000			a
999			_c20589 _d20589
003			OSt
005			20240116105949.0
008			240116b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_922767 _aSawwaf, Mostafa A. El
245			_aImprovement of collapsible soil characteristics using environmentally friendly materials
250			_aVol.53(5), Oct
260			_aUSA _bSpringer _c2023
300			_a1202-1212p.
520			_aProblematic soils have always been of interest to geotechnical engineers. There are many traditional means used to stabilize problematic soil, but they cause environmental problems. Researchers have explored alternative methods for soil stabilization, such as biological approaches. In this study, gelatin and sodium alginate have been investigated as eco-friendly stabilizers for collapsible soil. In order to investigate the effectiveness of mixing collapsible soil with biopolymers, compaction characteristics, shear strength, collapse index, and California bearing ratio (CBR) were estimated before and after treatment. The additives’ effect on the microstructure of the soil was investigated through scanning electron microscopy (SEM) and X-ray diffraction (XRD) tests. The biopolymers were added to the soil in proportions of 0, 0.5, 1, 1.5, 2, 3, and 4%. The findings showed that the collapse index was reduced by about 82% and 95% when the soil was combined with 4% gelatin and 4% sodium alginate, respectively. The soil was stabilized as a result of this modification. The results also showed that with increasing gelatin and sodium alginate content, the optimum moisture content, cohesion intercept, and CBR value increased, but the maximum dry density, Young’s modulus, and friction angle decreased. XRD and SEM analyses revealed that gelatin and sodium alginate changed the soil’s microstructure. According to the results, sodium alginate and gelatin can be used as sustainable stabilizers to take place of the traditional additives.
650		0	_94690 _aConstruction Engineering and Management (CEM)
700			_922768 _aMarawan, M. Shahien
773	0		_dSwitzerland Springer _tIndian geotechnical journal _x 0971-9555
856			_uhttps://link.springer.com/article/10.1007/s40098-023-00738-z _yClick here
942			_2ddc _cAR