Thermal Anti-Cracking Investigation of Asphalt-Based Seal Technology for Airport Base Layer in Frozen Ground Region

• DOI: 10.2139/ssrn.4110452
• Publication Date: 2022-05-28T12:11:05Z
• Authors: Ling Xu; Zifeng Zhao; Jin Li; Xianrui Li; Changshan Jiang; Feipeng Xiao
• Keywords: Base (topology)

In frozen ground regions, the problems of subgrade frost damage and slab cavity were common distresses cement concrete pavement in civil airports, causing major safety hazard during daily operation airport. It was necessary to explore prevention technology airport due damage. This research investigated anti-cracking thermal properties asphalt-based composite seal as intermediately isolated base layer cold regions. The stiffness stress relaxation behaviors binders evaluated at low temperatures by bending beam rheometer test, terms various modifiers with styrene-butadiene rubber liquid nitrile rubber. Based on dissipation energy method, viscoelastic characteristics asphalt materials analyzed Burgers model. Additionally, response regions low-temperature rheology expanded through master curve establishment flexural creep compliance. binder characterized gravity analysis differential scanning calorimetry test. Finally, relationships between indices conducted release polymer modification impacts cracking resistance statistical analysis. study revealed that temperature essential efficient should be recommended consideration for