新老混凝土黏结力学性能的时间效应研究

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英文篇名：Time Effect on Mechanical Properties of Agglutinating New Concrete and Old Concrete 作者：乔连朋 ; 袁群 ; 张国岑 ; 曹宏亮 ; 冯凌云 ; 马莹 英文作者：QIAO Lianpeng;YUAN Qun;ZHANG Guocen;CAO Hongliang;FENG Lingyun;MA Ying;Henan Vocational College of Water Conservancy and Environment;Key Laboratory on Safety Engineering of Water Conservancy Project of Henan Province;Henan Provincial Water Conservancy Research Institute;Baiguishan Reservoir Irrigation Works Bureau of Henan Province; 关键词：新老混凝土黏结 ; 碳化混凝土 ; 界面剂 ; 混凝土龄期 ; 黏结力学性能 英文关键词：new and old concrete sticking;;carbonized concrete;;boundary agent;;concrete age;;sticking intensity 中文刊名：RMHH 英文刊名：Yellow River 机构：河南水利与环境职业学院;河南省水利工程安全技术重点实验室;河南省水利科学研究院;河南省白龟山水库灌溉工程管理局; 出版日期：2017-04-10 出版单位：人民黄河 年：2017 期：v.39;No.380 基金：河南省重点科技攻关项目(092102310193) 语种：中文; 页：RMHH201704026 页数：4 CN：04 ISSN：41-1128/TV 分类号：115-118

摘要

采用碳化箱快速碳化、人工加机械复合的凿毛方法处理老混凝土黏结面,通过试验研究了新混凝土与碳化混凝土黏结的力学性能及随龄期的变化规律。结果表明:新老混凝土黏结力学性能较新、老混凝土本体的弱;老混凝土的碳化可以增强新老混凝土的黏结力学性能;随着龄期的延长,新老混凝土的黏结力学性能也在增强;龄期较短时,水泥净浆界面剂的效果优于硅灰界面剂,当龄期达到180 d时,硅灰界面剂的效果优于水泥净浆界面剂。
        This research studied the new concrete's dynamics performance when sticking with carbonized concretes and its rules of changing with a-ges. In the test,the concrete bond surface was treated by using the quick carbonization of carbonization chamber,and the manual and mechanicalcomposite. The result shows that new-old concrete's sticking intensity is smaller than that of new and old concrete themselves. Old concrete's car-bonization is able to improve mixed concrete's sticking intensity which grows as time goes. When the age is small,pure cement boundary agents' performance is better than that of silicon powder agent,when it is 180 d,pure cement boundary agents' performance is worse than that of siliconpowder agent.

引文

[1]赵国藩,袁群,赵志方,等.新老混凝土黏结机理研究[R].大连:大连理工大学,2000:57.
    [2]马峰,袁群,宋铁岭,等.新混凝土与碳化混凝土黏结抗折强度试验研究[J].人民黄河,2012,34(3):123-127.
    [3]赵志芳,赵国藩,黄承逵.新老混凝土黏结的劈拉性能研究[J].工业建筑,1999,29(11):56-59.
    [4]南京水利科学研究院.水工混凝土试验规程:DL-T 5150-2001[S].北京:中国电力出版社,2002:28.
    [5]马峰.新混凝土与碳化混凝土黏结的力学性能试验研究[D].郑州:华北水利水电学院,2011:40.
    [6]谢友均,马昆林,龙广成,等.矿物掺合料对混凝土中氯离子渗透性的影响[J].硅酸盐学报,2006,34(11):1345-1350.