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Laboratory Evaluation of Permeability Characteristics of Cocologs

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Cocologs, which are made out of coir fibers, have proven to be an erosion control product along river banks. Cocologs are densely packed coconut fibers wrapped in coir net. This paper presents the laboratory experimental results on the permeability characteristics of cocologs. The permeability of cocologs is a critical parameter in the design of cocolog-stabilized geostructures. In this study, the experiments to determine the permeability of cocologs were carried out in a modified permeability test apparatus using clear water as the permeating medium. The effect of different parameters such as the density of cocolog, opening size (d) of outer cover and orientation of cocologs on the permeability of cocolog was investigated. It was found that the permeability of cocologs increases from 20 mm/s to 85 mm/s when density decreases from 220 kg/m3 to 100 kg/m3. The opening size of the outer net covering of cocologs should not be reduced below a d/L (opening size to the length of cocologs) ratio of 0.0075. It is concluded that the density of cocolog is the only governing parameter which has a significant influence on the permeability of cocologs. Furthermore, an empirical relationship was developed to determine the permeability of cocologs considering the effect of different parameters.

摘要

Cocologs,椰壳制成的纤维,已被证明是一个沿着河岸侵蚀控制产品. Cocologs密集的椰子纤维包装在棕网. 介绍了实验室实验结果cocologs的渗透特性. cocolos的渗透性是cocolog稳定地球结构设计中的一个重要参数. 在这项研究中,实验确定cocologs的渗透性进行了修改后的渗透率试验装置使用清水作为渗透介质. 不同参数的影响如cocolog的密度、孔尺寸的外盖和方向(d) cocologs cocolog渗透率的研究. 这是发现,cocologs渗透率的增加从20 mm / s – 85 mm / s从220公斤/立方米密度减少100公斤/立方米. 外的开口大小净覆盖cocologs不应该减少低于d / L (cocologs开口大小长度)比率为0.0075. 得出cocolog是唯一的密度控制参数对cocologs的渗透性有很大的影响. 此外,实证关系是确定的渗透率cocologs考虑不同参数的影响.

Additional information

Funding

This work was supported by the Kerala State Council for Science, Technology and Environment [Grant No. 1566/2016/KSCSTE].

Acknowledgments

The authors are thankful to the Kerala State Council for Science, Technology and Environment, Kerala, India (Grant No. 1566/2016/KSCSTE) for providing financial assistance for research work under Engineering Technology Programme (ETP).

Source: https://www.tandfonline.com/doi/full/10.1080/15440478.2020.1723779?af=R

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Best CBD Deals

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Visit our community site for vetted suppliers at http://theCBD.place. It’s time that this subject was given more internet exposure. We are here to discuss topics related to medical marijuana and our experiences using CBD. Please do not assume that anyone here is a medical professional.

Source: https://www.reddit.com/r/CBD/comments/k3hxe7/best_cbd_deals/

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New to cbg

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Hey, I have really bad anxeity and I’m looking for a relief. I’ve been using cbd for a long time and it does not really help. Yesterday I heard about cbg and I saw a lot of positive reviews. I’m really scared of mental health issues. I have really bad experience with thc, and I herd that cbg effects are similar to thc effects. Do u have any experience with cbg and do u think that is safe?

Source: https://www.reddit.com/r/CBD/comments/k3h1z1/new_to_cbg/

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Celine designer handbags snatched from Melbourne CBD worth $12000

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Victoria Police are searching for two men after $12,000 worth of designer handbags were snatched from a store in Melbourne's CBD. Investigators … Source:

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