Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Field Performance of Sub-Bases Constructed with Industrial ByProducts and Geosynthetic Reinforcement
Alternative methods for providing a stable platform over soft subgrades were evaluated using a 1.4-km section along a Wisconsin state highway that incorporated twelve test sections to evaluate nine different stabilization alternatives. A variety of industrial by-products were evaluated for stabilization. The industrial by-products included foundry slag, foundry sand, bottom ash, and fly ash as subbase layer materials. Additionally, several types of geosynthetics sections were incorporated as alternative platforms including geocells, a non-woven geotextile, a woven geotextile, a drainage geocomposite, and a geogrid, are presented in this report. The same pavement structure was used for all test sections except for the subbase layer, which varied depending on the properties of the alternative material being used. All test sections were designed to have approximately the same structural number as the conventional pavement structure used for the highway, which included a subbase of granular excavated rock. Observations made during and after construction indicate that all sections provided adequate support for the construction equipment and that no distress is evident in any part of the highway. Each of the alternative stabilization methods, except a subbase prepared with the specific high clay-content foundry sand used in this project, appeared to provide equivalent working platform like the control section constructed with excavated rock. However, the foundry sand subbase is also providing adequate support and other foundry sands with lower clay content are expected to provide even better support.
Field Performance of Sub-Bases Constructed with Industrial ByProducts and Geosynthetic Reinforcement
Alternative methods for providing a stable platform over soft subgrades were evaluated using a 1.4-km section along a Wisconsin state highway that incorporated twelve test sections to evaluate nine different stabilization alternatives. A variety of industrial by-products were evaluated for stabilization. The industrial by-products included foundry slag, foundry sand, bottom ash, and fly ash as subbase layer materials. Additionally, several types of geosynthetics sections were incorporated as alternative platforms including geocells, a non-woven geotextile, a woven geotextile, a drainage geocomposite, and a geogrid, are presented in this report. The same pavement structure was used for all test sections except for the subbase layer, which varied depending on the properties of the alternative material being used. All test sections were designed to have approximately the same structural number as the conventional pavement structure used for the highway, which included a subbase of granular excavated rock. Observations made during and after construction indicate that all sections provided adequate support for the construction equipment and that no distress is evident in any part of the highway. Each of the alternative stabilization methods, except a subbase prepared with the specific high clay-content foundry sand used in this project, appeared to provide equivalent working platform like the control section constructed with excavated rock. However, the foundry sand subbase is also providing adequate support and other foundry sands with lower clay content are expected to provide even better support.
Field Performance of Sub-Bases Constructed with Industrial ByProducts and Geosynthetic Reinforcement
T. B. Edil (Autor:in) / C. H. Benson (Autor:in) / A. Senol (Autor:in) / M. Bin-Shafique (Autor:in) / W. Kim (Autor:in)
2005
118 pages
Report
Keine Angabe
Englisch
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