Optimization Design and Mechanism Analysis of Basalt Fiber Reinforced Asphalt Mastics
GUO Yinchuan
LI Zhennan
SHEN Aiqin
QIN Xiao
WEI Ziyu
Abstract：Orthogonal experiment was carried out to explore the influence of fiber length,fiber content and asphalt grade on adsorption capacity of basalt fiber,low temperature performance and freeze-thaw shear performance of basalt fiber reinforced asphalt mastics,and optimal combination of basalt fiber reinforced asphalt mastics was recommend based on fuzzy analysis.And the strengthening mechanism of basalt fiber was revealed based on scanning electron microscope(SEM).The results show that basalt fiber length and fiber content are the most significant factors which influence the adsorption capacity of basalt fiber,ultimate tension and tensile crack energy in low temperature.The grade of asphalt is the main factor which influences freeze-thaw shear strength.The optimal combination of basalt fiber reinforced asphalt mastics in the heavy-frozen area is 90 # asphalt,9 mm basalt fiber and 7％ fiber content.The infiltration between basalt fiber and asphalt is preferable,and net lapping structure formed by basalt fiber enhances the crack resistance and delays the expansion of micro-cracks of basalt fiber reinforced asphalt mastics.
Keywords：basalt fiberasphalt masticsheavy-frozen areafuzzy theoryorthogonal experimentalmicro-mechanism
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 47-53 )