C50级自锚梁混凝土综合蓄热法冬期施工技术  

Construction Technology for Comprehensive Thermal Storage of C50 Self-anchored Concrete in Winter

作　　者：江守恒[1,2] 董淑慧[2] 朱卫中 

机构地区：[1]黑龙江省寒地建筑科学研究院,哈尔滨150080 [2]哈尔滨工业大学,150001 [3]黑龙江省城镇建设研究所,哈尔滨150001

出　　处：《混凝土与水泥制品》2017年第10期77-81,共5页China Concrete and Cement Products

基　　金：黑龙江省科研机构创新能力提升专项计划(YC2015D004)

摘　　要：结合哈尔滨市阳明滩自锚式悬索桥自锚梁(过渡孔混凝土梁)C50级混凝土冬期施工所采取的综合蓄热法选择与实施过程,分析了在严寒地区初冬时节C50级混凝土配合比设计思路、冬期施工混凝土防冻害综合蓄热养护方法以及亚高强级大体积混凝土冬期施工过程中的温度控制与监测过程,提出了极端环境下重大工程混凝土冬期施工的技术条件,可供类似工程冬期施工参考。In this paper, a combination of the application of comprehensive thermal storage method and the winter construction implementation process in Grade C50 self-anchored suspension bridge of Harbin Yangming Beach Bridge is presented, the concrete mix design method of grade C50 concrete in severe cold area in early winter, the anti-frost damage comprehensive thermal storage method winter construction technology and the temperature control and monitoring process of sub-strength mass concrete in winter construction process are analyzed, the technology requirements of the winter construction of key project under an extreme environment were proposed, which provides reference for similar winter construction projects.

关 键 词：负温混凝土 冬期施工 综合蓄热法 温度控制 

分 类 号：TU74[建筑科学—建筑技术科学]