[1]牛荻涛,袁斌,王家滨.盐湖卤水侵蚀喷射混凝土宏观性能及微观结构 [J].西安建筑科技大学学报(自然科学版),2017,49(05):617-0623.[doi:10.15986/j.1006-7930.2017.05.001]
　NIU Ditao,YUAN Bin,WANG Jiabin. Macro performance and microstructure of shotcrete under salt lake brine erosion [J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2017,49(05):617-0623.[doi:10.15986/j.1006-7930.2017.05.001]
点击复制

盐湖卤水侵蚀喷射混凝土宏观性能及微观结构
()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
49
期数:
2017年05期
页码:
617-0623
栏目:
出版日期:
2017-10-28

文章信息/Info

Title:
Macro performance and microstructure of shotcrete under salt lake brine erosion
文章编号:
1006-7930(2017)05-0617-08
作者:
牛荻涛1; 2; 3; 袁斌1; 王家滨1
（1 西安建筑科技大学 土木工程学院，陕西 西安 710055；2 西部绿色建筑重点实验室协同创新中心，陕西 西安 710055；3 结构工程与抗震教育部重点实验室，陕西 西安 710055）
Author(s):
NIU Ditao1; 2; 3;  YUAN Bin1; WANG Jiabin1

(1Department of Civil Engineering，Xi′an Univ of Arch & Tech ，Xi′an 710055，China；
2Collaborative Innovation Center of Key Laboratory of Green Building in Western China，Xi′an 710055，China；
3Key Laboratory of Structural Engineering and Seismic of Ministry of Education，Xi′an 710055，China)
关键词:
喷射混凝土; 干湿循环; 盐湖卤水侵蚀; 微观结构
Keywords:
shotcrete;  wettingdrying cycles;  salt lake brine erosion;  microstructure
分类号:
TU528.53
DOI:
10.15986/j.1006-7930.2017.05.001
文献标志码:
A
摘要:
摘要:通过对普通混凝土、普通喷射混凝土和钢纤维喷射混凝土的质量损失率、相对抗压强度、相对动弹性模量、损伤层厚度、X射线衍射分析(XRD)和扫描电子显微镜(SEM)结果进行分析，研究了(干湿循环+盐湖卤水侵蚀)共同作用下喷射混凝土的宏观性能和微观结构结果表明：宏观性能方面，质量损失率、相对抗压强度和相对动弹性模量均呈现出先增长后下降的趋势，损伤层厚度为普通混凝土<普通喷射混凝土<钢纤维喷射混凝土；微观结构方面，喷射混凝土中发现的侵蚀产物硅灰石膏，其CO2-3来源于混凝土内部分含碳酸盐骨料或干燥过程中发生的碳化，由于侵蚀前普通混凝土和普通喷射混凝土存在很多毛细孔，导致其比受钢纤维约束而较为致密的钢纤维喷射混凝土更易遭受盐湖卤水的侵蚀.
Abstract:

Abstract:The ordinary concrete, ordinary shotcrete and steel fiber shotcrete weight loss ratio, relative compressive strength, relative dynamic elastic modulus, thickness of damaged layer, Xray diffraction analysis (XRD) and scanning electron microscopy (SEM) results are analyzed to study the shotcrete micro performance and microstructure under the combined action of (salt lake brine erosion and wettingdrying cycles) The results show that in the macro properties, weight loss ratio, relative compressive strength and relative dynamic elastic modulus showed increase first and then decrease trend and the thickness of damaged layer for ordinary concrete < ordinary shotcrete < steel fiber shotcrete; In the microstructure, shotcrete corrosion products of thaumasite were found, and the sources of CO2-3is derived from the part containing carbonate aggregate or carbonization in the process of drying of concrete, Because ordinary concrete and shotcrete has many pores before erosion, resulting in them more vulnerability to the salt lake brine erosion than steel fiber shotcrete constrained by the steel fiber.

参考文献/References:

参考文献References
[1]SONG H W，LU S MRepair of a deepmine permanent access tunnel using bolt，mesh and shotcrete[J].Tunnelling and Underground Space Technology，2001，16(3)：235240.
[2]LIU H Y，Small J C，Carter J PFull 3D modelling for effects of tunnelling on existing support systems in the Sydney region[J].Tunnelling and Underground Space Technology，2008，23(4)：399420.
[3]Ahmed Lamis，Ansell AndersVibration vulnerability of shotcrete on tunnel walls during construction blasting[J].Tunnelling and Underground Space Technology，2014，42：105111.
[4] 宋战平，刘京，吴焕通，等 长陡斜井钢纤维喷射混凝土单层衬砌试验研究 [J].西安建筑科技大学学报(自然科学版)，2013，45(3)：348355.
SONG Zhanping，LIU Jing，WU Huantong，et alExperimental research on singlelayer tunnel lining of steel fiber shotcrete and the application in motenlin deviated well[J].Journal of Xi′an University of Architecture & Technology(Natural Science Edition)，2013，45(3)：348355.
[5]杨富民，孙成晓，仇鹏，等高强喷射混凝土在铁路隧道中的应用研究[J].铁道建筑，2015 (10)：111113，131.
YANG Fumin，SUN Chengxiao，QIU Peng，et al. Research on application of high strength shotcrete in railway tunnels[J].Railway Engineering，2015 (10)：111113，131.
[6]Thomas AlunSprayed concrete lined tunnel[M]. Newyork：Taylor＆Francis，2012.
[7]GARY B HPractical tunnel construction[M].Hoboken：Jone Wiley＆Sons，2013.
[8]胡红梅，马保国，钱刚影响地下隧道衬砌混凝土抗蚀性因素的优化设计[J].硅酸盐学报，2008，36(1)：99104.
HU Hongmei，MA Baoguo，QIAN GangOptimum designs of influence factors for the corrosion resistance of concrete lining for underground tunnels[J].Journal of the Chinese Ceramic Society，2008，36(1)：99104.
[9]JENG Fushu，LIN Minglang，YUAN ShihchePerformance of toughness indices for steel fiber reinforced shotcrete[J].Railway Engineering，2002，(17)：6982.
[10]Sahranavard Hassan，Aghanoori RezaUse of polymer fiber (HPP) reinforced shotcrete instead of final lining in khomary tunnel[J].Tunnelling and Underground Space Technology，2006，21(3/4)：342350.
[11]YUN Kyongku，CHOI Sungyong，JUANG Heumyeon. Effects of admixtures on the rheological properties of highperformance wetmix shotcrete mixtures[J].Construction and Building Materials，2015，78：194202.
[12]MALTESE C，PISTOLESI C，BRAVO A，et alA case history: Effect of moisture on the setting behaviour of a Portland cement reacting with an alkalifree accelerator[J].Cement and Concrete Research，2007，37(6)：856865.
[13]杨富民，孙成晓，仇鹏，等液体速凝剂在铁路隧道喷射混凝土中的应用研究[J].铁道建筑，2015 (9)：7477.
YANG Fumin，SUN Chengxiao，QIU Peng，et alStudy on application of liquid accelerating agent in shotcrete of railway tunnels[J].Railway Engineering，2015 (9)：7477.
[14]Adam H，Jirí B，Rudolf HComparison of properties of shotcrete teated using destructive and nondestructive method[J].Procedia Engineering，2013，65：6368.
[15]Stackelberg David，Wilge Boris，Boiko ShimonPrinciples of Monitoring Hardening and Strengthening of Shotcrete[J].Journal of the Chinese Ceramic Society，2014，42(5)：568573.
[16]Bernard Erik StefanAgedependent changes in postcrack performance of fibre reinforced shotcrete linings[J].Tunnelling and Underground Space Technology，2015，49：241248.
[17]Bernard Erik StefanEarlyage load resistance of fibre reinforced shotcrete linings[J].Tunnelling and Underground Space Technology，2008，23：451460.
[18]Bernard Erik StefanInfluence of geometric factor on the punching load resistance of early age fibre reinforced shotcrete lings[J].Tunnelling and Underground Space Technology，2011，26：541547.
[19]NIU Ditao，WANG Youde，MA Rui，et alExperiment study on the failure mechanism of drymix shotcrete under the combined actions of sulfate attack and dryingwetting cycles[J].Construction and Building Materials，2015，81：7480.
[20]Usman Muhammad，Galler RobertLong term deterioration of lining in tunnels[J].International Journal of Rock Mechanics & Mining Sciences，2013，64：8489.
[21]LEE Sangpil，KIM Donghyun，RYU Jonghyun，et alAn experimental study on the durability of high performance shotcrete for permanent tunnel support[J].Tunnelling and Underground Space Technology，2006，21：431436.
[22]CHEN Jianxun，DENG Xianghui，LUO Yanbin，et alInvestigation of microstructural damage in shotcrete under a freeze thaw environment[J].Construction and Building Materials，2015，83：275282.
[23]WANG Jiabin，NIU Ditao，DING Sha，et alMicrostructure，permeability and mechanical properties of accelerated shotcrete at different curing age[J].Construction and Building Materials，2015，78：203216.
[24]Crammond N AThaumasite form of sulfate attack in the UK[J].Cement and Concrete Composites，2003，25(8)：809818.

相似文献/References:

[1]元成方,牛荻涛,齐广政.干湿循环机制下碳化混凝土氯离子侵蚀试验研究[J].西安建筑科技大学学报(自然科学版),2012,44(03):339.[doi:10.15986/j.1006-7930.2012.03.006]
　YUAN Cheng-fang,NIU Di-tao,QI Guang-zheng.Experimental study on chloride penetration into concrete after carbonation under wet and dry cycle mechanism[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2012,44(05):339.[doi:10.15986/j.1006-7930.2012.03.006]
[2]吴燕开,乔晓龙,李丹丹,等.干湿循环下钢渣粉水泥改良膨胀土室内试验研究[J].西安建筑科技大学学报(自然科学版),2021,53(03):319.[doi:10.15986/j.1006-7930.2021.03.002]
　WU Yankai,QIAO Xiaolong,LI Dandan,et al.Experimental study on expansive soil improved by steel slag powder-cement under dry-wet cycles[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2021,53(05):319.[doi:10.15986/j.1006-7930.2021.03.002]

备注/Memo

备注/Memo:
收稿日期:2016-11-04 修改稿日期:2017-08-22
基金项目:国家自然科学基金(51278403);教育部创新团队发展计划(IRT13089)
第一作者:牛荻涛（1963-），男，博士，教授，博导，主要从事混凝土结构耐久性方面的研究. E-mail：niuditao@163.com
更新日期/Last Update: 2017-11-09