INFLUENCES OF POLYMER MODIFIED BITUMEN AND COARSE AGGREGATE ON FLOW DEFORMATION OF POROUS ASPHALT MIXTURE

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  • MURAYAMA Masato
    社団法人 土木学会 中央大学 大学院理工学研究科
  • HIMENO Kenji
    社団法人 土木学会 中央大学 理工学部土木工学科

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  • ポーラスアスファルト混合物の流動変形に及ぼす改質アスファルトと粗骨材の影響
  • ポーラスアスファルト コンゴウブツ ノ リュウドウ ヘンケイ ニ オヨボス カイシツ アスファルト ト ソコツザイ ノ エイキョウ

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Abstract

It is indispensable to know the establishment of material property evaluation method and the material influence proportion in order to understand the flow deformation resistance of the asphalt mixture. In this study, focusing on the viscoelasticity of the polymer modified bitumen and geometrical properties of coarse aggregates, their measuring and evaluation methods were examined. The examination of relation between the obtained material property values and porous mixture properties revealed that mortar consisting of asphalt and aggregate granules is highly correlated with the dynamic stability of mixture and that the flow deformation of mixture is more influenced by the microtexture of coarse aggregate surface rather than large geometrical properties such as coarse aggregate flatness.

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