| Abstrakt: |
Peat or enormously organic soils remain fine identified on behalf of their excellent compressibility, regular humidity contented, and lesser shear strength and established a settlement. Properties of peat soil differ from Place to Place according to climatic conditions and other things. It is problematic to construct the structures of this type of soil, so the mechanics of soil are required to improve it. It is originating that the organic matter stimuli the stabilization result. Therefore, locally available materials like fly ash and ABS plastic were added as the admixtures to stabilize this soft soil of high organic content. The admixtures play a different character in the stabilization of the soil. The admixtures of both fly ash and ABS plastic add together to the peaty soil mass in the range of 0%, 2%, 4%, 6%, 8%, 10%, and 12%, respectively. The results of a laboratory test show that the maximum dry density (MDD) is 11.85 kN/m3 with an optimal moisture content (MOC) of 60% and 10% mixture. Moreover, the CBR value is determined for the same Percentage of Admixture is observed that maximum value as 55.22%. So, this is suitable for the subgrade as per IRC 37-2012. A road subgrade was laid with treated peat soil, which obtain the maximum CBR value at 10% of Admixture (FA and ABS plastic) and compacted by applying heavy wheel rolled vehicles as per IRC36-1970 with the required water content of the treated peat soil in the field. A field test of the core cutter method is done at 2m intervals on the well-compacted subgrade. The field density is observed as 11.47kN/m3. In this research results, 10% of the Admixture of the treated peat soil shows a relative compaction factor of 96.79%. As Per Indian Standard, the Percentage of compaction factor more than 95%. So this treated soil is suitable for the formation of subgrade. [ABSTRACT FROM AUTHOR] |
