Development of Design Guidelines for Composite-Geogrid Reinforced Unpaved Pavements
نویسندگان
چکیده
It is well-known that the inclusion of composite geogrids (CGGs) into pavement structure assists to maximise benefits geosynthetic-reinforcement in flexible pavements. However, use CGGs practice limited Queensland, Australia regardless its potential benefits, mainly due absence rational design guidelines. Therefore, this study was conducted develop guidelines unpaved granular pavements/working platforms constructed with local materials and reinforced at base-subgrade interface. Firstly, six laboratory-scale model tests were varying base thickness as 200, 300 400 mm, without CGG reinforcement interface subgrade-base layer. In all these tests, a 500 mm thick subgrade prepared achieve CBR value 2.5%, then layer compacted on top 91% maximum dry density, steel box length, width height 1 m, m 1.2 respectively. The models subjected repeated loading (up 150, 000 cycles) centre using 200 diameter plate simulate tyre pressure 550 kPa. By following step-by-step procedure, developed based rut depths both unreinforced obtained after 5000 load cycles every 25,000 up 150,000. Both economic environmental can be by adopting proposed
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Laboratory Evaluation of Geogrid-Reinforced Flexible Pavements
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ژورنال
عنوان ژورنال: Lecture notes in civil engineering
سال: 2022
ISSN: ['2366-2565', '2366-2557']
DOI: https://doi.org/10.1007/978-3-030-87379-0_28