[1]何承义,王景波,张显军,等.基于养护制度的冬季施工桥梁混凝土耐久性研究[J].地震工程与工程振动,2017,37(02):205-210.[doi:10.13197/j.eeev.2017.02.205.hecy.024]
 HE Chengyi,WANG Jingbo,ZHANG Xianjun,et al.Research on the durability of bridge concrete in winter construction based on curing condition[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2017,37(02):205-210.[doi:10.13197/j.eeev.2017.02.205.hecy.024]
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基于养护制度的冬季施工桥梁混凝土耐久性研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
37
期数:
2017年02期
页码:
205-210
栏目:
论文
出版日期:
2017-04-01

文章信息/Info

Title:
Research on the durability of bridge concrete in winter construction based on curing condition
作者:
何承义 王景波 张显军 杨扬
黑龙江工程学院 土木与建筑工程学院, 黑龙江 哈尔滨 150050
Author(s):
HE Chengyi WANG Jingbo ZHANG Xianjun YANG Yang
Department of Civil Engineering, Heilongjiang Institute of Technology, Harbin 150050, China
关键词:
寒区养生耐久性力学性能氯离子扩散冻融循环
Keywords:
the cold regioncuringdurability of concretemechanical propertieschloride diffusionfreeze-thaw cycle
分类号:
TU528
DOI:
10.13197/j.eeev.2017.02.205.hecy.024
摘要:
寒区桥梁混凝土所处的环境对耐久性指标有更高要求,通过力学性能试验、氯离子扩散系数快速测定(RCM法)、冻融循环试验对不同养护温度、湿度组合的桥梁用混凝土进行研究,结果表明,较低温度养护时,混凝土抗压强度增长低于标准养护,先期的高温干燥环境对混凝土抗渗性能不利,在60℃相对湿度(RH)95%环境养生(高温高湿)抗冻融性能最优。选择合适的温度、湿度组合养护对寒区桥梁混凝土冬季施工十分必要。
Abstract:
Concrete bridges in the cold region environment have higher requirements for durability,bridges concrete of different curing temperature and humidity combination are studied,through experiments of the mechanical properties and freeze-thaw damage and chloride ion erosion.The experiment result show that the compressive strength of concrete was below standard curing at low temperature curing,high temperature and dry environment unfavorable to the impermeability of concrete,freeze-thaw resistance performance at a temperature of 60℃ and relative humidity (RH)95% environment.Choose the right combination of temperature and humidity on the bridge in the cold region construction is necessary.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-1-14;改回日期:2017-2-21。
基金项目:黑龙江省自然科学基金项目(E201325)
作者简介:何承义(1962-),男,教授,硕士,主要从事土木工程桥梁研究.E-mail:hrb7960@aliyun.com
更新日期/Last Update: 1900-01-01