论文部分内容阅读
冬季混凝土施工一直以来都是混凝土施工中的难点,它与混凝土常温施工有着很大的不同。本文结合咸旬高速公路LJ-11标三水河特大桥主桥0+1#块冬季施工实例,阐述了混凝土冬季施工方法的选择及关键技术措施。同时,通过该标段对各种原材料和设备采取必要的保温措施,从混凝土拌合、浇筑和后期养护温度等一系列保温加湿措施,以及现场抽样检测结果等各种数据,进一步证明冬季混凝土施工的可行性。
Concrete construction in winter has always been the difficulty of concrete construction, which is very different from the construction of concrete at room temperature. In this paper, the winter construction example of 0 + 1 # block of main bridge of LJ-11 Sanshui River Super Large Bridge of Xian-Xun Expressway is expounded, and the selection of winter construction methods and key technical measures are expounded. At the same time, through the tenders on various raw materials and equipment to take the necessary insulation measures, from concrete mixing, pouring and post-curing temperature and a series of insulation and humidification measures, as well as on-site sampling results and other data to further prove that winter concrete construction Feasibility.