浅谈高温下大体积混凝土的浇筑技术

Discussion on the pouring technology of mass concrete at high temperature

以凫州大桥主墩承台施工为例,结合工程特点,介绍了高温下大体积混凝土的浇筑技术,从原材料的选用及配合比设计,混凝土供应与浇筑,混凝土结构最高温升与内外温差控制等方面阐述了具体的施工技术措施,并取得了预期效果,为类似工程积累了经验。

Taking main cluster bearing platform construction of Fuzhou bridge as example,combining with engineering characteristic,the pouring technology of mass concrete at high temperature was introduced,the concrete construction technology measures were explained from the selection and mix proportion design of materials,the supply and pouring of concrete,the controlling of maximum temperature rising and temperature difference between inside and outside of concrete structure,and got the desired effect,which accumulated experiences for similar engineering.