[1]王朝辉,王若飞,李彦伟,等.PVA纤维改性树脂基微表处制备及性能[J].长安大学学报(自然科学版),2024,44(04):1-14.[doi:10.19721/j.cnki.1671-8879.2024.04.001]
　WANG Chao-hui,WANG Ruo-fei,LI Yan-wei,et al.Preparation and properties of PVA fiber modified resin-based micro-surfacing[J].Journal of Chang’an University (Natural Science Edition),2024,44(04):1-14.[doi:10.19721/j.cnki.1671-8879.2024.04.001]
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PVA纤维改性树脂基微表处制备及性能()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第44卷
期数:
2024年04期
页码:
1-14
栏目:
道路工程
出版日期:
2024-07-10

文章信息/Info

Title:
Preparation and properties of PVA fiber modified resin-based micro-surfacing
文章编号:
1671-8879(2024)04-0001-14
作者:
王朝辉1; 王若飞1; 李彦伟2; 王志斌2; 冯雷2; 张丹2
(1.长安大学 公路学院,陕西 西安 710064; 2. 太行城乡建设集团有限公司,河北 石家庄 050200)
Author(s):
WANG Chao-hui1;  WANG Ruo-fei1;  LI Yan-wei2;  WANG Zhi-bin2;  FENG Lei2;  ZHANG Dan2
(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Taihang Urban and Rural Construction Group Co., Ltd, Shijiazhuang 050200, Hebei, China)
关键词:
道路工程;  微表处;  PVA纤维;  水性树脂;  制备;  路用性能
Keywords:
road engineering;  micro-surfacing;  PVA fiber;  waterborne resin;  preparation;  pavement performance
分类号:
U416
DOI:
10.19721/j.cnki.1671-8879.2024.04.001
文献标志码:
A
摘要:
为进一步提升微表处的韧性及各项路用性能,制备了聚乙烯醇(PVA)纤维改性树脂基微表处(WEA-Ⅰ型和WEA-Ⅱ型),基于PVA纤维改性前、后的性能及不同添加方式下PVA纤维在微表处混合料中的分散状态,明确了PVA纤维表面改性与分散添加方式,优化了PVA纤维改性树脂基微表处组成配比; 采用黏聚力、抗滑摆值、构造深度、抗渗水、湿轮磨耗、轮辙变形和板带拉伸试验,探明了不同纤维掺量下2种PVA纤维改性树脂基微表处成型状态、抗滑、耐磨耗、抗水损、抗车辙等路用性能和拉伸韧性,确定了最佳纤维掺量; 对比评价了PVA纤维改性树脂基微表处与现有其他微表处的路用性能。结果表明:基于氨基硅油改性的表面处理效果最佳,采用纤维与集料预拌和至分散、加水搅拌、再分2次加入乳化沥青拌和的添加方式,可使PVA纤维在微表处混合料中分布最为均匀; 随着PVA纤维掺量的增加,2种微表处耐磨耗性能、抗水损性能、抗车辙性能和拉伸韧性均呈现先增后降的变化趋势; 与未掺加PVA纤维相比,PVA纤维改性树脂基微表处耐磨耗性能提升幅度达75%,抗车辙性能与拉伸韧性分别提升了36%～61%和80%～120%; 2种PVA纤维改性树脂基微表处均具备优异的防水抗渗性能和抗滑性能。综合考虑微表处的性能变化,推荐PVA纤维最佳掺量(质量分数,下同)为微表处混合料重量的0.1%。
Abstract:
To further improve the toughness and road performance of micro-surface layers, polyvinyl alcohol(PVA)fiber-modified resin-based micro-surface layers(WEA-Ⅰ and WEA-Ⅱ)were prepared. The performance before and after PVA fiber modification, as well as the dispersion status of PVA fibers in micro-surface layer mixtures under different addition methods, were investigated. The surface modification of PVA fibers and the addition methods for dispersing fibers were explicitly defined, and the composition ratio of PVA fiber-modified resin-based micro-surface layers was optimized. Cohesion, BPN, texture depth, water resistance, wet wheel abrasion, rutting deformation, and strip tensile tests were conducted to explore the molding state, skid resistance, abrasion resistance, water damage resistance, rutting resistance, and tensile toughness of the two types of PVA fiber-modified resin-based micro-surface layers at different fiber contents. The optimal fiber content was determined, and a comparative evaluation of the road performance of PVA fiber-modified resin-based micro-surface layers and other existing micro-surface layers was conducted. The results show that the surface treatment of PVA fibers with amino silicone oil yields the best modification effect. Using the fiber pre-blending method with aggregates until dispersion, adding water for stirring, and then adding emulsified asphalt in two stages achieves the most uniform distribution of PVA fibers in the micro-surface layer mixture without agglomeration. With the increase of PVA fiber content, the abrasion resistance, water damage resistance, rutting resistance, and tensile toughness of both micro-surface layers initially increase and then decrease. Compared to micro-surface layers without PVA fibers, the improvement in abrasion resistance of PVA fiber-modified resin-based micro-surface layers reaches 75%, while rutting resistance and tensile toughness increase by 36% to 61% and 80% to 120%, respectively. Both types of PVA fiber-modified resin-based micro-surface layers demonstrate excellent waterproof and skid resistance. Considering the overall performance changes of micro-surface layers, the recommended optimal content(mass fraction, the same below)of PVA fibers is 0.1% of the weight of the micro-surface layer mixture.7 tabs, 18 figs, 35 refs.

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备注/Memo

备注/Memo:
收稿日期:2024-01-08
基金项目:国家自然科学基金项目(52378429); 陕西省创新能力支撑计划项目(2022TD-07); 太行城乡建设集团有限公司科技项目(KT-2)
作者简介:王朝辉(1980-),男,河南滑县人,教授,博士研究生导师,E-mail:wchh0205@163.com。
更新日期/Last Update: 2024-07-10