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- Title
Experimental Investigation of the Behavior of Soil Reinforced with Used PET Bottles.
- Authors
Rahimi, Mohammadyar; Parvizi Omran, Milad; Moghaddas Tafreshi, Seyed Naser; Norouzi, Amirhossein
- Abstract
As a result of the developing industry and growing population a significant increase has happened in the volume of waste plastic bottles, consequently, their disposal has become a major concern. One possible recycling method is to use them in soil reinforcement applications. In this study, the benefit of the soil-filled Polyethylene Terephthalate (PET) bottles for soil reinforcement was examined by a series of laboratory-scale tests. Three sizes of bottles with and without peripheral polypropylene (PP) belt were considered. Also, an extra layer of geogrid over bottle reinforced zone was examined in limited tests. The results showed bearing capacity improvement in all reinforcing arrangements, which increases as the bottle size increases. Further improvement happened when PP belt was provided, superior to the performance of a single layer of geogrid for all three bottle sizes. Eventually, an extra layer of geogrid over the bottle reinforced zone delivered a stiffer response and higher bearing pressure at much lower displacement, favorable in situations where soil settlement is of utmost importance. The combined use of soil-filled bottles and a single layer of geogrid may eliminate the demand for multilayer geosynthetic reinforcement, and also be a possible alternative for waste PET bottle recycling programs.
- Subjects
REINFORCED soils; PLASTIC scrap; BEVERAGE container recycling; POLYETHYLENE terephthalate; PLASTIC bottles; BEARING capacity of soils
- Publication
Geotechnical & Geological Engineering, 2023, Vol 41, Issue 3, p1909
- ISSN
0960-3182
- Publication type
Article
- DOI
10.1007/s10706-023-02380-1