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随着建筑技术的不断发展,泵送混凝土施工技术得到广泛的应用,但高温膨胀引起的混凝土温度裂缝普遍存在,此种裂缝的出现会引起钢筋的锈蚀,混凝土的碳化,降低混凝土的抗冻、抗疲劳及抗渗能力等。文章就混凝土材料特性进行了研究,并对温度裂缝产生机理、特征、成因作了简要分析,提出了出现裂缝后的防控措施。
With the continuous development of construction technology, the pumping concrete construction technology has been widely used, but the concrete temperature cracks caused by high temperature expansion are widespread. The appearance of such cracks can cause corrosion of steel bars, carbonization of concrete, and reduction of concrete frost resistance. Anti-fatigue and anti-permeability capabilities. In this paper, the characteristics of concrete materials are studied, and the mechanism, characteristics and causes of temperature cracks are briefly analyzed. The prevention and control measures after cracks are proposed.