不同掺合料对喷射钢纤维混凝土性能的影响_《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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不同掺合料对喷射钢纤维混凝土性能的影响

Effect of different admixtures on the properties of shotcrete with steel fibres

2024年第3期

隧道支护；喷射钢纤维混凝土；掺合料；工作性；力学性能；耐久性能

Tunnel support; Shotcrete with steel fibre; Admixture; Workability; Mechanical property; Durability

2024年第3期

10.19761/j.1000-4637.2024.03.057.05

国家自然科学基金资助项目（51778621）。

翟军强1，李向龙1，周霄骋2，秦世杰3，*，秦鸿根2

1.中交二公局第四工程有限公司，河南洛阳 471002；2.东南大学材料科学与工程学院，江苏南京 211189；3.江苏道智公路科学研究院有限公司，江苏南京 210031

翟军强1，李向龙1，周霄骋2，秦世杰3，*，秦鸿根2

翟军强,李向龙,周霄骋,等.不同掺合料对喷射钢纤维混凝土性能的影响[J].混凝土与水泥制品,2024(3):57-61.

ZHAI J Q,LI X L,ZHOU X C,et al.Effect of different admixtures on the properties of shotcrete with steel Fibres[J].China Concrete and Cement Products,2024(3):57-61.

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摘要：依托某重点工程隧道穹顶支护用高性能喷射混凝土的性能要求，配制了C40喷射钢纤维混凝土，研究了掺合料的种类（粉煤灰、专用掺合料、抗裂剂）对喷射钢纤维混凝土工作性、力学性能和耐久性能的影响。结果表明：掺不同掺合料喷射钢纤维混凝土的坍落度均满足（180±20）mm的要求，表观密度稳定在2 530 kg/m3左右，抗压强度均满足设计强度等级要求，耐久性能均较好；另外，与掺粉煤灰的喷射钢纤维混凝土相比，掺专用掺合料或抗裂剂的喷射钢纤维混凝土的保水性和黏聚性均较好，力学性能和耐久性能基本均较优，抗渗等级分别达到了P11和P10，28 d碳化深度均小于12.0 mm。 Abstract: Based on the performance requirements of high-performance shotcrete for tunnel dome support in a key engineering project, C40 shotcrete with steel fibers was prepared. The effects of different types of admixtures (fly ash, special admixtures, anti-cracking agents) on the workability, mechanical properties, and durability of shotcrete with steel fibers were studied. The results show that the slump of shotcrete with steel fibers mixed with different admixtures meets the requirement of (180±20)mm, the apparent density remains stable at around 2 530 kg/m3, the compressive strength meets the design strength grade requirements, and the durability performance is good. In addition, compared with the shotcrete with steel fibers mixed with fly ash, the shotcrete with steel fibers mixed with special admixtures or anti-cracking agents has better water retention and cohesion, and basically better mechanical properties and durability, and the impermeability level reaches P11 and P10 respectively, and the 28 d carbonation depth is less than 12.0 mm.

英文名 : Effect of different admixtures on the properties of shotcrete with steel fibres

刊期 : 2024年第3期

关键词 : 隧道支护；喷射钢纤维混凝土；掺合料；工作性；力学性能；耐久性能

Key words : Tunnel support; Shotcrete with steel fibre; Admixture; Workability; Mechanical property; Durability

刊期 : 2024年第3期

DOI : 10.19761/j.1000-4637.2024.03.057.05

文章编号 :

基金项目 : 国家自然科学基金资助项目（51778621）。

作者 : 翟军强1，李向龙1，周霄骋2，秦世杰3，*，秦鸿根2

单位 : 1.中交二公局第四工程有限公司，河南洛阳 471002；2.东南大学材料科学与工程学院，江苏南京 211189；3.江苏道智公路科学研究院有限公司，江苏南京 210031

翟军强1，李向龙1，周霄骋2，秦世杰3，*，秦鸿根2

翟军强,李向龙,周霄骋,等.不同掺合料对喷射钢纤维混凝土性能的影响[J].混凝土与水泥制品,2024(3):57-61.

ZHAI J Q,LI X L,ZHOU X C,et al.Effect of different admixtures on the properties of shotcrete with steel Fibres[J].China Concrete and Cement Products,2024(3):57-61.

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摘要

参数

结论

参考文献

引用本文

Abstract: Based on the performance requirements of high-performance shotcrete for tunnel dome support in a key engineering project, C40 shotcrete with steel fibers was prepared. The effects of different types of admixtures (fly ash, special admixtures, anti-cracking agents) on the workability, mechanical properties, and durability of shotcrete with steel fibers were studied. The results show that the slump of shotcrete with steel fibers mixed with different admixtures meets the requirement of (180±20)mm, the apparent density remains stable at around 2 530 kg/m³, the compressive strength meets the design strength grade requirements, and the durability performance is good. In addition, compared with the shotcrete with steel fibers mixed with fly ash, the shotcrete with steel fibers mixed with special admixtures or anti-cracking agents has better water retention and cohesion, and basically better mechanical properties and durability, and the impermeability level reaches P11 and P10 respectively, and the 28 d carbonation depth is less than 12.0 mm.

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[1] GALAN I,BALDERMANN A,KUSTERLE W,et al.Durability of shotcrete for underground support-review and update[J].Construction and Building Materials,2019,202:465-493.
[2] ?譒UPUT J S,MLADENOVIC A.CERNILOGAR M,et al.Deterioration of mortar caused by the formation of thaumasite on the limestone cladding of some Slovenian railway tunnels[J].Cement and Concrete Composites,2003,25(8):1141-1145.
[3] ROMER M,HOLZER L,PFIFFNER M.Swiss tunnel structures: concrete damage by formation of thaumasite[J].Cement and Concrete Composites,2003,25(8):1111-1117.
[4] MITTERMAYR F,BALDERMANN A,KURTA C,et al.Evaporation-a key mechanism for the thaumasite form of sulfate attack[J].Cement and Concrete Research,2013,49:55-64.
[5] HU Z,DING H,LAI J X,et al.The durability of shotcrete in cold region tunnel: a review[J].Construction and Building Materials,2018,185:670-683.
[6] WON J P,HWANG U J,LEE S J.Enhanced long-term strength and durability of shotcrete with high-strength C12A7 mineral-based accelerator[J].Cement and Concrete Research,2015,76:121-129.
[7] WANG J B,LIU D T,WANG Y,et al.Durability performance of brine-exposed shotcrete in salt lake environment[J].Construction and Building Materials,2018,188:520-536.
[8] WANG J B,LIU D T,SONG Z P.Damage layer thickness and formation mechanism of shotcrete with and without steel fiber under sulfate corrosion of dry-wet cycles by ultrasound plane testing method[J].Construction and Building Materials,2016,123:346-356.
[9] 薛永宏,曾鲁平.隧道单层衬砌技术及应用研究现状[J].建材发展导向,2019,17(24):8-10.
[10] JOVICIC V,?譒U?譒TER?譒IC J,VUKELIC Z.The application of fibre reinforced shotcrete as primary support for a tunnel in flysch[J].Tunnelling and Underground Space Technology,2009,24(6):723-730.
[11] PRUDENCIO L R.Accelerating admixtures for shotcrete[J].Cement and Concrete Composites,1998,20(2-3):213-219.
[12] 赵海涛,相宇,刘加平,等.钙镁膨胀剂和温升抑制剂对水泥浆体早龄期水化特性影响[J].硅酸盐学报,2021,49(11):2509-2517.
[13] LI G X,ZHANG J B,NIU M D,et al.The mechanism of alkali-free liquid accelerator on the hydration of cement pastes[J].Construction and Building Materials,2020,233:117296.
[14] 曾鲁平,乔敏,王伟,等.无碱速凝剂对硅酸盐水泥早期水化的影响[J].建筑材料学报,2021,24(1):31-38,44.

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不同掺合料对喷射钢纤维混凝土性能的影响

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