| Issue |
E3S Web Conf.
Volume 569, 2024
GeoAmericas 2024 - 5th Pan-American Conference on Geosynthetics
|
|
|---|---|---|
| Article Number | 21006 | |
| Number of page(s) | 9 | |
| Section | Roads & Railways 3 | |
| DOI | https://doi.org/10.1051/e3sconf/202456921006 | |
| Published online | 19 September 2024 | |
Repeated load triaxial tests of WickGrid™ stabilized base materials
1 Department of Civil Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
2 Titan Environmental Containment LTD., Ile des Chenes, Manitoba R0A 0T1, Canada
* Corresponding author: chenglin918@uvic.ca
In road construction, geogrids are frequently used to stabilize the base course through their lateral confinement applied to the base materials. Wicking fabrics are also used to improve road performance by installing them at the road base and subgrade interface to remove water from the road and reduce the build-up of pore water pressure while providing a separate function to mitigate the weak subgrade intrusion into the base course. However, the combined use of these two materials on the road has not been reported. This study aims to investigate the effectiveness of using an innovative geosynthetic composite called WickGrid™ in stabilizing the base materials. WickGrid™ is made by high stiffness biaxial polypropylene (PP) geogrid, heat bonded to a continuous filament nonwoven geotextile having wicking properties. To achieve the objectives, repeated load triaxial tests were conducted on sand materials to evaluate the improvement of the base materials in accordance with the AASHTO T 307-99(2021). The specimens were stabilized with WickGrid™ placed at the mid-height of the specimens. Meanwhile, unstabilized specimens and specimens stabilized with biaxial geogrids were also tested for comparison. The outcomes of these tests would allow for quantifying the beneficial effects of WickGrid™ on the improvement of road bases.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.