摘要
为研究玄武岩纤维、聚酯纤维、聚丙烯纤维、玻璃纤维对微表处混合料性能的提升效果,采用1 h湿轮磨耗试验、6 d湿轮磨耗试验、车辙试验、低温弯曲试验,研究不同纤维对普通微表处综合性能的提升程度。结果表明:微表处用纤维首选玄武岩纤维,相对未掺纤维其微表处抗水损害性能提升约7%,抗车辙性能提升约120%,低温抗裂性能提升约30%,其次为聚丙烯纤维,其微表处抵抗水损害性能提升约2%,抗车辙变形能力提升约107%,低温抗开裂性能提升约39%。以山西太佳西高速公路养护工程为依托,通过开展聚酯纤维、聚丙烯纤维、玄武岩纤维、玻璃纤维微表处在抗磨耗、抗水损、抗车辙、抗低温开裂方面的对比研究,提出加入各种纤维相对未掺纤维表处性能方面的提升幅度及排序,最后得出最优选择。
In order to study the improvement effect of basalt fiber,polyester fiber,polypropylene fiber and glass fiber on the performance of micro surfacing mixture,1 h wet wheel wear test,6 d wet wheel wear test,rutting test and low temperature bending test were used to study the improvement degree of different fibers on the comprehensive performance of ordinary micro surfacing mixture.The results show that basalt fiber is the first choice for micro surfacing fiber.Compared with non doped fiber,the water damage resistance of micro surfacing is improved by about 7%,the rutting resistance is improved by about 120%,the low temperature crack resistance is improved by about 30%,followed by polypropylene fiber.The water damage resistance of micro surfacing is improved by about 2%,the rutting deformation resistance is improved by about 107%,and the low temperature crack resistance is improved by about 39%.Relying on the maintenance project of Shanxi Taijiaxi Expressway,through the comparative study on the abrasion resistance,water loss resistance,rutting resistance,and low-temperature cracking resistance of polyester fiber,polypropylene fiber,basalt fiber,and glass fiber micro surfacing,the paper proposes the improvement range and sequence of the performance of the surface treated with various fibers relative to that of the non doped fiber,and finally obtains the optimal choice.
作者
沈云芳
SHEN Yun-fang(Shanxi Province Changzi Highway Management Section,Changzi,Shanxi 048000,China)
出处
《黑龙江交通科技》
2023年第11期63-67,共5页
Communications Science and Technology Heilongjiang
关键词
预防性养护
纤维微表处
玄武岩纤维
聚丙烯纤维
preventive maintenance
fiber micro surfacing
basalt fiber
polypropylene fiber
