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Effect of soil grain size distribution on the mechanical damage of nonwoven geotextiles under repeated loading

Effect of soil grain size distribution on the mechanical damage of nonwoven geotextiles under repeated loading
Effect of soil grain size distribution on the mechanical damage of nonwoven geotextiles under repeated loading
Installation processes (which induce mechanical damage) may cause undesirable changes on the properties of geosynthetics, affecting their performance. This work evaluates the effect of mechanical damage on the short-term tensile behaviour of two nonwoven geotextiles (with different masses per unit area). The geotextiles were damaged in laboratory using a standardised procedure and an artificial aggregate (corundum) and eight other soils. The damage induced was characterized using wide-width tensile tests. Results showed reductions of the tensile strength of both geotextiles, which depended on the grain size distribution and uniformity of the soils and on the mass per unit area of the geotextiles. The reduction in tensile strength provoked by corundum was higher than the decreases caused by most of the other soils. The mechanical damage tests also led to a reduction of elongation at maximum load and an increase of stiffness.
geotextiles, nonwoven, mechanical damage, soils, tensile properties
2199-9260
1-7
Carlos, D.
b4afd398-fce4-4cda-a29f-dc817adc76f6
Carneiro, J.R.
6757a5e0-e57d-466e-9f57-9fd9bdf98b86
Pinho-Lopes, M.
b7e5f7d6-90d8-48cc-b991-0495445fcea4
Lopes, M.L.
dca0c06e-aaa8-47df-923f-5fa9973552ba
Carlos, D.
b4afd398-fce4-4cda-a29f-dc817adc76f6
Carneiro, J.R.
6757a5e0-e57d-466e-9f57-9fd9bdf98b86
Pinho-Lopes, M.
b7e5f7d6-90d8-48cc-b991-0495445fcea4
Lopes, M.L.
dca0c06e-aaa8-47df-923f-5fa9973552ba

Carlos, D., Carneiro, J.R., Pinho-Lopes, M. and Lopes, M.L. (2015) Effect of soil grain size distribution on the mechanical damage of nonwoven geotextiles under repeated loading. International Journal of Geosynthetics and Ground Engineering, 1 (1), 1-7. (doi:10.1007/s40891-015-0011-9).

Record type: Article

Abstract

Installation processes (which induce mechanical damage) may cause undesirable changes on the properties of geosynthetics, affecting their performance. This work evaluates the effect of mechanical damage on the short-term tensile behaviour of two nonwoven geotextiles (with different masses per unit area). The geotextiles were damaged in laboratory using a standardised procedure and an artificial aggregate (corundum) and eight other soils. The damage induced was characterized using wide-width tensile tests. Results showed reductions of the tensile strength of both geotextiles, which depended on the grain size distribution and uniformity of the soils and on the mass per unit area of the geotextiles. The reduction in tensile strength provoked by corundum was higher than the decreases caused by most of the other soils. The mechanical damage tests also led to a reduction of elongation at maximum load and an increase of stiffness.

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More information

Accepted/In Press date: 16 January 2015
e-pub ahead of print date: 3 February 2015
Additional Information: The final publication is available at link.springer.com
Keywords: geotextiles, nonwoven, mechanical damage, soils, tensile properties
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 374955
URI: https://eprints.soton.ac.uk/id/eprint/374955
ISSN: 2199-9260
PURE UUID: ebf77f34-2376-4a4a-8860-d81c8b5e1427

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Date deposited: 09 Mar 2015 11:05
Last modified: 17 Jul 2017 21:21

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