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ArtikelSoil Reinforcement With Recycled Carpet Wastes  
Oleh: Ghiassian, Hossein ; Poorebrahim, Gholamreza ; Gray, Donald H.
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Waste Management & Research vol. 22 no. 2 (Apr. 2004), page 108-114.
Topik: Fibre reinforcement; sand; shear strength; recycled carpet waste; wmr 722–3
Fulltext: 108.pdf (1.36MB)
Isi artikelA root or fibre-reinforced soil behaves as a composite material in which fibres of relatively high tensile strength are embedded in a matrix of relatively plastic soil. Shear stresses in the soil mobilize tensile resistance in the fibres, which in turn impart greater strength to the soil. A research project has been undertaken to study the influence of synthetic fibrous materials for improving the strength characteristics of a fine sandy soil. One of the main objectives of the project is to explore the conversion of fibrous carpet waste into a valueadded product for soil reinforcement. Drained triaxial tests were conducted on specimens, which were prepared in a cylindrical mould and compacted at their optimum water contents. The main test variables included the aspect ratio and the weight percentage of the fibrous strips. The results clearly show that fibrous inclusions derived from carpet wastes improve the shear strength of silty sands. A model developed to simulate the effect of the fibrous inclusions accurately predicts the influence of strip content, aspect ratio and confining pressure on the shear strength of reinforced sand.
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