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 an asphalt composition comprising an improved rejuvenating agent for reclaimed asphalt, which is derived from renewable resources, has improved miscibility with an aged binder to reduce its tendency to migrate from the binder, has improved temperature sensitivity, and can restore original performance grading of the binder.SOLUTION: A reclaimed asphalt comprises aggregate and an aged binder. A rejuvenating agent, which has a cyclic content of at least 5 wt.%, comprises an ester or ester blend derived from an acid selected from the group consisting of aromatic acids, fatty acids, fatty acid monomers, fatty acid dimers, fatty acid trimers, rosin acids, rosin acid dimers, and mixtures thereof. The rejuvenating agent revitalizes the aged bitumen binder of reclaimed asphalt and restores its physical properties to those of the original performance-grade bitumen.SELECTED DRAWING: None
【課題】再生可能な資源に由来し、結合剤から移動する傾向が低減するように老化結合剤との混和性が改善され、感温性が改善され、結合剤に元来の性能グレードを復活させることができる回収アスファルト用の改善された再生剤とを含むアスファルト組成物。【解決手段】回収アスファルトは、骨材と老化結合剤とを含む。少なくとも５重量％の環式含量を有する再生剤は、芳香族酸、脂肪酸、脂肪酸モノマー、脂肪酸ダイマー、脂肪酸トリマー、ロジン酸、ロジン酸ダイマー、およびその混合物からなる群から選択される酸由来のエステルまたはエステルブレンドを含む。再生剤は、回収アスファルトの老化瀝青結合剤を再生し、その物理特性を元来の性能グレードの瀝青まで復活させる。【選択図】なし
REJUVENATION OF RECLAIMED ASPHALT
PROBLEM TO BE SOLVED: To provide an asphalt composition comprising an improved rejuvenating agent for reclaimed asphalt, which is derived from renewable resources, has improved miscibility with an aged binder to reduce its tendency to migrate from the binder, has improved temperature sensitivity, and can restore original performance grading of the binder.SOLUTION: A reclaimed asphalt comprises aggregate and an aged binder. A rejuvenating agent, which has a cyclic content of at least 5 wt.%, comprises an ester or ester blend derived from an acid selected from the group consisting of aromatic acids, fatty acids, fatty acid monomers, fatty acid dimers, fatty acid trimers, rosin acids, rosin acid dimers, and mixtures thereof. The rejuvenating agent revitalizes the aged bitumen binder of reclaimed asphalt and restores its physical properties to those of the original performance-grade bitumen.SELECTED DRAWING: None
【課題】再生可能な資源に由来し、結合剤から移動する傾向が低減するように老化結合剤との混和性が改善され、感温性が改善され、結合剤に元来の性能グレードを復活させることができる回収アスファルト用の改善された再生剤とを含むアスファルト組成物。【解決手段】回収アスファルトは、骨材と老化結合剤とを含む。少なくとも５重量％の環式含量を有する再生剤は、芳香族酸、脂肪酸、脂肪酸モノマー、脂肪酸ダイマー、脂肪酸トリマー、ロジン酸、ロジン酸ダイマー、およびその混合物からなる群から選択される酸由来のエステルまたはエステルブレンドを含む。再生剤は、回収アスファルトの老化瀝青結合剤を再生し、その物理特性を元来の性能グレードの瀝青まで復活させる。【選択図】なし
REJUVENATION OF RECLAIMED ASPHALT
回収アスファルトの再生
RACHEL SEVERANCE (author) / WILLIAM LEWIS GRADY (author) / DAVID JAN CORNELIS BROERE (author) / LAURENT POROT (author) / TRESHA OVERSTREET (author)
2018-02-22
Patent
Electronic Resource
Japanese