Combined modification of asphalt with organic attapulgite (OATT) and polyurethane (PU): preparation, properties and modification mechanisms

Zengping Zhang,Yongming Wei, Xiaosong Liu, Yinxiao Guo,Hao Liu,Jia Sun, Xinhe Yu, Shiyun Kan

CONSTRUCTION AND BUILDING MATERIALS（2023）

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摘要

•A composite-modified asphalt system with organic attapulgite (OATT) and polyurethane (PU) was proposed.•The structure and modification mechanism of materials were explored.•The synergistic effect of OATT and PU on the properties of asphalt was studied.•The contents of OATT and PU were recommended.

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关键词

Polyurethane,Attapulgite,Modified asphalt,Rheological properties

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