... aggregate, recycled asphalt pavement, foundry sand, and recycled asphalt shingle). Upon completion of the LTF tests, grain size analyses, permittivity tests, image analyses, and piping measurements were conducted to investigate the clogging and retention behavior of the geotextiles. The results indicated...

... in the industry but there has been a lack of research on their properties. To advance the understanding of sock behaviour, the water permittivity and filtration properties of two types of grout sock have been investigated in their unstretched state. From the permittivity tests, it is shown that water flow through...

..., particle size analyses, permittivity tests, piping measurements, and image analyses were conducted to evaluate clogging and retention performances. When the clogging ratios and piping measurements were considered, all compost-geotextile combinations yielded acceptable clogging and retention performance...

... that is commonly used in highway underdrain filter systems in Virginia was chosen for the study (VDOT 2007). This geotextile meets the design specifications of several State Departments of Transportation in the U.S. because of its relatively high apparent opening size (AOS) and permittivity. Table 3 summarizes...

... geotextile samples (permittivity) while under different uniaxial and biaxial tensile strains ranging from 0 to 20%. Comparison of test and predicted results suggests the values of the shape factor β, describing path tortuosity and the dimensionless parameter ξ to account for the evaluations...

... of 25 mg/l. However, no significant reduction of total phosphorus EMC occurred through the filters. Porosities and characteristic pore opening sizes of the field-exhumed geotextiles dropped 65–82%, accompanied by comparable permittivities; however, the final hydraulic conductivities of the field-exhumed...

... studied, abrasion is the conditioning mechanism which most affects their tensile strength. An increase of the characteristic opening size of the geosynthetics was observed, while their permittivity did not increase. This may be caused by differences in the test set-ups. Installation damage also results...

... properties and high permittivities. The dispersions had a low viscosity and their filtration under pressure led to large amounts of filtrate. A further two GCLs contained natural sodium bentonites and the remaining four contained sodium-activated calcium bentonites. Their permittivities, swell indices...