钢纤维掺量及长径比对无筋管片混凝土力学性能的影响

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发布时间：2020-01-06 00:00:00

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钢纤维掺量及长径比对无筋管片混凝土力学性能的影响

Influence of Addition and Aspect Ratio of Steel Fiber on the Mechanical Property of Concrete for Segments Without Steel Bars

2023年第3期

混凝土管片；钢纤维；掺量；长径比；抗压强度；抗弯强度

Concrete segment; Steel fiber; Content; Aspect ratio; Compressive strength; Flexural strength

2023年第3期

10.19761/j.1000-4637.2023.03.043.03

罗启正

重庆单轨交通工程有限责任公司，重庆 400084

罗启正

罗启正.钢纤维掺量及长径比对无筋管片混凝土力学性能的影响[J].混凝土与水泥制品,2023(3):43-44,50.

LUO Q Z.Influence of Addition and Aspect Ratio of Steel Fiber on the Mechanical Property of Concrete for Segments Without Steel Bars[J].China Concrete and Cement Products,2023(3):43-44,50.

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摘要：为提高钢纤维无筋盾构混凝土管片的力学性能，研究了钢纤维掺量（30 kg/m3、40 kg/m3、50 kg/m3）和长径比（0.8、0.7、0.6）对管片混凝土抗压强度、抗弯强度的影响。结果表明：在本文研究掺量范围内，管片混凝土抗压强度、抗弯强度均随钢纤维掺量的增加而提高；无筋盾构管片用C50混凝土的钢纤维推荐掺量为30~40 kg/m3，推荐长径比为0.8。 Abstract: In order to improve the mechanical properties of steel fiber reinforced concrete shield segments without steel bars, the effects of steel fiber content (30 kg/m3, 40 kg/m3, 50 kg/m3) and aspect ratio(0.8, 0.7, 0.6) on the compressive strength and flexural strength of segment concrete were studied. The results show that the compressive strength and flexural strength of the segment concrete increase with the increase of the steel fiber content within a certain range. The optimal content of steel fiber is recommended to be 30~40 kg/m3, and the aspect ratio of steel fiber is recommended to be 0.8.

英文名 : Influence of Addition and Aspect Ratio of Steel Fiber on the Mechanical Property of Concrete for Segments Without Steel Bars

刊期 : 2023年第3期

关键词 : 混凝土管片；钢纤维；掺量；长径比；抗压强度；抗弯强度

Key words : Concrete segment; Steel fiber; Content; Aspect ratio; Compressive strength; Flexural strength

刊期 : 2023年第3期

DOI : 10.19761/j.1000-4637.2023.03.043.03

文章编号 :

基金项目 :

作者 : 罗启正

单位 : 重庆单轨交通工程有限责任公司，重庆 400084

罗启正

罗启正.钢纤维掺量及长径比对无筋管片混凝土力学性能的影响[J].混凝土与水泥制品,2023(3):43-44,50.

LUO Q Z.Influence of Addition and Aspect Ratio of Steel Fiber on the Mechanical Property of Concrete for Segments Without Steel Bars[J].China Concrete and Cement Products,2023(3):43-44,50.

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摘要

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结论

参考文献

引用本文

摘要：为提高钢纤维无筋盾构混凝土管片的力学性能，研究了钢纤维掺量（30 kg/m³、40 kg/m³、50 kg/m³）和长径比（0.8、0.7、0.6）对管片混凝土抗压强度、抗弯强度的影响。结果表明：在本文研究掺量范围内，管片混凝土抗压强度、抗弯强度均随钢纤维掺量的增加而提高；无筋盾构管片用C50混凝土的钢纤维推荐掺量为30~40 kg/m³，推荐长径比为0.8。

Abstract: In order to improve the mechanical properties of steel fiber reinforced concrete shield segments without steel bars, the effects of steel fiber content (30 kg/m³, 40 kg/m³, 50 kg/m³) and aspect ratio(0.8, 0.7, 0.6) on the compressive strength and flexural strength of segment concrete were studied. The results show that the compressive strength and flexural strength of the segment concrete increase with the increase of the steel fiber content within a certain range. The optimal content of steel fiber is recommended to be 30~40 kg/m³, and the aspect ratio of steel fiber is recommended to be 0.8.

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钢纤维掺量及长径比对无筋管片混凝土力学性能的影响

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