Pore size distribution of hybrid nonwoven geotextiles

A monolithic layered nonwoven–woven geotextile for use with drainage geocomposites in coal combustion residual projects

“…As the mass per unit area approached the higher values in the range corresponding to the lower limit of AOS and filter opening size (FOS) values, piping became negligible or did not occur at all (1, 2, 6, 10, and 29). At least four references in this paper refer to a hybrid geotextile consisting of a woven and a NW-NP (references 26 and 28 in Table 2) or two different types of NW-NP geotextiles (Liu et al, 2009;Rawal and Saraswat, 2011). In all four cases, the hybrid geotextile appears to have been made on a laboratory scale as a large-scale production was not mentioned and neither was a method of woven-NW bonding provided.…”

Estimating Optimal Geotextile Type for Controlling Soil Erosion

“…Gabr and Akram (1996), Aydilekand Edil (2003) and Liu and Chu (2006) present studies with respect to filtration of woven and non-woven geotextiles. Mechanical and physical properties of non-woven geotextiles produced from polypropylene and jute fibers in definite proportions have been analyzed and compared (Datta, 2007, Mitchell et al, 2003and Rawal and Sayeed, 2013 distribution is a prerequisite for evaluating the performance of geotextiles for various functions including drainage, filtration and separation (Rawal and Harshvardhan, 2011). The theory and explanation regarding the Maheshwari and Deepak, 2008 is to conclude the behavior of the geotextile filter for the locally (Roorkee, India) available soils using three different geotextiles.…”

Performance of nonwoven geotextiles on soil drainage and filtration

“…Also geotextiles have been successfully produced from synthetic or natural fibres depending upon their short-and long-term applications. The characteristics of natural fibres have led to their use in a range of geotextile applications namely, soil erosion control, vertical drains, road bases, river bank protection and slope stabilisation (Ahn, Cho, & Yang, 2002;Datta, 2007;Datye & Gor, 1994;Lekha, 2004;Mitchell et al, 2003;Rawal & Anandjiwala, 2007;Rawal & Saraswat, 2011a, 2011bSaha et al, 2012;Subaida, Chandrakaran, & Sankar, 2009;Sanyal, 2017). Other applications of such geotextiles are found in the field of chemical engineering and processing, mainly for solid/fluid ARTICLE HISTORY received 8 march 2017 accepted 6 december 2017 KEYWORDS geotextile; filtration; drainage; efficiency; porous media and structural parameters separation.…”