為了改進和最佳化瀝青的低溫性能評價指標，採用灰色關聯理論計算分析了改性瀝青和不同老化程度瀝青的延度、針入度等常見指標與美國SHRP計畫的梁彎曲蠕變試驗指標的關聯度。
基本介紹
- 中文名：瀝青低溫性能評價指標的灰色關聯度分析
- 外文名：無
- 詞性：名詞
- 範疇：化學
基本信息,關鍵字,關鍵字英文摘要,
基本信息
結果表明，瀝青的韌性比和15℃針入度與梁彎曲蠕變試驗指標具有較高的關聯度，能反映改性瀝青和老化瀝青的低溫性能。研究結果可供低溫地區選擇瀝青結合料時參考。
關鍵字
道路工程；灰色關聯；瀝青混合料；低溫抗裂性；
關鍵字英文摘要
Grey Relation Analysis of Low-temperature Performance Indexs of Asphalt Binder
Huang Bing Yan Kezhen Lin Feng
College of Civil Engineering, Hunan University, Changsha Hunan 410082
Abstract: The evaluation methods of anti-cracking performance of asphalt at low temperature are not unified. In order to reduce the pavement cracking, it is very important to find out the uniform evaluation index. This paper adopts the theory of grey relation degree to evaluate the low-temperature performance index of asphalt binder. The results show that it is feasible to take the toughness ratio or asphalt penetration index as the main index to evaluate low—temperature performance of asphalt binder. The results are important to reduce shrink cracking of asphalt pavement.
Key words: highway engineering; grey relation analysis; asphalt mixture; low-temperature anti-cracking performance
