摘要
冻裂是多年冻土地区沥青路面的主要病害。本文介绍青藏公路第三期改建工程采用的橡胶改性沥青混合料的设计方案，经过室内试验研究和实际应用，证明这种沥青混合料具有良好的低温抗裂性、耐久性和便于施工等特点，从而为多年冻土地区修筑高等级沥青路面提供了依据。
Frost crack is the main failuve of asphalt pavement in permafrost region.The paper introduces the design scheme of SBR modified asphaltmixture that is adopted for the three phase of the Qinghai-Xizang highway reconstruction project,through the trial research in the laboratory and applicationin practice,it is testified that the kind of asphalt mixture possesses the better anticrack performance at low temperature.durability and convenient constructionand so on,and it can provide basis for building high grade highway asphalt pavement in permafrost region.
出处
《石油沥青》
1995年第3期35-39,共5页
Petroleum Asphalt
关键词
低温抗裂
沥青混合料
沥青路面
Permafrost region Anticrack design about asphalt mixture atlow temperature Prediction crack temperature
