国产天然沥青改性剂的开发

Development of Home?made Natural Asphalt Modifier

天然沥青的分子量大 ,氮含量高 ,性质稳定 ,用天然沥青改性后的道路沥青具有良好的高温稳定性及低温抗裂性能 ,抗车辙能力大大加强 ,且具有很强的抗剥落性能。我国天然沥青资源丰富 ,开发的WL系列添加剂和国外产品相当或略好。

Nature asphalt has significant characters?high molecular weight, high N content and high stability. It is good modifier for road asphalt to promote anti track, anti?crack and etc.. China is abundant in nature asphalt. WL series nature asphalt additives have been developed and their performance satisfied.