A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REJUVENATION OF RECLAIMED ASPHALT
PROBLEM TO BE SOLVED: To provide a rejuvenation method for reclaimed pavement asphalt that is difficult to treat and has characteristics different from virgin asphalt.SOLUTION: Asphalt compositions comprise reclaimed asphalt and an ester-functional rejuvenating agent. The rejuvenating agent is present in an amount effective to reduce the glass-transition onset temperature of an aged binder by at least 5°C compared with the glass-transition onset temperature of the aged binder without the rejuvenating agent. The asphalt composition comprises 1 to 99 wt.% of virgin aggregate based on the combined amounts of virgin asphalt and rejuvenating agent. Preferably, the asphalt composition comprises 0.1 to 15 wt.% of the rejuvenating agent based upon the combined amount of an oxidizing asphalt binder and the rejuvenating agent. The reclaiming agent is preferably derived from monool of C-, diol or triol and C-fatty acid, or its dimer acid.SELECTED DRAWING: None
【課題】未使用アスファルトと異なる特性を有し、加工が困難である回収舗装アスファルトの再生方法の提供。【解決手段】回収アスファルトと，エステル官能性再生剤とを含み，再生剤が，再生剤を含まない酸化結合型のガラス転移開始温度に比較して酸化結合型のガラス転移開始温度を少なくとも５℃低減するのに有効な量で存在するアスファルト組成物。未使用結合剤と酸化アスファルト結合剤とを合わせた量に対し、１〜９９重量％の未使結合剤を含み、酸化アスファルト結合剤及び再生剤を合わせた量に対し０．１〜１５重量％の再生剤を含むことが、好ましい、アスファルト組成物。前記再生剤が、好ましくは、Ｃ１〜１８のモノオール、ジオール或いはトリオール及びＣ８〜２０脂肪酸或いはそのダイマー酸に由来する、アスファルト組成物。【選択図】なし
REJUVENATION OF RECLAIMED ASPHALT
PROBLEM TO BE SOLVED: To provide a rejuvenation method for reclaimed pavement asphalt that is difficult to treat and has characteristics different from virgin asphalt.SOLUTION: Asphalt compositions comprise reclaimed asphalt and an ester-functional rejuvenating agent. The rejuvenating agent is present in an amount effective to reduce the glass-transition onset temperature of an aged binder by at least 5°C compared with the glass-transition onset temperature of the aged binder without the rejuvenating agent. The asphalt composition comprises 1 to 99 wt.% of virgin aggregate based on the combined amounts of virgin asphalt and rejuvenating agent. Preferably, the asphalt composition comprises 0.1 to 15 wt.% of the rejuvenating agent based upon the combined amount of an oxidizing asphalt binder and the rejuvenating agent. The reclaiming agent is preferably derived from monool of C-, diol or triol and C-fatty acid, or its dimer acid.SELECTED DRAWING: None
【課題】未使用アスファルトと異なる特性を有し、加工が困難である回収舗装アスファルトの再生方法の提供。【解決手段】回収アスファルトと，エステル官能性再生剤とを含み，再生剤が，再生剤を含まない酸化結合型のガラス転移開始温度に比較して酸化結合型のガラス転移開始温度を少なくとも５℃低減するのに有効な量で存在するアスファルト組成物。未使用結合剤と酸化アスファルト結合剤とを合わせた量に対し、１〜９９重量％の未使結合剤を含み、酸化アスファルト結合剤及び再生剤を合わせた量に対し０．１〜１５重量％の再生剤を含むことが、好ましい、アスファルト組成物。前記再生剤が、好ましくは、Ｃ１〜１８のモノオール、ジオール或いはトリオール及びＣ８〜２０脂肪酸或いはそのダイマー酸に由来する、アスファルト組成物。【選択図】なし
REJUVENATION OF RECLAIMED ASPHALT
回収アスファルトの再生
DAVID JAN CORNELIS BROERE (author) / WILLIAM LEWIS GRADY (author) / TRESHA OVERSTREET (author) / CHARLES DAVID MOSES (author) / RACHEL SEVERANCE (author) / LAURENT POROT (author)
2018-02-08
Patent
Electronic Resource
Japanese
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE