Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Opening size recommendations for separation geotextiles used in pavements
AbstractGeotextiles are used in pavements as separators to prevent fouling of base course aggregate by subgrade soil. The ability of a geotextile to retain fines depends primarily on its opening size. A number of researchers have performed laboratory and field tests to study the retention behavior of geotextiles under dynamic conditions. However, the data generated during these studies has never been collectively analyzed. This article utilizes the published data to develop opening size recommendations for separation geotextiles used in pavements. The −85% size of soil is compared with the apparent opening size of geotextiles. The data indicates that for sand and silt size particles, a geotextile with apparent opening size (O95) less than −85% size (d85) of retained soil would perform satisfactorily. However, for fine soils in suspension, the ratio of geotextile O95 to soil d85 should be restricted to 0.5 or less.
Opening size recommendations for separation geotextiles used in pavements
AbstractGeotextiles are used in pavements as separators to prevent fouling of base course aggregate by subgrade soil. The ability of a geotextile to retain fines depends primarily on its opening size. A number of researchers have performed laboratory and field tests to study the retention behavior of geotextiles under dynamic conditions. However, the data generated during these studies has never been collectively analyzed. This article utilizes the published data to develop opening size recommendations for separation geotextiles used in pavements. The −85% size of soil is compared with the apparent opening size of geotextiles. The data indicates that for sand and silt size particles, a geotextile with apparent opening size (O95) less than −85% size (d85) of retained soil would perform satisfactorily. However, for fine soils in suspension, the ratio of geotextile O95 to soil d85 should be restricted to 0.5 or less.
Opening size recommendations for separation geotextiles used in pavements
Narejo, Dhani B. (Autor:in)
Geotextiles and Geomembranes ; 21 ; 257-264
31.03.2003
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Opening size recommendations for separation geotextiles used in pavements
| Online Contents | 2003
Design, Performance and Economics of Separation Geotextiles in Pavements
| British Library Conference Proceedings | 2004
Use of Geotextiles in Road Pavements
| British Library Conference Proceedings | 1998
Tentative Specifications for Geotextiles in Road Pavements
| British Library Conference Proceedings | 1991