钢-PVA混杂纤维UHPC的弯曲性能试验研究_《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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钢-PVA混杂纤维UHPC的弯曲性能试验研究

Experimental study on bending performance of steel-PVA hybrid fiber reinforced UHPC

2023年第8期

超高性能混凝土（UHPC）；数字图像相关（DIC）技术；PVA纤维；钢纤维；抗弯强度；裂缝发展

Ultra-High Performance Concrete(UHPC); Digital Image Correlation(DIC) method; PVA fiber; Steel fiber; Bending strength; Crack development

2023年第8期

10.19761/j.1000-4637.2023.08.054.06

山东省交通运输厅科技计划项目（2020B47）。

韩乐冰1，2，齐晓琳3，袁化强4，李永浩4，徐兴伟1，2，李文1，2，牛腾1，2

1.山东高速工程检测有限公司，山东济南 250000；2.桥梁结构大数据与性能诊治提升重点实验室，山东济南 250000；3.淄博市交通运输局，山东淄博 255020；4.山东大学齐鲁交通学院，山东济南 250002

韩乐冰1，2，齐晓琳3，袁化强4，李永浩4，徐兴伟1，2，李文1，2，牛腾1，2

韩乐冰,齐晓琳,袁化强,等.钢-PVA混杂纤维UHPC的弯曲性能试验研究[J].混凝土与水泥制品,2023(8):54-59.

HAN L B,QI X L,YUAN H Q,et al.Experimental study on bending performance of steel-PVA hybrid fiber reinforced UHPC[J].China Concrete and Cement Products,2023(8):54-59.

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摘要：通过四点弯曲试验研究了钢纤维和PVA纤维混掺比例对超高性能混凝土（UHPC）弯曲性能的影响，利用数字图像相关（DIC）技术分析了UHPC的裂缝发展规律。结果表明：在混杂纤维总掺量（2.0%）不变的情况下，随着PVA纤维掺量的增加，UHPC的抗弯强度下降，峰值挠度基本先增大后减小，裂缝数量先增大后减小，裂缝分布均匀性先提升后降低；总体上，混杂纤维UHPC的弯曲性能比单掺钢纤维UHPC的弯曲性能好，钢纤维和PVA纤维混掺时的最佳掺量分别为1.6%和0.4%，此时，UHPC的抗弯强度降幅仅为1.99%，但峰值挠度、裂缝数量显著提高，裂缝分布均匀性明显提升。 Abstract: The influence of the mixing ratio of steel fiber and PVA fiber on the bending performance of Ultra-High Performance Concrete(UHPC) was studied through the four point bending test, and the crack development pattern of UHPC was analyzed by using Digital Image Correlation(DIC) method. The results show that, when the total content of hybrid fibers(2.0%) remains unchanged, with the increase of PVA fiber content, the bending strength of UHPC decreases, the peak deflection basically increases and then decreases, the number of cracks first increases and then decreases, and the uniformity of crack distribution first improves and then decreases. Overall, the bending performance of hybrid fiber reinforced UHPC is better than that of UHPC with steel fiber, and the optimal mixing ratio of steel fiber and PVA fiber is 1.6% and 0.4%. At this time, the bending strength of UHPC decreases by only 1.99%, but the peak deflection and number of cracks significantly increase, and the uniformity of crack distribution significantly improves.

英文名 : Experimental study on bending performance of steel-PVA hybrid fiber reinforced UHPC

刊期 : 2023年第8期

关键词 : 超高性能混凝土（UHPC）；数字图像相关（DIC）技术；PVA纤维；钢纤维；抗弯强度；裂缝发展

Key words : Ultra-High Performance Concrete(UHPC); Digital Image Correlation(DIC) method; PVA fiber; Steel fiber; Bending strength; Crack development

刊期 : 2023年第8期

DOI : 10.19761/j.1000-4637.2023.08.054.06

文章编号 :

基金项目 : 山东省交通运输厅科技计划项目（2020B47）。

作者 : 韩乐冰1，2，齐晓琳3，袁化强4，李永浩4，徐兴伟1，2，李文1，2，牛腾1，2

单位 : 1.山东高速工程检测有限公司，山东济南 250000；2.桥梁结构大数据与性能诊治提升重点实验室，山东济南 250000；3.淄博市交通运输局，山东淄博 255020；4.山东大学齐鲁交通学院，山东济南 250002

韩乐冰1，2，齐晓琳3，袁化强4，李永浩4，徐兴伟1，2，李文1，2，牛腾1，2

韩乐冰,齐晓琳,袁化强,等.钢-PVA混杂纤维UHPC的弯曲性能试验研究[J].混凝土与水泥制品,2023(8):54-59.

HAN L B,QI X L,YUAN H Q,et al.Experimental study on bending performance of steel-PVA hybrid fiber reinforced UHPC[J].China Concrete and Cement Products,2023(8):54-59.

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摘要

参数

结论

参考文献

引用本文

Abstract: The influence of the mixing ratio of steel fiber and PVA fiber on the bending performance of Ultra-High Performance Concrete(UHPC) was studied through the four point bending test, and the crack development pattern of UHPC was analyzed by using Digital Image Correlation(DIC) method. The results show that, when the total content of hybrid fibers(2.0%) remains unchanged, with the increase of PVA fiber content, the bending strength of UHPC decreases, the peak deflection basically increases and then decreases, the number of cracks first increases and then decreases, and the uniformity of crack distribution first improves and then decreases. Overall, the bending performance of hybrid fiber reinforced UHPC is better than that of UHPC with steel fiber, and the optimal mixing ratio of steel fiber and PVA fiber is 1.6% and 0.4%. At this time, the bending strength of UHPC decreases by only 1.99%, but the peak deflection and number of cracks significantly increase, and the uniformity of crack distribution significantly improves.

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[1] 王晖.超高性能混凝土(UHPC)研究综述[J].混凝土与水泥制品,2022(4):25-28.
[2] 吕帅灵,商涛平,王洪新,等.现役钢-UHPC桥面铺装修复技术研究[J].混凝土与水泥制品,2021(7):88-92.
[3] 杨成军,李锡松,尹武晓,等.超高性能混凝土在建筑领域的应用研究[J].混凝土与水泥制品,2022(8):37-40,49.
[4] 蔺鑫磊,兰胜强,岳秀鹏,等.无粗骨料UHPC预制桥面板高温蒸养施工技术[J].公路,2022,67(7):202-208.
[5] 张云升,张文华,陈振宇.综论超高性能混凝土:设计制备·微观结构·力学与耐久性·工程应用[J].材料导报,2017,31(23):1-16.
[6] 张阳,黄松龄,刘颖峰,等.预应力UHPC加固RC梁抗弯性能试验研究[J].湖南大学学报(自然科学版),2022,49(3):23-31.
[7] MOSAVINEJAD S H G,LANGAROUDI M A M,BARANDOUST J,et al.Electrical and microstructural analysis of UHPC containing short PVA fibers[J].Construction and Building Materials,2020,235:117448.
[8] MENG W N,KHAYAT K H.Effect of hybrid fibers on fresh properties, mechanical properties, and autogenous shrinkage of cost-effective UHPC[J].Journal of Materials in Civil Engineering,2018,30(4):04018030.
[9] 梁睿,李传习,聂洁,等.混杂纤维超高性能混凝土断裂性能研究[J].交通科学与工程,2022,38(1):43-54.
[10] 邓宗才.混杂纤维增强超高性能混凝土弯曲韧性与评价方法[J].复合材料学报,2016,33(6):1274-1280.
[11] DEHGHANPOUR H,SUBASI S,GUNTEPE S,et al.Investigation of fracture mechanics, physical and dynamic properties of UHPCs containing PVA, glass and steel fibers[J].Construction and Building Materials,2022,328:127079.
[12] 王经纬,欧忠文,刘晋铭,等.PVA纤维改性混凝土的研究应用进展[J].粉煤灰综合利用,2018(4):97-103.
[13] 韩乐冰.ECC及其组合板弯曲疲劳性能研究[D].济南:山东大学,2021.
[14] SUN R J,HAN L B,ZHANG H Z,et al.Fatigue life and cracking characterization of engineered cementitious composites (ECC) under flexural cyclic load[J].Construction and Building Materials,2022,335:127465.

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