现浇混凝土冬期测温方法的改进

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摘要：混凝土强度的增长通过混凝土中水泥的水化反应来实现，其增幅与养护温度正相关。《建筑工程冬
期施工规程》(JGJT104一2011)给出了具体转换的计算方法。通过等效换算，可建立一般自然环境下养护龄期与
标准恒温养护龄期的对应关系。通过分析公式实际应用时测温条件与方程建立的差异，对应用成熟度曲线方程
的冬期施工测温方法提出了与之相适应的改进方法。
关键词：冬期施工：水化程度：成熟度：度时积；早期强度：测温
中图分类号：TU755.8
文献标识码：B
文章编号：1000-4726(2013)11-1008-03
IMPROVEMENT OF TEMPERATURE MEASUREMENT METHOD FOR
CAST-IN-PLACE CONCRETE IN WINTER
HU Yu-xin',SUN Guang"
(1.China Building Construction Institute,100039,Beijing.China;
2.Beijing Construction Engineering Group Co..Ld..100055,Beijing.China)
Abstract:Increase of concrete strength is realized through hydration reaction of cement in the concrete
and it is in positive correlation with curing temperature.Specificotion for Winter Construction of Building
Engineering (JGJ/T 104-2011)specifies the calculation method for conversion between these two factors.
Through equivalent conversion,the relationship between curing age under general natural environment and
curing age under standard constant temperature.Related methods are put forward for improvement of
temperature measurement method for winter construction which uses maturity curve equation after analysis of the
difference between the temperature measurement conditions under which the equation is used and the conditions
under which the equation is established.
Key words:winter construction;degree of hydration;maturity;temperature-time product;early strength;
temperature measurement
冬期采用蓄热法和综合蓄热法施工的混凝土，早
条件以及水化热所营造的内部正温养护环境：结构
期强度发展依赖于人模成型时的初始蓄热、外部保温
入模正温逐渐降至环境负温期间，早期强度须达到
收精日期：2013-06-04
冻临界强度。所以从混凝土入模到内部温度降至零
作者葡介：胡裕新(1951-)，男，天神人，教授级高级工师，e-ma止：
这个阶段对判定混凝土施工质量至关重要。
huyuxin@yeah.net.