Experimental Studies on Ettringite-Induced Heaving in Soils

Puppala, A. J.; Intharasombat, Napat; Vempati, R. K.

doi:10.1061/(asce)1090-0241(2005)131:3(325)

Cited by 171 publications

(47 citation statements)

References 12 publications

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“…Ettringite formation causes soil heave and cracking of pavement structures, and these problems lead to a reduction in stability and loss of bearing capacity (Hunter, 1988;Little et al, 2010;Mitchell and Dermatas, 1992;Puppala et al, 2005). Several studies on gypseous soils have shown that the onset of problems associated with these soils depends on the initial sulphate levels in soils prior to chemical stabilization (Adams et al, 2008;Hunter, 1988;Petry and Little, 1992).…”

Section: Introductionmentioning

confidence: 99%

Free swell potential of lime-treated gypseous soil

Aldaood

Bouasker

Al-Mukhtar

2014

Applied Clay Science

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Section: Introductionmentioning

confidence: 99%

Free swell potential of lime-treated gypseous soil

Aldaood

Bouasker

Al-Mukhtar

2014

Applied Clay Science

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“…2) prompting the dissolution of aluminosilicates into the pore solution (Eq. ) ions can be considered the candidate ions [Puppala, 2005 andLittle et al, 2010] for the formation of ettringite in cohesive soil and must be present for it to occur. The formation of ettringite during lime stabilisation of cohesive soils is shown in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

The role of ettringite in the deterioration of artificial lime stabilised soils: a microstructural study

Buttress

Grenfell

Airey

2013

Road Materials and Pavement Design

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ABSTRACT. The formation of ettringite has been defined as a major failure mechanism of lime stabilised cohesive soils. It can result in both disruptive volumetric changes and loss of mechanical strength. The mechanisms of its formation and the role it plays in deleterious processes are complex. This paper reports the dimensional and strength changes of a range of artificial lime stabilised cohesive soils subject to two swell test procedures: the UK linear CBR swell test (BS1924-2, BSI 1990) and the European accelerated swell test (EN13286-49, CEN 2007). The resulting microstructural composition was analysed using a combination of Scanning Electron Microscopy and Electron Dispersive X-ray Spectroscopy (SEM-EDX). The results are explained in terms of established theories of crystal formation and subsequent expansion mechanisms.

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“…The one-dimensional free swell test measures the amount of swelling in the vertical direction of a confined specimen [15]. Special oedometer cells were made, using materials which were entirely non-reactive to both acid and alkali.…”

Section: One-dimensional Free Swell Testmentioning

confidence: 99%