Authors: Hossain, K M.A.; Lachemi, M; Easa, S

Source: Canadian Journal of Civil Engineering, Volume 33, Number 11, November 2006 , pp. 1455-1458(4)

Publisher: NRC Research Press

Abstract:

Clayey soils are stabilized with various percentages of volcanic ash (VA), finely ground natural lime (NL), Portland cement, and their combinations. The influence of stabilizers and their combinations is evaluated through standard Proctor compaction, unconfined compressive strength, splitting tensile strength, modulus of elasticity, and California bearing ratio (CBR) tests. The durability of stabilized soil mixtures is judged based on drying shrinkage and the influence of water immersion on strength. Correlations between compressive strength, modulus of elasticity, and CBR are also established. Stabilized soil mixtures can be used in various constructions, including road pavements and low-cost housing.Key words: soil stabilization, volcanic ash, natural lime, mechanical properties, durability.

Les sols argileux sont stabilisés en utilisant différents pourcentages de cendre volcanique, de la chaux naturelle finement broyée, du ciment Portland et diverses combinaisons de ces éléments. L'influence des stabilisants et de leurs combinaisons est évaluée en utilisant le test standard de compactage Proctor, la résistance en compression non confinée, la résistance à la traction par fendage, le module d'élasticité et l'essai de portance de Californie (« CBR »). La durabilité des mélanges de sols stabilisés est jugée en se basant sur le retrait de séchage et l'influence de l'immersion dans l'eau sur la résistance. Les corrélations entre la résistance à la compression, le module d'élasticité et le « CBR » sont également déterminées. Les mélanges de sols stabilisés peuvent être utilisés entre autres dans divers types de construction incluant les couches de roulement des routes et les habitations à loyer modéré.Mots clés : stabilisation des sols, cendre volcanique, chaux naturelle, propriétés mécaniques, durabilité.[Traduit par la Rédaction]

Document Type: Research article

Publication date: 2006-11-01

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• Published since 1974, this monthly publication is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structure engineering, construction engineering, engineering mechanics, and engineering materials, and a history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academe. New developments in engineering design and construction are also featured.
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