of honeycomb and pockmark preventive measures 目 录 摘 要 I Abstract I 第 1 章 工程实例 1 第 2 章 混凝土裂缝产生原因及防治处理措施 3 2.1 混凝土裂缝产生原因 3 2.2 混凝土裂缝的预防措施 3 2.2.1 一般结构的预防措施 .3 2.2.2 大体积结构的预防措施 .4 2.3 混凝土裂缝的处理方法 4 第 3 章 混凝土外形尺寸偏差产生原因及防治处理措施 6 3.1 混凝土外形尺寸偏差产生原因 6 3.