摘要
随着我国基础设施建设的迅猛发展,大体积混凝土的应用越发普遍。大体积混凝土施工过程中,由于水泥水化会产生大量的水化热,使混凝土内部温度升高、内外温差增大,导致混凝土开裂,影响工程结构物的安全性和耐久性。通过调查整理大体积混凝土水化温升的发展历程以及研究进展,探究大体积混凝土在设计、混凝土拌和施工等阶段的水化温升抑制技术措施,并对各种技术措施的抑制效果进行对比分析,从而提出符合工程实际的技术措施,为大体积混凝土的工程建设提供依据。
With the rapid development of infrastructure construction in China,the application of mass concrete has become increasingly widespread.During the construction of mass concrete structures,substantial hydration heat generated by cement hydration induces internal temperature elevation and amplifies temperature differentials between interior and exterior regions,potentially leading to concrete cracking that compromises structural safety and durability.Through a comprehensive review of historical developments and research advancements in hydration temperature control for mass concrete,this study systematically investigates temperature suppression techniques implemented during the design phase,concrete mixing stage,and construction processes.A comparative analysis of the effectiveness of various technical measures is conducted,thereby proposing practical technical measures aligned with engineering requirements.These findings provide theoretical and practical references for mass concrete engineering applications.
作者
黄强
胡悦
曹锋
Huang Qiang;Hu Yue;Cao Feng(China Railway 21st Bureau Group 4th Engineering Co.,Ltd.,Xining 810000,China;School of Civil and Transportation Engineering,Qinghai Minzu University,Xining 810000,China)
出处
《青海科技》
2025年第2期135-144,共10页
Qinghai Science and Technology
基金
中铁二十一局集团有限公司科研基金项目“石背水库大体积混凝土温控防裂精细化策略与施工控制关键技术研究”(24B-2)。
关键词
大体积混凝土
水化温升
抑制技术
水化热
温度裂缝
Mass concrete
Hydration temperature rise
Suppression techniques
Hydration heat
Temperature cracks
作者简介
黄强(1989-),男,工程师,主要从事大体积混凝土的研究。E-mail:714030987@qq.com;通信作者:曹锋(1989-),男,博士,副教授,主要从事混凝土材料的研究。E-mail:caofeng_qhmu@163.com。
