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首页> 外文期刊>Geomechanics and geoengineering: An international journal >Drained behaviour of artificially cemented dune aeolian sand
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Drained behaviour of artificially cemented dune aeolian sand

机译：Drained behaviour of artificially cemented dune aeolian sand

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ABSTRACT Mixing cement and soil is a?traditional technique used to improve their mechanical properties. Other studies proposed a?rational dosage methodology for soil-cement?mixtures. This method is based on the void-cement?ratio and aimed at obtaining a?particular strength level. The present study evaluated the validity of the void-cement?ratio?(η/Civ)?and analysed the stress?– strain?– strength behaviour of aeolian dune sand from Natal, Brazil, mixed with cement. Isotropically consolidated drained triaxial compression tests (CID-C) were conducted with moulded samples containing 0.0, 2.5, 5.0 and 7.5% cement by weight of dry soil. Void ratios corresponded to three conditions of relative density: loose, medium and dense, with confining stresses of 50, 100, 200 and 300 kPa. The effect of void ratio, cement content and void-cement?ratio on the stress-strain-strength?behaviour of the mixtures was determined. The results showed that the void-cement?ratio is an appropriate parameter to assess the effective strength of the cement-sand?mixture studied.

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