The behaviour of soil stabilised with nanoparticles: an extensive review of the present status and its applications

Krishnan, J. Murali; Shukla, Shruti

doi:10.1007/s12517-019-4595-6

Cited by 30 publications

(3 citation statements)

References 89 publications

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“…Soil stabilization, which involves improving shear strength, increasing stiffness and decreasing plasticity, as well as reducing volumetric change [39], They are commonly treated with chemical additives such as the application of lime, cement or industrial waste such as fly ash, although their results are positive [40], they carry the disadvantage of being highly polluting products, which is why they are currently looking for more environmentally friendly materials. [41]. For this reason, studies are currently being carried out on the application of nanomaterials to improve problem soils.…”

Section: Introductionmentioning

confidence: 99%

The use of Nanomaterials in the construction sector: A literary review

Pérez

Gonzales-Pérez

Pardo-Muñoz

2022

DYNA

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Currently, one of the methods to improve the properties of materials in construction is the use of nanomaterials. The objective of this paper is to review the technological advances in the application of nanomaterials, which improve mechanical properties when used in concrete, soils, pavements, among others. A total of 86 articles corresponding to the Scopus, Ebsco, Science Direc and IOP Science databases were reviewed. The studies show that with the application of nanomaterials, positive results are obtained in the improvement of the compressive and flexural strength of concrete, improvement in the stabilization of soils and in asphalt, avoiding the formation of grooves and cracks. The studies conclude that the applicability of nanomaterials in the construction industry is a good alternative from a sustainable point of view, in order to reduce the indiscriminate use of non-renewable resources

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Section: Introductionmentioning

confidence: 99%

The use of Nanomaterials in the construction sector: A literary review

Pérez

Gonzales-Pérez

Pardo-Muñoz

2022

DYNA

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“…In the field of geotechnical engineering, colloidal silica, bentonite, laponite and carbon nanotube are nanomaterials that have been recently applied to soil improvement [6]. Nanomaterials can be properly added to different kinds of soil to modify and improve some physical/mechanical properties of the natural material [6][7][8][9]. Significant changes in plasticity characteristics and hydraulic conductivity are induced in cohesive soils by the addition of nano-clay [10][11][12], and a significant decrease in the hydraulic conductivity can be achieved in sandy soils by grouting them with nano-silica solutions [13,14].…”

Section: Introductionmentioning

confidence: 99%

Effects of Colloidal Silica Grouting on Geotechnical Properties of Liquefiable Soils: A Review

2021

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Colloidal silica (CS) is a kind of nanomaterial used in soil/rock grouting techniques in different branches of civil engineering. Many studies have recently been performed to investigate the potential of CS in improving the mechanical behavior of cohesionless soils and mitigating the risk of seismic liquefaction in urbanized areas. CS grout is chemically and biologically inert and, when injected into a subsoil, it can form a silica gel and stabilize the desired soil layer, thus representing an attractive, environmentally friendly alternative to standard chemical grouting techniques. This paper firstly describes the characteristics of CS grout, the gelation process and the main features of the behavior of the pure gelled material. The grout delivery mechanisms through porous media are then explained, pointing out the crucial issues for practical application of CS grouting. All the grouting-induced effects on the soil behavior, which have been investigated by laboratory tests on small-sized soil elements, are reviewed, including the modifications to soil strength and stiffness under both static and seismic loading conditions, to soil compressibility and hydraulic conductivity. Published results from physical model tests and in situ applications are also presented. Finally, some aspects related to the mechanism of soil improvement are discussed. A critical discussion of each topic is presented, drawing particular attention to the controversial or not yet fully examined aspects to which future research on colloidal silica grouting should be directed.

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“…In addition, in recent years, an alternative to conventional stabilising products and wastes and by-products has emerged: nanomaterials. Nanomaterials are particles with a typical size of between 1 and 100 nm, with a very high specific surface area, which implies a very high reactivity [24], achieving soil improvements with very low dosages. Nanomaterials commonly used in soil stabilisation are composed of simple oxides, such as SiO 2 , TiO 2 or CaCO 3 , or carbon nanotubes [25,26].…”

Section: Introductionmentioning

confidence: 99%

Feasibility of Using Nanosilanes in a New Hybrid Stabilised Soil Solution in Rural and Low-Volume Roads

et al. 2021

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The application of new materials for soil stabilisation is a growing field of study in recent years. In this work, the effect of two types of silica-based nanomaterials combined with binders (quicklime and cement) are studied to stabilise soils and form structural layers for rural and low volume roads. The physical and chemical properties of the materials have been determined, as well as the mechanical behaviour of the stabilised soil. Three hybrid stabilised soil sections have been designed using a multilayer elastic model, executed at full scale and measuring the evolution of their properties in the medium to short term. The results show that the application of silica-based nanomaterials and two types of binders on the tread layers provide high structural stability and good behaviour of the sections.

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The behaviour of soil stabilised with nanoparticles: an extensive review of the present status and its applications

Cited by 30 publications

References 89 publications

The use of Nanomaterials in the construction sector: A literary review

The use of Nanomaterials in the construction sector: A literary review

Effects of Colloidal Silica Grouting on Geotechnical Properties of Liquefiable Soils: A Review

Feasibility of Using Nanosilanes in a New Hybrid Stabilised Soil Solution in Rural and Low-Volume Roads

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