A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Natural fibres in geotextiles for soil protection and erosion control
Several lines of erosion control products from natural fibres are now successfully being used in Europe, North America and Japan. These are 'non-woven' and woven rolled blankets and planar products from cereal straw, wood, coir and jute, as well as logs and rolls from straw and coir. They are used for temporary erosion and sediment control on slopes and river embankments. The estimated global use of raw materials for these products is of the order of 20000 metric t per year. With the exception of the relative longevity of coir, price and availability of the raw materials are the key contributors to their success. Where permanent solutions are needed, such as in soil separation, none of these products can compete with geotextiles from synthetics. Increased enforcement of environmental regulations and growing awareness of the benefits of products from renewable materials, as well as the increasing costs of competing products from synthetics, all tend to expand the existing market for natural products, where technically feasible. Several novel uses of NF-based geotextiles have also been proposed and appear technically feasible. They include interlayers to asphaltic overlays in the repair of cracked road surfaces. If such applications become reality, the use of natural fibres in geotextiles may double in volume, and the needed raw materials are readily available.
Natural fibres in geotextiles for soil protection and erosion control
Several lines of erosion control products from natural fibres are now successfully being used in Europe, North America and Japan. These are 'non-woven' and woven rolled blankets and planar products from cereal straw, wood, coir and jute, as well as logs and rolls from straw and coir. They are used for temporary erosion and sediment control on slopes and river embankments. The estimated global use of raw materials for these products is of the order of 20000 metric t per year. With the exception of the relative longevity of coir, price and availability of the raw materials are the key contributors to their success. Where permanent solutions are needed, such as in soil separation, none of these products can compete with geotextiles from synthetics. Increased enforcement of environmental regulations and growing awareness of the benefits of products from renewable materials, as well as the increasing costs of competing products from synthetics, all tend to expand the existing market for natural products, where technically feasible. Several novel uses of NF-based geotextiles have also been proposed and appear technically feasible. They include interlayers to asphaltic overlays in the repair of cracked road surfaces. If such applications become reality, the use of natural fibres in geotextiles may double in volume, and the needed raw materials are readily available.
Natural fibres in geotextiles for soil protection and erosion control
Leson, Gero (author) / Harding, Michael V. (author) / Dippon, Klaus (author)
2010
14 Seiten, 7 Bilder, 3 Tabellen, 5 Quellen
Book
English
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