Stabilization of desert sands using municipal solid waste incinerator ash

Abstract

This paper presents experimental results on the use of incinerator ash in stabilizing desert sands for possible use in geotechnical engineering applications. The incinerator ash was added in percentages of 2, 4, 8, 10 and 12%, by dry weight of sand. Laboratory tests such as compaction, unconfined compression, shear box and hydraulic conductivity were performed to measure the engineering characteristics of the stabilized material. The results showed substantial improvements in unconfined compressive strength and shear strength parameters (c and u). Thus, incinerator ash can be used to improve the shear strength characteristics of desert sands. The permeability of the sand-incinerator ash mixture was relatively low.

Improvement of geotechnical properties of silty sand soils using natural pozzolan and lime

“…The results of experiment showed that as the amount of lime and fly ash is increased, there is an apparent reduction in maximum dry density, free swell and swelling capacity under 50 kPa pressure, and a corresponding increase in the percentage of coarse particles, optimum moisture content and CBR value. Mohamedzein et al [13] presented that the engineering properties of the desert sands can be improved significantly by the addition of incinerator ash. Saltan and Findik [19] used the pumice of the Isparta-Karakaya as stabilization material in the subbase layer and showed that pumice can be used as subbase material of highway and the stabilization material when building highway and every kind of road.…”

Uses of Sand Dunes as Building Materials

“…Recent studies have been directed towards examining the engineering properties of aeolian sands and investigating the ability of using them in construction [6][7][8][9].In the last years, substantial research has been directed to examine different types of additives and their potentiality as stabilizing agents for aeolian sands. Different methods of stabilization have been reported in the literature including the use of cement [10][11][12][13], cement kiln dust [14][15][16][17], bentonite and lime [18][19], bitumen emulsions [20][21],polymer emulsions [22][23][24][25], polypropylene fibers [26][27] and even, waste [28][29][30] Other researchers have accumulated the results of field and laboratory analyses to evaluate dune sands with respect to their use as fine aggregates in cement mortar or concrete, concluding that their use in civil engineering is viable [31][32][33][34][35].…”

The Potential of Lime and Grand Granulated Blast Furnace Slag (GGBFS) Mixture for Stabilisation of Desert Silty Sands

“…Desert sands are usually fine-grained and poorly graded materials with small amounts of silt [1]. Desert sands are not suitable for support of structures and roads, because they are loose and vulnerable to co llapse upon wetting [2].…”

“…There are several methods for improving the strength of so ils an d o n e o f th e mo st effect iv e meth ods is so il stabilisation. Various methods of soil stabilisation, such as, use of cement [3,4,5,1], cement-by-pass dust [6,7,5], bentonite [8], coal fly ash [9,10,11], asphalt [12], and lime [13], re-enfo rcement of sand by fibres are reported [14,15,11].…”

“…Incineration of MunicipalSo lid Waste (MSW) is a common practice to reduce the volume of the waste to be disposed in a landfill [1].Regarding to existence of numerous iron and steel smelting factories in Iran, one of the materials which incineration process produces are different kinds of slag like (GGBFS) that can fu rther be utilized in construction activities. Blast Furnace Slag (BFS) is a non-metallic co-product, produced in the process of iron and steel production.…”