Stabilisation physico-chimique des sols gonflants (sable de dune + sel)

Lamara, M.; Gueddouda, Mohamed Kamel; Benabed, B.

doi:10.1051/geotech/2006115025

Cited by 8 publications

(3 citation statements)

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“…The treatment studies carried out on some expansive soils confirm, they also, the action of cement and lime on their plasticity and swelling characteristics [19][20][21]23,[26][27][28][29][30][31][32]. Other treatment products (dune sand, salt, fly ash, bitumen, rice husk ash, stone dust, or their combinations) were used to stabilize the swelling soils and other problematic soils [5,[33][34][35][36][37][38][39][40][41][42][43][44]. The obtained test results show a certain improvement of geotechnical properties of the studied soils, but the effectiveness of the tested treatment products is not yet clearly established on the scale of the practice.…”

Section: Introductionmentioning

confidence: 96%

Stabilization of an expansive overconsolidated clay using hydraulic binders

Mahamedi

Khemissa

2015

HBRC Journal

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Urban areas of the wilaya of M'sila in Algeria nowadays experience a considerable development because of an unceasingly increasing demography, from where its extension toward virgin zones is often less favorable than those already urbanized. This wilaya is located in a zone classified as semi-arid, whose geology comprises clayey formations characterized by a high variation of volume when the conditions of their equilibrium are modified (natural climatic phenomena due to a prolonged dryness, human activity by modification of the ground water level because of excessive pumping, configuration of constructions in their environment). This paper presents and analyzes the results of a series of laboratory tests (identification, compaction, penetration and direct shear tests) performed on an expansive overconsolidated clay obtained from an urban site situated in Sidi-Hadjre`s city (wilaya of M'sila, Algeria), where significant damages frequently appear in the road infrastructures and in the light structures. Test results obtained show that the geotechnical parameteric values deduced from these tests are concordant and confirm the bearing capacity improvement of this natural clay treated with hydraulic binders (composed Portland cement and extinct lime) and compacted under the optimum Proctor conditions, which is translated by a significant increase in soil strength and its durability.

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Section: Introductionmentioning

confidence: 96%

Stabilization of an expansive overconsolidated clay using hydraulic binders

Mahamedi

Khemissa

2015

HBRC Journal

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“…Some research works have shown that the addition of inert materials to swelling soil can be a method of stabilizing these soils; [8,[15][16][17][18][19][20][21][22][23]. These works led to consider that the addition of inert materials is a promising technique for stabilizing such soils.…”

Section: Introductionmentioning

confidence: 99%

SAND: An Additive for Stabilzation of Swelling Clay Soils

Louafi¹,

Bahar²

2012

IJG

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An experimental program carried out in this study seeks to understand the physical mechanisms of stabilization of an expansive soil by adding an inert material (sand) at various forms; mixing and intercalation layers of sand. The first aim of the study is to analyze the effect of stabilization on the variation of soil consistency. The results show a marked improvement in soil consistency. Then a study of the effect of the additives on the variation of the swelling in order to solve the lifting structures caused by this phenomenon is carried out. It can be seen that the addition of sand is capable of reducing the swelling action. We complete the study using an ultrasonic device, measuring the propagation velocities of ultrasonic pulse through the tested clay samples. This shows a change occurring in the porosity of the clay when sand is added to it. As a result some interesting conclusions concerning the expansive soil-material amendment are drawn

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“…Numerous researchers have applied inert materials to soils, as a method of stabilizing them (Bengraa et al, 2005;Kaoua et al, 1994;Lamara et al, 2005;Louafi et al, 2011). Though the research works have shown that the addition of inert materials is a promising technique for stabilizing such soils, there are still many open questions on the behaviour of an amended soil that require answers from the engineers' community.…”

Section: Introductionmentioning

confidence: 99%