Document Type
Article
Publication Date
1-1-2008
Abstract
Peaty soils are not suitable as foundation soils as they are weak and highly compressible. This paper describes a study on peat soil stabilisation to improve its physical and engineering properties. It investigates the effect of additives (binder amount 5, 10 and 15 (85cement, 15 bentonite) and range of sand 5 to 25 on the index properties as well as, pH, compaction, California Bearing Ratio and unconfined compressive strength of tropical peat soils. The amount of additives added to the peat soil sample was investigated in terms of the percentage of the dry soil mass. The results showed that of the additive admixtures altered the engineering properties of tropical peat soils. The soil liquid limit was found to decrease with increase of the additive content. The pH was found to increase with increase binder. The maximum dry density was found to increase while the optimum moisture content was found to decrease with the increase of the additive content. The California Bearing Ratio of the soil was found to increase significantly with increase in the additives.
Keywords
Bentonite, Cement, Chemical stabilization, Peat soil, Sand, Additives, Bearing capacity, Bearings (structural), Binders, Cement additives, Cements, Compressive strength, Curing, Doping (additives), Drying, Food additives, Ice, Peat, pH, pH effects, Soil mechanics, Stability, Strength of materials, Surface analysis, Tropics, additive contents, California bearing ratio (CBR), Dry densities, Dry soil, engineering properties, Foundation soils, Index properties, Liquid limit (LL), Optimum moisture content, peat soils, stabilisation, Unconfined compressive strength (UCS), Soils, compaction, compressibility, dry density, moisture content, soil stabilization
Divisions
fac_eng
Publication Title
Electronic Journal of Geotechnical Engineering
Volume
13 E
Additional Information
Cited By (since 1996):11 Export Date: 16 December 2013 Source: Scopus Language of Original Document: English Correspondence Address: Deboucha, S.; Dept. of Civil Engineering, University of Malaya, Kuala Lumpur, Malaysia; email: debouchasadek@yahoo.com References: Huat, B., (2004) Organic and Peat soil Engineering Kuala Lumpur, , University Putra Malaysia; Alwi, A., Ground Improvement on Malaysia Peat Soils Using Stabilised peat-Column Techniques (2008), PhD thesis. University of MalayaBS 1377, Part 1 - 4 (1990) Soils for civil engineering purposes, British Standards Institution. London. UKBS 1924, Part 5 - 9 (1990) Soils for civil engineering purposes, British Standards Institution, London. UKBargado, D.T., Soil compaction and soil stabilization stabilization by admixtures (1996) Proceeding of Seminar on ground Improvement Application to Indonesian soft soils, pp. 23-26. , Indonesia: Jakarta; Van Impe, W.F., (1989) Soils Improvement Techniques and their Evolution, , A.A. Balkema; Edil, T.B. (2003) Recent advances in geotechnical characterization and construction over peat organic soils.Proceedings 2nd International Conference on Advances in Soft Soil Engineering and TechnologyAhnberg, H., Ljungkrantz, C., Holmqvist, L., Deep stabilization of different types of soft soils (1995) Proceedings 11th ECSMFE, 7, pp. 167-172. , Copenhagen