纤维增强水泥混凝土桥面铺装施工过程水化热特性分析研究  

Analysis of Hydration Heat Characteristics in Fiber-Reinforced Cement Concrete Bridge Deck Pavement Construction

作　　者：岳庭 李汉军 于昊男 赵京 刘家瑞 王文盛[3] YUE Ting;LI Hanjun;YU Haonan;ZHAO Jing;LIU Jiarui;WANG Wensheng(China Railway Investment Group Co.,LTD.,Beijing 100039,China;Jilin China Railway Expressway Co.,LTD.,Changchun 130115,China;Jilin University,Changchun 130022,China)

机构地区：[1]中铁投资集团有限公司,北京100039 [2]吉林中铁高速公路有限公司,长春130115 [3]吉林大学,长春130022

出　　处：《长春工程学院学报(自然科学版)》2025年第1期30-33,共4页Journal of Changchun Institute of Technology:Natural Sciences Edition

基　　金：吉林省交通运输重点科技项目(2023ZDGC-1-3)。

摘　　要：为对纤维增强水泥混凝土桥面铺装施工过程的水化热及其有限元数值模拟进行分析,对比研究了常规C50混凝土桥面铺装施工过程的水化热特性。结果表明:中部测点更能反映整体温度,纤维增强水泥混凝土因其配比和胶凝体系与C50混凝土不同,使其水化热释放持久,低温下保温佳;C50混凝土施工需防环境温差裂缝。有限元模拟显示两者均在浇筑后12~15 h达到温峰,C50混凝土因低温施工及养护因素影响与实测温差大,对比分析结果可为实际工程的现场施工及防护提供参考。To analyze the hydration heat behavior and conduct finite element numerical simulations of fiber-reinforced cement concrete(FRCC)bridge deck pavement construction,a comparative study is performed on the hydration heat characteristics of conventional C50 concrete pavement during similar construction processes.The results indicate that central measurement points more accurately reflect the overall temperature distribution.FRCC exhibits prolongs hydration heat release and superior thermal insulation under low-temperature conditions,attributes to its distinct mix design and cementitious system compared to C50 concrete.C50 concrete requires stringent measures to prevent environmental temperature differential-induced cracks.Both materials reach peak temperatures 12~15 hours post-pouring.However,C50 concrete simulations exhibits greater temperature differentials compared to field measurements,likely due to low-temperature construction and curing constraints.These findings provide actionable references for on-site construction protocols and thermal crack prevention in practical engineering applications.

关 键 词：纤维增强水泥混凝土 桥面铺装 水化热 数值分析 

分 类 号：TU528.58[建筑科学—建筑技术科学]