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A platform for research: civil engineering, architecture and urbanism
ADDITIVE FOR RECLAIMED ASPHALT, RECLAIMED ASPHALT PAVING MATERIAL, AND MANUFACTURING METHOD OF ADDITIVE FOR RECLAIMED ASPHALT
PROBLEM TO BE SOLVED: To provide an additive for reclaimed asphalt having only a slight environmental burden, high flash point, and high regeneration effect for deteriorated asphalt and deteriorated modified asphalt already subjected to regeneration treatment; a reclaimed asphalt paving material obtained by mixing with the additive for reclaimed asphalt; and a method for manufacturing the additive for reclaimed asphalt.SOLUTION: There is provided an additive for reclaimed asphalt which satisfies the following requirements (1) to (4): - Requirement (1): The content of the polycyclic aromatic hydrocarbon (PCA) is 3 mass% or less; - Requirement (2): The kinematic viscosity at 40°C is 250 to 2500 mm/s; - Requirement (3): The flash point is 250°C or higher; - Requirement (4): The kinematic viscosity at 160°C of a distillate from the initial distillation point to a distillation of 20 vol.% for when the additive for reclaimed asphalt is distilled under reduced pressure is less than 3.50 mm/s.SELECTED DRAWING: None
【課題】環境への負荷が少なく、高引火点であり、既に再生処理が施された劣化アスファルトや劣化改質アスファルトの再生効果が高い、再生アスファルト用添加剤、及び、当該再生アスファルト用添加剤を配合してなる再生アスファルト舗装材、並びに、再生アスファルト用添加剤の製造方法を提供する。【解決手段】下記要件（１）〜（４）を満たす、再生アスファルト用添加剤。・要件（１）：多環芳香族炭化水素（ＰＣＡ）の含有量が３質量％以下である。・要件（２）：４０℃における動粘度が２５０〜２５００ｍｍ２／ｓである。・要件（３）：引火点が２５０℃以上である。・要件（４）：前記再生アスファルト用添加剤を減圧蒸留した際の、初留点から留出量２０体積％までの留出物の１６０℃における動粘度が３．５０ｍｍ２／ｓ未満である。【選択図】なし
ADDITIVE FOR RECLAIMED ASPHALT, RECLAIMED ASPHALT PAVING MATERIAL, AND MANUFACTURING METHOD OF ADDITIVE FOR RECLAIMED ASPHALT
PROBLEM TO BE SOLVED: To provide an additive for reclaimed asphalt having only a slight environmental burden, high flash point, and high regeneration effect for deteriorated asphalt and deteriorated modified asphalt already subjected to regeneration treatment; a reclaimed asphalt paving material obtained by mixing with the additive for reclaimed asphalt; and a method for manufacturing the additive for reclaimed asphalt.SOLUTION: There is provided an additive for reclaimed asphalt which satisfies the following requirements (1) to (4): - Requirement (1): The content of the polycyclic aromatic hydrocarbon (PCA) is 3 mass% or less; - Requirement (2): The kinematic viscosity at 40°C is 250 to 2500 mm/s; - Requirement (3): The flash point is 250°C or higher; - Requirement (4): The kinematic viscosity at 160°C of a distillate from the initial distillation point to a distillation of 20 vol.% for when the additive for reclaimed asphalt is distilled under reduced pressure is less than 3.50 mm/s.SELECTED DRAWING: None
【課題】環境への負荷が少なく、高引火点であり、既に再生処理が施された劣化アスファルトや劣化改質アスファルトの再生効果が高い、再生アスファルト用添加剤、及び、当該再生アスファルト用添加剤を配合してなる再生アスファルト舗装材、並びに、再生アスファルト用添加剤の製造方法を提供する。【解決手段】下記要件（１）〜（４）を満たす、再生アスファルト用添加剤。・要件（１）：多環芳香族炭化水素（ＰＣＡ）の含有量が３質量％以下である。・要件（２）：４０℃における動粘度が２５０〜２５００ｍｍ２／ｓである。・要件（３）：引火点が２５０℃以上である。・要件（４）：前記再生アスファルト用添加剤を減圧蒸留した際の、初留点から留出量２０体積％までの留出物の１６０℃における動粘度が３．５０ｍｍ２／ｓ未満である。【選択図】なし
ADDITIVE FOR RECLAIMED ASPHALT, RECLAIMED ASPHALT PAVING MATERIAL, AND MANUFACTURING METHOD OF ADDITIVE FOR RECLAIMED ASPHALT
再生アスファルト用添加剤、再生アスファルト舗装材、及び再生アスファルト用添加剤の製造方法
KUNIGAMI MASATAKA (author) / GOTO KENJI (author)
2018-11-08
Patent
Electronic Resource
Japanese
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