水工大体积混凝土裂缝成因及防裂措施研究

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1、水工大体积混凝土裂缝成因及防裂措施研究网络教育学院本科生毕业论文（设计）学习中心：奥鹏远程教育福州学习中心层次：专科起点本科专业：水利水电工程完成日期：2016年3月18日内容摘要随着我国经济实力的高速提升，大体积混凝土工程数量日益增多，大型水利工程、核电站、桥梁等均应用到大体积混凝土。然而大体积混凝土易于开裂，导致其性能与未开裂混凝土性能差异很大。混凝土渗透反过来又会促使混凝土裂缝的进一步扩大，从而形成恶性循环，对建筑的长期安全和耐久性造成结构破坏。本文在前人的工作基础上，初步分析了水工大体积混凝土裂缝产生的机理和特征。在前人的

2、研究成果实及本人多年施工经验的基础上提出了有效预防及修复措施。最后，结合具体工程实际情况，深入分析混凝土裂缝产生的机理。依据前文所得出的处理原则，提出了合理的解决措施。关键词：水工；大体积混凝土；混凝土裂缝；防止措施I目录内容摘要·····························································································I引言·························································

3、······································11水工大体积混凝土的应用···································································31.1水工大体积混凝土的应用····························································31.2大体积混凝土裂缝的危害····························································

4、31.3研究课题的提出········································································42水工大体积混凝土裂缝产生原因··························································52.1温度裂缝·················································································52.1.1裂缝产生机理··········

5、·························································52.1.2温度裂缝的特征································································52.2收缩裂缝·················································································62.2.1裂缝产生机理·································

6、··································62.2.2收缩裂缝的特征································································62.3混凝土所用材料产生的裂缝·························································72.3.1裂缝产生机理···································································72.2.

7、2裂缝的特征······································································83水工大体积混凝土裂缝防治措施··························································93.1温度裂缝防治措施·····································································93.1.1降低原材料温度························

8、········································93.1.2埋设冷却水管···································································93.1.