合肥工业大学学报(自然科学版)
閤肥工業大學學報(自然科學版)
합비공업대학학보(자연과학판)
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2015年
4期
534-537
,共4页
硅灰%老化动力学%改性沥青%软化点
硅灰%老化動力學%改性瀝青%軟化點
규회%노화동역학%개성력청%연화점
silica fume%aging kinetics%modified asphalt%softening point
文章通过旋转薄膜老化试验,研究了基质沥青和硅灰改性沥青在不同老化温度和老化时间下软化点的变化规律,并以软化点为参数建立了硅灰改性沥青的老化动力学模型。结果表明:与基质沥青相比,硅灰改性沥青的软化点随着老化温度和老化时间变化的变化率更低;以软化点为参数建立的老化动力学方程能较好地表征硅灰改性沥青的老化过程。
文章通過鏇轉薄膜老化試驗,研究瞭基質瀝青和硅灰改性瀝青在不同老化溫度和老化時間下軟化點的變化規律,併以軟化點為參數建立瞭硅灰改性瀝青的老化動力學模型。結果錶明:與基質瀝青相比,硅灰改性瀝青的軟化點隨著老化溫度和老化時間變化的變化率更低;以軟化點為參數建立的老化動力學方程能較好地錶徵硅灰改性瀝青的老化過程。
문장통과선전박막노화시험,연구료기질력청화규회개성력청재불동노화온도화노화시간하연화점적변화규률,병이연화점위삼수건립료규회개성력청적노화동역학모형。결과표명:여기질력청상비,규회개성력청적연화점수착노화온도화노화시간변화적변화솔경저;이연화점위삼수건립적노화동역학방정능교호지표정규회개성력청적노화과정。
The change law of softening point of base asphalt and silica fume modified asphalt at differ‐ent temperatures and time was characterized by rolling thin film oven test ,and an aging kinetic model based on softening point data was set up .The results show that the change rate of softening point of silica fume modified asphalt at different temperatures and time is lower than that of base asphalt .The aging kinetic model based on the parameter of softening point can express the aging process of silica fume modified asphalt .