Effect of polymers on swelling potential of expansive soils
| Autor: | Amer Ali. Al-Rawas, Mehdi Mirzababaei, Seyyed Shahaboddin. Yasrobi |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Polyvinyl acetate
Materials science Soil test Expansive clay Soil Science Building and Construction Geotechnical Engineering and Engineering Geology complex mixtures chemistry.chemical_compound chemistry Mechanics of Materials Soil water Vinyl acetate medicine Composite material Methyl methacrylate Swelling medicine.symptom Water content Nuclear chemistry |
| Zdroj: | Proceedings of the Institution of Civil Engineers - Ground Improvement. 162:111-119 |
| ISSN: | 1755-0769 1755-0750 |
| DOI: | 10.1680/grim.2009.162.3.111 |
| Popis: | This paper introduces new soil stabilisers for reducing the swelling potential of expansive soils. In this study three different polymers (furan, poly(methyl methacrylate) (PMMA) and poly(vinyl acetate) (PVA)) were utilised as soil stabilisers. For evaluating the effect of these polymers on swelling potential and microfabric of expansive soils, three soil samples of high plasticity index were selected. First the engineering, chemical and mineralogical characteristics of the untreated soils were determined, and three different pairs of dry density and water content (dry of optimum, optimum and wet of optimum) were chosen, from standard Proctor compaction curve. Treated soil specimens were prepared at 3%, 5% and 10% of furan content and 1%, 3% and 5% of polymethyl methacrylate and polyvinyl acetate content. The addition of polymethyl methacrylate and polyvinyl acetate can also diminish the swelling potential of soil specimens, but to a lesser degree. The addition of additives produced aggregations and clay-granular matrices within the fabric, which reduced the swelling potential of the soil samples. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|