Recycled keratin biofiber-asphalt composites: Investigations on compatibility and performance
Source abstract
Abstract
The study explored the potential of keratin biofiber, derived from waste human hair, in augmenting the engineering qualities of asphalt. Keratin biofiber (KBF) was obtained through an alkali degreasing process on waste hair. Subsequent to this, keratin biofiber-asphalt (KBF-A) composites were formed by mixing KBF with base asphalt. Advanced methods, including scanning electron microscopy, energy-dispersive spectrometry, thermogravimetric analysis, and Fourier transform infrared spectroscopy were employed to ascertain that the degreasing process enhanced the compatibility between the biofiber and asphalt by altering the biofiber's surface structure. The Response Surface Methodology (RSM) was applied to pinpoint the optimal parameters for formulating KBF-A. The results demonstrated that the integration of KBF fortified the asphalt's resistance to elevated temperatures, albeit with a minor compromise in its ductility at lower temperatures. The optimal KBF-A composite contained 0.348% KBF with a fiber length of 6.618 mm. Road performance assessments revealed that KBF bolstered the asphalt mixture's defense against high-temperature deformation, amplified its flexural strength at lower temperatures, and elevated its resistance to water erosion. These insights underscore the potential advantages of repurposing discarded human hair for engineering purposes and suggest its prospective value in advancing eco-friendly road construction practices in the future.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Dyeing and Modifying Textile Fibers · Natural Fiber Reinforced Composites · Lignin and Wood Chemistry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
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