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如何有效提高混凝土的耐久性,控制大型钢筋混凝土构筑物的裂缝,是土建工程的一个重点和难点。本文阐述了混凝土裂缝的种类,从收缩裂缝、温度裂缝、不均匀沉降裂缝等方面论述了裂缝的产生原因,并从工程设计、材料、施工、养护等方面提出了裂缝控制的措施与方法。对既有的混凝土裂缝,根据不同情况,采取有针对性的治理方案进行治理,保障了结构的安全运营。
How to effectively improve the durability of concrete and control the cracks of large-scale reinforced concrete structures is a key and difficult point of civil engineering. This paper describes the types of concrete cracks, and discusses the causes of the cracks from shrinkage cracks, temperature cracks and uneven settlement cracks. The measures and methods of crack control are put forward from aspects of engineering design, materials, construction and maintenance. On the existing concrete cracks, according to different circumstances, to take targeted management programs for governance, to ensure the safe operation of the structure.