METHOD FOR PRODUCING ASPHALT FOR ROAD PAVING

To provide a method for producing asphalt for road paving in which, by electron beam irradiation to an asphalt composition in an open atmosphere, an asphalt for road paving having improved pavement durability and resistance to deformation can be produced.SOLUTION: Provided is a method for producing...

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Bibliographische Detailangaben
Hauptverfasser: HIRATO TOSHIAKI, MORIKAWA YU, HARADA KENTARO, MAGARI KEI, KAMIYA YUKIHIDE, YOSHITAKE MICHIO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a method for producing asphalt for road paving in which, by electron beam irradiation to an asphalt composition in an open atmosphere, an asphalt for road paving having improved pavement durability and resistance to deformation can be produced.SOLUTION: Provided is a method for producing asphalt for road paving, which is a method for producing asphalt for road paving that comprises a step (SA) of irradiating electron beam to an asphalt composition in an open atmosphere, and, in the step (SA), an asphalt composition (X) before being irradiated with electron beam is irradiated with the electron beam having an energy of 1 keV or more and 200 MeV or less and an irradiation dose of 100 kGy or more and 1 MGy or less.SELECTED DRAWING: Figure 1 【課題】大気開放下でのアスファルト組成物へ電子線照射で、舗装の耐久性が向上し、変形しにくい道路舗装用アスファルトを製造することができる、道路舗装用アスファルトの製造方法を提供する。【解決手段】アスファルト組成物に大気開放下で電子線を照射する工程(SA)を含む、道路舗装用アスファルトの製造方法であって、前記工程(SA)において、電子線を照射される前のアスファルト組成物(X)に、エネルギーが1keV以上200MeV以下、照射線量が100kGy以上1MGy以下の前記電子線を照射する、道路舗装用アスファルトの製造方法である。【選択図】図1