Issues

Clogging

Lab Results for Clogging

Lab tests have shown that clogging is not an issue in buried fabrics. The table below summarizes the SEM analyses results. In general, all wicking fabric fibers on the surface suffered from the clogging effect. However, only 6.67% of the wicking fabric fibers beneath the surface suffered from the clogging effect. This indicates that even though the surface was contaminated and the drainage paths were blocked, the wicking fibers beneath the surface were well protected and worked effectively as a drainage material to transport water laterally under unsaturated conditions.

image
SEM Analysis Results

SEM Images of Clogging Effect
image
(a) Intact Sample (Surface)

image
(b) Fabrics on Surface

image
(c) Fabrics beneath Surface

image
(d) Wicking Fabrics Comparison


Mechanical Failure

Permanent Deformation (New Geotextile)
image
(a) Intact Geotextile Sample

image
(b) Wicking Fabric Yarn

image
Permanent Deformation Severity

Mechanical Failure
image
(a) Permanent Deformation (Surface)

image
(b) Puncturation Failure (Surface)


Aging

image
(a) Beaver Slide Sample 3

image
(b) Beaver Slide Sample 11 (Surface)

image


Salt Concentration

Salt Concentration for Soluble and Insoluble Salt (Drying Process)
image
(a) 1.5 g/L (NaCl)

image
(b) 1.5 g/L (CaCO3)

image
(c) 15 g/L (NaCl)

image
(d) 15 g/L (CaCO3)

Salt Concentration for Soluble and Insoluble Salt (Wetting Process)
image
(a) 15 g/L (NaCl)

image
(b) 15 g/L (CaCO3)

image
Full Scale Spectrum Analysis

image
Soluble Salt Concentration



© 2018 Beaver Slide Project. All rights reserved.
Website Developed and Maintained by Wolf Creative Services