基于反射裂缝防治的玄武岩经编纤维布阻裂性能研究

硅酸盐通报 ›› 2021, Vol. 40 ›› Issue (12): 4151-4157.

基于反射裂缝防治的玄武岩经编纤维布阻裂性能研究

申爱琴¹, 龙虹均¹, 郭寅川¹, 李鹏¹, 翟超伟²

1.长安大学公路学院,西安 710064;
2.河南省交通规划设计研究院股份有限公司,郑州 451464

出版日期:2021-12-15 发布日期:2022-01-07
通讯作者: 龙虹均,硕士研究生。E-mail:1127410210@qq.com
作者简介:申爱琴(1957—),女,博士,教授。主要从事道路工程材料方面的研究。E-mail:672121381@qq.com
基金资助:
国家自然科学基金面上项目(52078050)

Anti-Cracking Performance of Basalt Warp Knitted Fiber Cloth Based on Reflection Crack Prevention

SHEN Aiqin¹, LONG Hongjun¹, GUO Yinchuan¹, LI Peng¹, ZHAI Chaowei²

1. School of Highway, Chang'an University, Xi'an 710064, China;
2. Henan Provincial Communications Planning ＆ Design Institute Co. , Ltd. , Zhengzhou 451464, China

Online:2021-12-15 Published:2022-01-07

摘要/Abstract

摘要： 针对沥青路面面层出现的轻度反射裂缝问题,为增强防治措施,本文对玄武岩经编纤维布阻裂性能进行了试验研究。通过冲击韧性试验与动态疲劳试验研究了玄武岩经编纤维布和对照土工合成材料(玻纤格栅、聚酯玻纤布)的防反性能,最后对沥青混合料加铺不同土工合成材料后的抗冲击性能与抗疲劳性能进行了相关性分析。研究结果表明:加铺玄武岩经编纤维布,沥青混合料的冲击韧性可提升70%以上;玄武岩经编纤维布在防治裂缝产生与延缓裂缝扩展方面均表现出了优于玻纤格栅和聚酯玻纤布的能力,在沥青混合料中铺设玄武岩经编纤维布可获得最好的疲劳抗裂性能。铺设土工合成材料后,混合料的冲击韧性与其疲劳寿命相关性较好,采用冲击韧性预估沥青混合料加铺土工合成材料后的抗疲劳性能具有可行性。

关键词: 玄武岩经编纤维布, 轻度反射裂缝, 沥青路面面层, 冲击韧性, 裂缝动态发展过程, 相关性

Abstract: Reflective crack is the main reason for reducing the service life of semi-rigid base asphalt pavement, and laying geosynthetics is one of the effective ways to reduce reflective crack. To take optimum measures of reflective resistance, aimed at the problem of slight reflection crack in asphalt pavement surface, the anti-cracking performance of basalt warp knitted fiber cloth was studied. Through impact ductility test and dynamic fatigue test, the reflective resistance performances of basalt warp knitted fiber cloth and control geosynthetics (fiberglass grating and fiberglass-polyester paving mat) were analyzed. Finally, the correlation between impact ductility and fatigue properties of asphalt mixture after paving different geosynthetics was analyzed. The results show that the impact ductility of asphalt mixture is improved by more than 70% when basalt warp knitted fiber cloth is overlaying. Basalt warp knitted fiber cloth is superior to fiberglass grating and fiberglass-polyester paving mat in preventing crack generation and delaying crack propagation, and laying basalt warp knitted fiber cloth in asphalt mixture obtains the best fatigue properties. After paving geosynthetics, the impact ductility of asphalt mixture has a good correlation with its fatigue life, and it is feasible to use impact ductility to predict the fatigue properties of asphalt mixture after paving geosynthetics.

Key words: basalt warp knitted fiber cloth, slight reflection crack, asphalt pavement surface, impact ductility, crack dynamic development process, correlation

中图分类号:

U414

申爱琴, 龙虹均, 郭寅川, 李鹏, 翟超伟. 基于反射裂缝防治的玄武岩经编纤维布阻裂性能研究[J]. 硅酸盐通报, 2021, 40(12): 4151-4157.

SHEN Aiqin, LONG Hongjun, GUO Yinchuan, LI Peng, ZHAI Chaowei. Anti-Cracking Performance of Basalt Warp Knitted Fiber Cloth Based on Reflection Crack Prevention[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 4151-4157.

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