Studies of Modulus of Resilience on Unpaved Roads Reinforced with Untreated/Treated Coir Geotextiles

ABSTRACT

Using the repeated or cyclic load test in a laboratory, the current study investigates the modulus of resilience of unpaved roads model reinforced with untreated/treated woven/non-woven coir geotextile. P-aminophenol, sodium periodate, and sodium hydroxide were the chemicals that used to treat the coir geotextiles. Untreated/treated coir geotextiles were placed at the interface under unsoaked/soaked conditions, and laboratory cyclic load testing for the sand layer overlaying clay was performed in a test tank. Models reinforced with untreated/treated woven coir geotextiles performed better than models reinforced with untreated/treated non-woven coir geotextiles, according to the study’s findings. Furthermore, in the unsoaked state, models reinforced with untreated/treated woven and non-woven coir geotextiles better than the models reinforced with soaked coir geotextiles in terms of modulus of resilience. Untreated/treated woven/non-woven coir geotextiles can increase the material’s maximum energy per volume that it can absorb in unpaved roads when placed at the interface of the sand layer overlying clay. This study is very beneficial, especially in situations where highway subgrade design necessitates a reasonably accurate estimation of strength and stiffness characteristics.

摘要

本研究利用实验室中的重复或循环荷载试验, 研究了未经处理/处理的编织/无纺布椰壳土工布加固的未铺砌道路模型的回弹模量. 对氨基酚, 高碘酸钠和氢氧化钠是用于处理椰壳土工布的化学品. 在未浸泡/浸泡的条件下, 将未处理/处理的椰壳土工布放置在界面处, 并在试验箱中对粘土上覆的砂层进行实验室循环荷载试验. 根据研究结果, 用未经处理/处理的椰壳机织土工布加固的模型比用未经处理/处理的椰壳机织土工布加固的模型表现更好. 此外, 在未浸泡状态下, 用未处理/处理的编织和非编织椰壳土工布加固的模型在回弹模量方面优于用浸泡椰壳土工布加固的模型. 未经处理/处理的编织/无纺布椰壳土工布可以增加材料的最大单位体积能量, 当放置在粘土上的砂层界面时, 它可以在未铺砌的道路中吸收. 这项研究非常有益, 尤其是在公路路基设计需要合理准确估计强度和刚度特性的情况下.

KEYWORDS:

• Woven coir geotextiles
• non-woven coir geotextiles
• chemical treatment
• cyclic loading
• unpaved road
• soaked

关键词:

• 椰壳土工织物
• 无纺椰壳土工布
• 化学处理
• 循环荷载
• 未铺砌道路
• 湿透的

The following are the main highlight of the study:

1. To study the modulus of resilience of untreated woven coir geotextiles.

2. To study the scanning electron microscopy of untreated woven coir geotextiles.

3. To study the modulus of resilience of untreated non woven coir geotextiles.

4. To study the effect of chemical treatment on modulus of resilience characterization of woven/non-woven coir geotextiles.

5. To study the effect of chemical treatment on surface morphology of non-woven coir geotextiles.

Ethical approval (statement)

We confirm that all the research meets ethical guidelines and adheres to the legal requirements of the study country. The research does not involve any human or animal welfare related ethical matters.

Acknowledgments

We thank National Institute of Technology, Srinagar, Jammu and Kashmir 190006, India for providing us, platform insight and expertise that greatly help the research. We would also like to show our gratitude to the parents and dear friends for sharing their pearls of wisdom with us during the course of this research.

Disclosure statement

No potential conflict of interest was reported by the author(s).