CAJ | 학술논문

我国寒冷地区热拌沥青混合料的施工季节短，为了减少低温条件下压实成型对沥青路面使用性能的不利影响，开展掺加低温施工高性能添加剂的沥青混合料路用性能的研究工作。研究了掺加低温高性能添加剂的沥青混合料的压实成型工艺，通过室内车辙实验、水稳定性实验和力学性能实验分析其路用性能特点。结果表明，掺加 PRLT 添加剂的沥青混合料能够在相对较低的温度条件下成型，提高了沥青混合料的可压实性，可以延长热拌沥青混合料的施工季节，适用于寒冷地区的沥青路面建设；该添加剂显著提高沥青混合料高温抗车辙性能，并一定程度上改善低温抗裂性能、抗水损害性能和力学性能。
아국한랭지구열반력청혼합료적시공계절단，위료감소저온조건하압실성형대력청로면사용성능적불리영향，개전참가저온시공고성능첨가제적력청혼합료로용성능적연구공작。연구료참가저온고성능첨가제적력청혼합료적압실성형공예，통과실내차철실험、수은정성실험화역학성능실험분석기로용성능특점。결과표명，참가 PRLT 첨가제적력청혼합료능구재상대교저적온도조건하성형，제고료력청혼합료적가압실성，가이연장열반력청혼합료적시공계절，괄용우한랭지구적력청로면건설；해첨가제현저제고력청혼합료고온항차철성능，병일정정도상개선저온항렬성능、항수손해성능화역학성능。
There was only about five months for constructing of hot mixture of asphalt in cold regions.Some distresses occur on asphalt pavement which was compacted in very low temperature.In this paper,the perform-ance of a rut-resistance asphalt mixture compacted in low temperature was analyzed.The asphalt mixture with PRLT additive can be molded in 130 ℃.The high temperature rut test,moisture resistance test and low tem-perature blending test of asphalt mixture were conducted in laboratory.Test results showed that asphalt mix-ture with PRLT additive can be compacted in a relatively low temperature.The PRLT additive improves the compactibility of asphalt mixture in cold environment.The construction season is extended for hot asphalt mix-ture with PRLT additive in cold regions.The PRLT additive improves obviously the high temperature stability of asphalt mixture.At the same time,the low temperature performance,mechanical property and moisture re-sistance performance are improved to a certain extent.