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页数:6页
时间:2019-02-04
《掺阻锈剂掺合料海水海砂混凝土护筋性探讨》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、第15卷第1期建筑材料学报Vo1.15。No.1学兔兔www.xuetutu.com2012年2月joURNALOFBUILDINGMATERIALSFeb.,2O12文章编号:1007—9629(2012)01—0069—06掺阻锈剂掺合料海水海砂混凝土护筋性探讨周俊龙,欧忠文,江世永。,陈乔,陈云,陈寒斌,许春霞(1.四川省住房和城乡建设厅建筑管理处,四川成都610041;2.中国人民解放军后勤工程学院化学与材料工程系,重庆401331;3.中国人民解放军后勤工程学院训练部,重庆401331)摘要:测试了海水海
2、砂胶砂中钢筋的极化电位和失重率,观察了钢筋的锈蚀情况,研究了不同掺合料和阻锈剂对海水海砂混凝土护筋性的影响.结果表明:粉煤灰、矿渣对海水海砂混凝土护筋性改善作用有限,而偏高岭土的改善作用显著,钢筋极化电位明显正移;阻锈剂中三乙醇胺对海水海砂混凝土护筋性改善作用明显;复掺偏高岭土(20,质量分数)和三乙醇胺(1.5,质量分数)后,海水海砂混凝土的护筋性明显提高,钢筋极化电位与淡水标准砂配制的普通混凝土相近,钢筋失重率明显降低,标准养护420d后钢筋无任何锈蚀.关键词:海水海砂混凝土;钢筋;极化电位;护筋性;掺合料;阻
3、锈剂中图分类号:TU528.571文献标志码:Adoi:10.3969/j.issn.1007—9629.2012.01.013DiscussionofRebar-ProtectingPropertiesofSeawater-SeasandConcreteMixedwithAdmixtureandCorrosionInhibitorZHOUJ.n—long,OUZhong—wen,JIANGShi—yong。,CHENQiao,CHENYun。CHENHan—bin。XUChun—xia(1.ManagementD
4、ivisionofConstructionEngineering,SichuanProvinceHousingandUrban-RuralConstructionDepartment,Chengdou610041,China;2.ChemistryandMaterialsEngineeringDepartment,ChinesePeople’SIiberationArmyLogisticalEngineeringUniversity,Chongqing401331,China;3.TrainingDepartmen
5、t,ChinesePeople’SLiberationArmyLogisticalEngineeringUniversity,Chongqing401331,China)Abstract:Theeffectofadmixtureandcorrosioninhibitoronrebar—protectingpropertiesofseawater—sea—sandconcretewasstudiedbytestingpolarizationpotentialandmasslossofrebarinseawater。s
6、easandmor——tar.Itisconcludedthattheflyash,slaghavelimitedimprovementontherebar—protectingpropertiesofseawater—seasandconcretewhereasmetakaolinhasamarkedeffectofimprovement.WhenmetakaoliniSadded,therebarpolarizationpotentialobviouslymovestothepositive.Inadditio
7、n,triethanolaminecorro—sioninhibitorhasthegoodeffectonimprovingtherebar——protectingpropertiesofseawater——seasandcon—crete.Thecombinationofmetakaolin(20,bymass)andtriethanolamine(1.5,bymass)hasansignifi—canteffectontherebar—protectingpropertiesofseawater—seasan
8、dconcrete,therebarpolarizationpotentialisthesameastheordinaryconcretemadewithfreshwaterandsand,rebarmasslossissignificantlyre—duced,rebarcuredfor420diSnotcorrodedatal1.Keywords:sea
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