Effect of Keratin Fibers on Setting and Hydration Characteristics of Portland Cement

ABSTRACT

The study investigated the effect of keratin fibers from waste chicken feather on the hydration characteristics of Type I Portland cement. The effect of varying amount of fibers on cement setting time, thermal and spectroscopic characteristics was investigated. Cement mix containing keratin fibers up to 6% by mass of cement showed increased initial and final setting times by 46% and 54%, respectively, compared to unmodified control samples. Thermal and infrared spectroscopic analyses suggest that keratin fibers possibly blocked hydrations sites or prevented cement crystallization which retarded cement curing.

摘要

该研究研究了废鸡羽毛角蛋白纤维对I型波特兰水泥水化特性的影响. 研究了不同量纤维对水泥设置时间、热和光谱特性的影响. 与未改性控制样品相比，水泥质量中含有角蛋白纤维的水泥混合物的初始和最终设置时间分别增加了46%和54%. 热谱和红外光谱分析表明，角蛋白纤维可能堵塞水化部位或阻止水泥结晶，从而阻碍水泥固化.

KEYWORDS:

• Keratin
• chicken feather
• cement hydration
• setting time
• composites

关键词:

• 角蛋白
• 鸡羽毛
• 水泥水化
• 设置时间
• 复合材料

Acknowledgments

The authors wish to thank the Discovery-Applied Research and Extension for Trans/Interdisciplinary Opportunities (DARETO) Grants Program, Commission on Higher Education (CHED) for providing funding support for this project; Mr. NU Valguna of the Department of Forest Products and Paper Science, CFNR-UPLB for assistance in feather collection, preparation and board formation.

Conflict of Interest

The authors declare that they have no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.

Additional information

Funding

This work was supported by the Commission on Higher Education, DARETO Grants program.