Influence of using rice husk ash in soil stabilization method with lime

Choobbasti, Asskar Janalizadeh; Ghodrat, H.; Vahdatirad, Mohammadjavad; Firouzian, S.; Barari, Amin; Torabi, M.; Bagherian, A.

doi:10.1007/s11707-010-0138-x

Cited by 61 publications

(28 citation statements)

References 8 publications

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“…It is observed from the treatment of VPS and VS (Figures 3 and 4) that the MDD decreases as the RHA and lime contents increase, which is in agreement with findings in [6,7,14,16]. However, it can be seen from Figure 4 that the DUW decreases more with the increasing of lime content than that of the RHA.…”

Section: Rice -Technology and Productionsupporting

confidence: 86%

“…The RHA contains around 90% of silica [4,5], which is the highest concentration of all plant residues [2]. Based upon this, RHA has been used to improve properties of soil either when added alone or when mixed with a hydraulic activator such as the cement and lime [1,[6][7][8][11][12][13][14][15][16]. Soil stabilization by the addition of RHA and lime is particularly attractive for road pavements because it leads to cheaper construction and lesser disposal costs, reduces environmental damage and preserves the most highly qualified materials for priority uses [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Soil Stabilization with Rice Husk Ash

Behak¹

2017

Rice - Technology and Production

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Rice husk ash (RHA) is a by-product of rice milling. Its use as a soil stabilizer is an alternative to the final disposition with environmental benefit. Because RHA is not self-cementitious, a hydraulic binder such a lime must be added to form cements to improve the soil strength. Researches on stabilization by applying RHA and lime combinations were conducted in sandy soils. RHA of no-controlled rice husk incineration in conventional ovens and of laboratory burning at controlled temperatures were used. The alkaline reactivity of the RHA was studied through X-ray diffractometry analysis and loss on ignition tests. The formation of cementitious compounds was observed in mixtures of soil with different RHA and lime contents. Unconfined compression strength tests were conducted on soils treated with RHA and lime. Results show strength improvements for all RHA and lime contents and time periods studied, and all materials produced can be defined as modified rather than stabilized. Improvement of sandy soils with RHA is an alternative to the final disposition with environmental, social and economic benefits.

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Section: Rice -Technology and Productionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Soil Stabilization with Rice Husk Ash

Behak¹

2017

Rice - Technology and Production

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“…These by-products and their combination with cement and lime have been used as soil stabilizers such as limestone (Okagbue and Yakubu, 2000), fly ash (Prabakar et al, 2004;Al Rawas et al, 2005;Goswami and Singh, 2005;Parsons and Kneebone, 2005;Sezer et al, 2006;Hossain et al, 2007;Mu'Azu, 2007), rice husk ash (Rahman, 1986;Muntohar and Hantoro, 2000;Basha et al, 2003;Muntohar, 2005;Senol et al, 2006;Al Hassan and Mustapha, 2007;Choobbasti et al, 2010), silica fume (Bagherpour and Choobbasti, 2003;Kalkan, 2009) and cement kiln dust (Miller and Azad, 2000).…”

Section: Introductionmentioning

confidence: 99%

Influence of natural pozzolana and lime additives on the temporal variation of soil compaction and shear strength

2011

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Soil stabilization has been practiced for quite some time by adding mixtures, such as cement, lime and fly ash. The additives of lime (L), natural pozzolana (NP) or a combination of both were investigated here on the impact on the temporal variation of geotechnical characteristics of two cohesive soils. Lime and natural pozzolana were added at the content of 0-8% and 0-20%, respectively. The soil specimens were cured for 1, 7, 28 and 90 days and then tested for shear strength. Our data show that a combination of lime with natural pozzolana causes the increase in the maximum dry density but the decrease in the optimum moisture content in the gray soil, and vice verse in the red soil. The shear stress of both cohesive soils stabilized with lime or with the combination of lime and natural pozzolana was found to increase with time. The cohesion and the internal friction angle in limeadded samples were demonstrated to increase with time. The combination of lime with natural pozzolana exhibits a significant effect on the enhancement of the cohesion and the internal friction angle at later stages. The lime-natural pozzolana combination appears to produce higher shear parameters than lime or natural pozzolana used alone.

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Section: Introductionmentioning

confidence: 99%

“…Soils stabilization is a technique that requires the use of hydraulic binders alone or in combination with other mineral additives such as fly ash. Extensive studies have been carried out to study the different effects produced by the use of cement alone or in combination with L [2-4], rice husk ash, [5][6][7] and fly ash [8, 9] on physico-mechanical properties of soils.In the absence of sulphates, the reduction in the repulsion forces between the clay particles (due to the L addition) creates a bond between them and forms flocks. This change caused by L reduces the plasticity index and the maximum dry density of the stabilized soil but increases their optimum moisture content [10].…”

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confidence: 99%

Effect of Calcium Sulphate on the Geotechnical Properties of Stabilized Clayey Soils

Gadouri

Harichane

Ghrici

2016

Period. Polytech. Civil Eng.

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An experimental investigation was undertaken to study the effect of calcium sulphate (CaSO 4 .2H 2 O) on the behaviour of the grey clay (GS) and red clay (RS) soils stabilized with lime (L), natural pozzolana (NP) and their combination (L-NP Keywords Clayey soil, lime (L), natural pozzolana (NP), calcium sulphate, plasticity index (PI), unconfined compressive strength (UCS) IntroductionCivil engineering projects located in areas with inappropriate soils is one of the most frequent problems in the world. Soil stabilization technique has been practiced for several years with the main aim to render the soils capable of meeting the requirements of the specific engineering projects [1]. Hydraulic binders (cement and L) were used as stabilizers in various civil engineering fields. Soils stabilization is a technique that requires the use of hydraulic binders alone or in combination with other mineral additives such as fly ash. Extensive studies have been carried out to study the different effects produced by the use of cement alone or in combination with L [2-4], rice husk ash, [5][6][7] and fly ash [8, 9] on physico-mechanical properties of soils.In the absence of sulphates, the reduction in the repulsion forces between the clay particles (due to the L addition) creates a bond between them and forms flocks. This change caused by L reduces the plasticity index and the maximum dry density of the stabilized soil but increases their optimum moisture content [10]. At the later stage, the increase in the concentration of hydroxyl (OH -) from L raises the pH of the soil, and causes the dissolution of alumina and silica which interact with calcium ions to form cementing products such as calcium silicate hydrates (CSH) and calcium aluminate hydrates (CAH). The formation of these compounds is responsible on the increase in unconfined compressive strength (UCS) values of the stabilized soil [11] and their shear strength values [12].However, in the presence of sulphates, the sulphate ions react with calcium, hydroxyl and aluminium compounds to form expansive phases such as ettringite. Furthermore, the magnitude of damage caused by the ettringite depends on the soil nature, the type and the content of additives [3] and the concentration and the type of cation associated with the sulphate anion [13]. Indeed, the effects caused by the presence of different types of sulphates on the geotechnical properties of soils stabilized with additives have been investigated by several researchers [13][14][15][16][17][18][19].

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Influence of using rice husk ash in soil stabilization method with lime

Cited by 61 publications

References 8 publications

Soil Stabilization with Rice Husk Ash

Soil Stabilization with Rice Husk Ash

Influence of natural pozzolana and lime additives on the temporal variation of soil compaction and shear strength

Effect of Calcium Sulphate on the Geotechnical Properties of Stabilized Clayey Soils

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