早强高性能喷射混凝土在隧道工程中的应用_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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早强高性能喷射混凝土在隧道工程中的应用

Application of early strength and high-performance shotcrete in tunnel engineering

2025年第4期

高性能喷射混凝土；减水剂；速凝剂；抗压强度；早期强度；回弹率

High-performance shotcrete; Water reducing agent; Flash setting admixture; Compressive strength; Early strength; Rebound rate

2025年第4期

10.19761/j.1000-4637.2025.04.077.04

邓怡玄1，李泰山1，刘远1，王康伏2，罗素琼3

1.贵州天威建材科技有限责任公司，贵州贵阳 550025；2.中铁五局集团成都工程有限责任公司，四川成都 610000；3.贵州铁建工程质量检测咨询有限公司，贵州贵阳 550000

邓怡玄1，李泰山1，刘远1，王康伏2，罗素琼3

邓怡玄,李泰山,刘远,等.早强高性能喷射混凝土在隧道工程中的应用[J].混凝土与水泥制品,2025(4):77-80.

DENG Y X,LI T S,LIU Y,et al.Application of early strength and high-performance shotcrete in tunnel engineering[J].China Concrete and Cement Products,2025(4):77-80.

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摘要：依托某隧道工程，对比研究了不同减水剂（普通、专用）和液体无碱速凝剂（HQ-241、TS9）对喷射混凝土拌合物性能、初凝时间、回弹率和抗压强度的影响。结果表明：与采用普通减水剂和HQ-241速凝剂的喷射混凝土相比，采用专用减水剂和TS9速凝剂的喷射混凝土的综合性能较好，其拌合物性能能够维持2 h内基本一致，泵送压力低于10 MPa，回弹率低于10%，8 h抗压强度为5.6 MPa，1、3、7、28 d抗压强度分别为18.6、31.2、38.9、48.2 MPa。 Abstract: Based on a certain tunnel project, a comparative study was conducted on the effects of various water reducing agents(ordinary and special) and liquid alkali-free flash setting admixture(HQ-241 and TS9) on the mixture performance, initial setting time, rebound rate, and compressive strength of shotcrete. The results show that, compared with the shotcrete using ordinary water reducing agent and HQ-241 flash setting admixture, the shotcrete using special water reducing agent and TS9 flash setting admixture has better comprehensive performance. Its mixture performance can be maintained basically the same within 2 h, with a pumping pressure below 10 MPa, a rebound rate below 10%, 8 h compressive strength of 5.6 MPa, and 1 d, 3 d, 7 d, and 28 d compressive strengths of 18.6 MPa, 31.2 MPa, 38.9 MPa, and 48.2 MPa, respectively.

英文名 : Application of early strength and high-performance shotcrete in tunnel engineering

刊期 : 2025年第4期

关键词 : 高性能喷射混凝土；减水剂；速凝剂；抗压强度；早期强度；回弹率

Key words : High-performance shotcrete; Water reducing agent; Flash setting admixture; Compressive strength; Early strength; Rebound rate

刊期 : 2025年第4期

DOI : 10.19761/j.1000-4637.2025.04.077.04

文章编号 :

基金项目 :

作者 : 邓怡玄1，李泰山1，刘远1，王康伏2，罗素琼3

单位 : 1.贵州天威建材科技有限责任公司，贵州贵阳 550025；2.中铁五局集团成都工程有限责任公司，四川成都 610000；3.贵州铁建工程质量检测咨询有限公司，贵州贵阳 550000

邓怡玄1，李泰山1，刘远1，王康伏2，罗素琼3

邓怡玄,李泰山,刘远,等.早强高性能喷射混凝土在隧道工程中的应用[J].混凝土与水泥制品,2025(4):77-80.

DENG Y X,LI T S,LIU Y,et al.Application of early strength and high-performance shotcrete in tunnel engineering[J].China Concrete and Cement Products,2025(4):77-80.

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引用本文

Abstract: Based on a certain tunnel project, a comparative study was conducted on the effects of various water reducing agents(ordinary and special) and liquid alkali-free flash setting admixture(HQ-241 and TS9) on the mixture performance, initial setting time, rebound rate, and compressive strength of shotcrete. The results show that, compared with the shotcrete using ordinary water reducing agent and HQ-241 flash setting admixture, the shotcrete using special water reducing agent and TS9 flash setting admixture has better comprehensive performance. Its mixture performance can be maintained basically the same within 2 h, with a pumping pressure below 10 MPa, a rebound rate below 10%, 8 h compressive strength of 5.6 MPa, and 1 d, 3 d, 7 d, and 28 d compressive strengths of 18.6 MPa, 31.2 MPa, 38.9 MPa, and 48.2 MPa, respectively.

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