•  
  •  
 

Corresponding Author

王琨,女,博士,教授.E-mail:wangkun@sdjtu.edu.cn

Abstract

To study the influence of different mineral admixtures on the properties of shotcrete,the effects of four kinds of mineral admixtures including fly ash,silica fume,metakaolin,and carbon black on the rebound rate,one-shot thickness,and compressive strength of shotcrete were analyzed through tests on concrete rebound rate,one-shot thickness,and compressive strength.The results show that:① as the content of carbon black,silica fume,and metakaolin increases from 5% to 10%,the rebound rate of shotcrete decreases by 25.76%,16.46%,and 16.70%,respectively;② carbon black and silica fume have a good effect on increasing the one-shot thickness of concrete.When the content of carbon black and silica fume is 10%,the one-shot thickness exceeds 35 cm;③ carbon black can easily cause strength loss in shotcrete.The compressive strength of concrete added with 10% carbon black decreases by 10.7 MPa and 15.2 MPa after 7 days and 28 days,respectively.This study provides theoretical support for the application of fly ash,silica fume,carbon black,and metakaolin in shotcrete.

Publication Date

6-23-2025

DOI

10.14048/j.issn.1671-2579.2025.03.010

First Page

83

Last Page

88

Submission Date

August 2025

Reference

[1]刘继强,朱旻,郝琨,等.上方基坑施工引起新运营隧道变形与病害分析 [J].中外公路,2024,44(3):202-210.LIU Jiqiang,ZHU Min,HAO Kun,et al.Deformation and damage characteristics of a newly operated tunnel caused by above foundation pit construction [J].Journal of China & Foreign Highway,2024,44(3):202-210.
[2]吕刚,刘建友,于晨昀,等.铁路隧道绿色低碳建造技术工程实践与展望 [J].隧道建设 (中英文 ),2024,44(4):633-642.LYU Gang,LIU Jianyou,YU Chenyun,et al.Practice and prospect of green and low-carbon construction technology for railway tunnels [J].Tunnel Construction,2024,44(4):633-642.
[3]NING F W,SUI W,BAI Y,et al.Mass distribution characteristics of wet-mix shotcrete during spraying process and adhesion process [J].Construction and Building Materials,2024,433:136485.
[4]陈雪峰,毛金龙,袁立,等.单层衬砌在梨花井隧道中的应用[J].中外公路,2018,38(2):182-185.CHEN Xuefeng,MAO Jinlong,YUAN Li,et al.Application of single layer lining in Lihuajing tunnel [J].Journal of China & Foreign Highway,2018,38(2):182-185.
[5]MORTON J.New shotcrete solutions spray more concrete[J].Engineering and Mining Journal,2023,224(11):24-29.
[6]彭成炎,李晓龙,刘杨.喷射混凝土回弹量控制技术研究[J].公路,2024,69(5):403-408.PENG Chengyan,LI Xiaolong,LIU Yang.Research on springback control technology of shotcrete [J].Highway,2024,69(5):403-408.
[7]CUI Y,TAN Z S,ZHOU Z L,et al.Preparation and application of low rebound liquid alkali-free accelerator for shotcrete [J].Construction and Building Materials,2023,367:130220.
[8]王家赫,谢永江,冯仲伟,等.低回弹高早强喷射混凝土技术与工程应用 [J].混凝土与水泥制品,2023 (2):5-9.WANG Jiahe,XIE Yongjiang,FENG Zhongwei,et al.Technology and engineering application of shotcrete with low rebound and high early strength [J].China Concrete and Cement Products,2023 (2):5-9.
[9]张 建.公 路 隧 道 高 性 能 湿 喷 混 凝 土 配 合 比 研 究 与 应 用[J].公路交通技术,2023,39(2):152-158.ZHANG Jian.Research and application of high performance wet shotcrete mix ratio in highway tunnels [J].Technology of Highway and Transport,2023,39(2):152-158.
[10]王巧,王祖琦,宋普涛,等.低水胶比湿喷混凝土的可喷性能研究 [J].新型建筑材料,2018,45(6):1-4,10.WANG Qiao,WANG Zuqi,SONG Putao,et al.Study on the shootability of wet-mix shotcrete in low water-binder ratio[J].New Building Materials,2018,45(6):1-4,10.
[11]PAN G,LI P C,CHEN L J,et al.A study of the effect of rheological properties of fresh concrete on shotcrete-rebound based on different additive components [J].Construction and Building Materials,2019,224:1069 -1080.
[12]汪学清,周坤鹏,张志高,等.磁化水降低喷射混凝土回弹量的试验研究 [J].矿冶工程,2019,39(1):29-31,35.WANG Xueqing,ZHOU Kunpeng,ZHANG Zhigao,et al.Experimental study on reducing shotcrete rebound by using magnetized water [J].Mining and Metallurgical Engineering,2019,39(1):29-31,35.
[13]赵宇翔,王靖,刘俊元,等.新型喷射混凝土复合减弹剂的研究与应用 [J].混凝土世界,2022 (5):23-25.ZHAO Yuxiang,WANG Jing,LIU Junyuan,et al.Research and application of new compound rebound reducing agents in sprayed concrete [J].China Concrete,2022 (5):23-25.
[14]麦健,张卫强,程寿山,等.回弹抑制剂对湿喷混凝土性能影响规律 [J].公路交通科技,2023,40(5):124-131.MAI Jian,ZHANG Weiqiang,CHENG Shoushan,et al.Influence of rebound inhibitor on performance of wet spraying concrete [J].Journal of Highway and Transportation Research and Development,2023,40(5):124-131.
[15]国家发展改革委.《关于“十四五 ”大宗固体废弃物综合利用的指导意见 》[J].黄金科学技术,2021,29(2):286.Nation Development and Reform Commission.Guiding opinions on comprehensive utilization of bulk solid wastes in the 14th Five-Year Plan [J].Gold Science and Technology,2021,14(4):1-3.
[16]罗小博,宋彧,郭启明,等.粉煤灰掺量对混凝土力学性能影响的试验研究 [J].混凝土,2021 (8):88-90,95.LUO Xiaobo,SONG Yu,GUO Qiming,et al.Experimental study of influence of the mechanical behavior about fly ash content on concrete [J].Concrete,2021 (8):88-90,95.
[17]柴明明,李世佳,杨飞雄,等.粉煤灰和聚丙烯纤维对喷射混凝土性能影响研究 [J].公路交通科技,2022,39(增刊 2):119-124.CHAI Mingming,LI Shijia,YANG Feixiong,et al.Study on the influence of fly ash and polypropylene fiber on the properties of shotcrete [J].Journal of Highway and Transportation Research and Development,2022,39(sup 2):119-124.[18]范志勇,石妍,罗山,等.矿物掺合料在喷射混凝土中的应用研究 [J].水利水电快报,2023,44(4):103-108.FAN Zhiyong,SHI Yan,LUO Shan,et al.Application research of mineral admixture used in shotcrete [J].Express Water Resources & Hydropower Information,2023,44(4):103-108.
[19]杨帆,张友锋,余姚.低温养护下矿物掺合料湿喷混凝土力 学 性 能 及 配 比 优 化 研 究 [J].硅 酸 盐 通 报,2022,41(5):1589 -1598.YANG Fan,ZHANG Youfeng,YU Yao.Mechanical properties and ratio optimization of mineral admixture wet shotcrete under low temperature curing [J].Bulletin of the Chinese Ceramic Society,2022,41(5):1589 -1598.
[20]阎王虎,赵翔,潘慧敏,等.基于胶凝材料颗粒匹配的隧道喷 射 混 凝 土 配 合 比 优 化 设 计 [J].中 外 公 路,2022,42(2):223-227.YAN Wanghu,ZHAO Xiang,PAN Huimin,et al.Optimal design of tunnel shotcrete mix ratio based on cementitious material particle matching [J].Journal of China & Foreign Highway,2022,42(2):223-227.
[21]中国建筑材料科学研究总院.喷射混凝土用速凝剂:GB/T 35159 —2017 [S].北京:中国标准出版社,2018.China Building Materials Academy.Flash setting admixtures for shotcrete:GB/T 35159 —2017 [S].Beijing:Standards Press of China,2018.
[22]中国建筑科学研究院.普通混凝土配合比设计规程:JGJ 55—2011 [S].北京:中国建筑工业出版社,2011.China Academy of Building Research.Specification for mix proportion design of ordinary concrete:JGJ 55—2011[S].Beijing:China Architecture & Building Press,2011.
[23]厦门市建筑科学研究院集团股份有限公司,厦门特房建设工程集团有限公司.喷射混凝土应用技术规程:JGJ/T 372—2016 [S].北京:中国建筑工业出版社,2016.Xiamen Academy of Building Research Group Co.,Ltd.,Xiamen Tefang Construction Engineering Group Co.,Ltd..Technical specification for app 1ication of sprayed concrete:JGJ/T 372—2016 [S].Beijing:China Architecture & Building Press,2016.
[24]中国建筑科学研究院有限公司.混凝土物理力学性能试验方法标准:GB/T 50081 —2019 [S].北京:中国建筑工业出版社,2019.China Academy of Building Research.Standard for test methods of concrete physical and mechanical properties:GB/T 50081 —2019 [S].Beijing:China Architecture & Building Press,2019.

Share

COinS