Evaluation of Crack Resistance Performance of Semi-Flexible Pavement Materials
Songqiang Chen, Jianfei Zheng, Xi Wu, Lufan Li
TL;DR
This study evaluates how well semi-flexible pavement materials resist cracking under different temperature conditions.
Contribution
The study introduces a comparative analysis of crack resistance in semi-flexible pavement materials using multiple experimental methods.
Findings
SFP materials show better crack resistance than SMA-13 at ambient and high temperatures.
SFP materials perform worse than SMA-13 in low-temperature crack resistance.
Using SFP materials can reduce pavement tensile strain by 30–50%.
Abstract
Semi-flexible pavement (SFP) materials have garnered extensive application and research attention owing to their exceptional deformation resistance. The crack resistance of SFP materials constitutes a critical aspect of their road performance. This study conducts a comprehensive analysis of the crack resistance of SFP materials through material characterization and structural mechanical response evaluation. To assess the cracking behavior of SFP materials across the entire temperature spectrum, three experimental methodologies were employed: low-temperature flexural tensile testing, indirect tensile testing, and semi-circular bending tensile testing. Experimental findings reveal that SFP materials exhibit superior crack resistance compared to SMA-13 under ambient and elevated temperature conditions, while demonstrating inferior performance relative to SMA-13 in low-temperature…
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Taxonomy
TopicsAsphalt Pavement Performance Evaluation · Concrete and Cement Materials Research · Innovative concrete reinforcement materials