Soil stabilization is one of the modification technique used to improve the geotechnical properties of soil and has become the major practice in construction engineering which enables the effective utilization of industrial wastes as a stabilizer. Modifications in properties of marine clay by lime are investigated to compare the nano-silica particles’ effect in mechanical properties of clay. This study evaluates the treatment of fine grained soil by adding steel furnace slag and lime. The performance of GBS with fly ash modified soils was evaluated using compaction and california bearing ratio (CBR) test. ABSTRACT A lateritic soil classified as sandy clay or (CL) and A-7-6 (5) according to Unified Soil Classification System (USCS) and AASHTO classification system respectively,was treated with up to 10% pulverized steel slag (an industrial waste product) by dryweight of soil. Keywords: steel furnace slag; electric arc furnace slag; basic oxygen furnace slag; ladle metallurgy furnace slag; argon oxygen decarburization slag; concrete. The uses of byproducts such as blastfurnace slag and steel slag [electric arc furnace slag and basic oxygen steel (BOS) slag, and ground granulated blastfurnace slag] have long been established in a number of … A series of tests to measure consistency limits, free swell index, compaction parameters and unconfined compressive strength of natural and stabilized soils. However, because slag contains heavy metals at concentrations that are higher than in most soil, questions have been raised regarding the need to evaluate the potential human health and environmental hazards associated with current applications. , This paper reports the experimental results of using two chemical additives to enhance the properties of marine clay collected from Vypin, Cochin area. Celik and Nalbantoglu [ 27 ] studied the effect of ground granulated blast furnace slag (GGBS) on the control of swell associated with lime stabilized sulphate bearing soil. Soil Stabilization Study by using Steel Slag Item Preview remove-circle Share or Embed This Item. The use of steel slag in these cementing systems results in some advantages over conventional cements. Based on laboratory test results, an 8 % optimal stabilization of the A-7-6 soil with steel slag satisfactorily meets the Federal Republic of Nigerian General Specifications (Roads and Bridges) requirement for subgrade materials. Expansive soil, Improving, Steel slag, Strength, Swelling. succinctly presented, and the major outcomes of physicochemical effects on soil properties are discussed in detail. To enhance general understanding of the physical and chemical characteristics of this material, slag samples from 58 active mills with blast furnaces, basic oxygen furnaces, and/or electric arc furnaces were examined. moisture content and unconfined compressive strength. Soil + 10% Steel slag content Fig. This review seeks to collate the findings from the literature to express the variability in material properties and to attempt to explain the source(s) of the variability. This study profiles the major and minor constituents of slag from each furnace type and reports the leachability of metals from slag under neutral and acidic conditions. Four different percentages (0, 50, 75 and 100%) of SSA were used, and the proposed mix designs for HMA were conducted in accordance with Marshall mix design. waste material may be introduced in the soil to modify the soil or reduce its swelling potential. After curing the mixed soil, the change in soil characteristics were tested through Atterberg limits, compaction, unconfined compressive strength (UCS) and CBR tests. BOF slag and soil or BOF and Class-C fly ash could be explored in the context of embankment construction projects. Fly ash and Steel slag are blended with unmodified soil in varying percentages to obtain the optimum percentage of admixture required for the soil stabilization. The batch studies confirmed that the mixture of limestone and steel refining slag was suitable for stabilization of metals in contaminated soil. The dry soil mixed with each percent of steel slag then subjected to testing. to improve load bearing capacity of soil. The samples were prepared by mixing the percentage of steel slag powder and expansive soil as 5%, 10%, 15%, 20%, 25% and 30% by the dry weight. The geotechnical properties, shearing strength characteristics, and dynamic properties of stabilized soil have been studied. At 30% steel slag, the reduction in plasticity index is about 75 %. The uses of byproducts such as blastfurnace slag and steel slag [electric arc furnace slag and basic oxygen steel (BOS) slag, and ground granulated blastfurnace slag] have long been established in a number of applications in the civil engineering industry. The It is concluded that the steel slag can be considered reasonable alternative source of aggregate for concrete asphalt mixture production. 230-236, 2004. The UCS of the soil is 147 kPa in the maximum density and is reaching to 267, 417 and 456 kPa by adding 30% slag and 2, 4 and 6% lime, respectively. The accumulation of steel slag not only occupies a huge area of land, but it also pollutes the surface water as well as groundwater. All these methods fall into two broad categories (FM 5-410) namely; - mechanical stabilization Under this category, soil stabilization achieved through physical process can be by altering the physical nature of native soil … Steel slag is a by-product of the steel industry and can be used potentially as aggregate in asphalt mixture. In 2006, steel slag generation was estimated to be in 10-15 million metric ton (Mt) range in the U.S. and approximately 15 to 40% of the total steel slag output was not utilized. 3, 6, and 9% with different amount of fly ash i.e 3%, 6%, 9% and 12% were used to stabilize the soft soil. University of Khartoum, Faculty of Engineering, Department of Civil Engineering Sudan, M.Sc. 683-688, 2015. Green, C. Avent, R. D. Bigham, M. Connolly, B. Lee, T. O. Shepker, Clayey soil also affects the design and construction of the pavement, resulting in higher cost of construction and early failure of pavement. The soil samples are tested by compaction test, unconfined compression test and CBR. The chemical composition and cooling of molten steel slag have a great effect on the physical and chemical properties of solidified steel slag. 16, pp. Implementation projects can help facilitate the use of steel slag in routine projects by INDOT engineers. Soil Stabilisation Using Ground Granulated Blast Furnace Slag A soft soil has significant problems, most of all poor shear strengths and high compressibility. A series of laboratory experiments including consistency limits, free swell, compaction, and shear strength tests were performed to investigate the, Steel slag is a waste material generated from steel industry. Lime to soil ratios of 3, 4 and 5% were used. 15%, 20% and 30%). This paper provides experimental insights on the modification of a soil using electric arc furnace (EAF) steel slag, which is lim-itedly used as a construction material because of its volumetric instability. Utilization of industrial waste materials in the improvement of problematic soils is a cost efficient and environmental friendly method. A suite of tests is proposed to better assess a given SFS stock for potential use in bound applications; at a minimum, the SFS should be evaluated for free CaO content, expansion potential, mineralogical composition, cementitious composite mechanical properties, and chemical composition with secondary tests, including cementitious composite durability properties, microstructural characterization, and free MgO content. National Slag Association (NSA) Environmental Science& Technology, "Steel slag product information." its For this purpose, soil was mixed with 10, 20 and 30% slag and 2, 4 and 6% hydrated lime. Effect of Steel Slag on Maximum Dry Density (MDD). Values of the pavement, resulting in higher cost of construction and Architectural.. Khuzestan steel plant makes enormous amount of GBS with fly ash + 6 % GBS soil by adding steel slag! 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