| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Diambra, Andrea
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Lateral bearing factors and elastic stiffness factors for robotic CPT p-y module in undrained claycitations
- 2022Axial shear friction of polypropylene pipes against granular beds
- 2021Relationship between texture of polypropylene coatings and interface friction for sand at low stress levelscitations
- 2021Relationship between texture of polypropylene coatings and interface friction for sand at low stress levelscitations
- 2021Stiffness of granular soils under long-term multiaxial cyclic loadingcitations
- 20213D FE-informed laboratory soil testing for the design of offshore wind turbine monopilescitations
- 2021Stiffness of artificially cemented sands:insight on characterisation through empirical power relationshipscitations
- 2021Stiffness of artificially cemented sandscitations
- 2020Small to large strain mechanical behaviour of an alluvium stabilised with low carbon secondary mineralscitations
- 2020Polypropylene pipe interface strength on marine sandy soils with varying coarse fractioncitations
- 2019Strength anisotropy of fibre-reinforced sands under multiaxial loadingcitations
- 2019Cyclic polypropylene pipeline coating interface strength with granular materials at low stress
- 2019Cyclic polypropylene pipeline coating interface strength with granular materials at low stress
- 2019Stiffness of lightly cemented sand under multiaxial loadingcitations
- 2019Stiffness of lightly cemented sand under multiaxial loadingcitations
- 2019Effect of orientation of principal stress axes on cyclic liquefaction potential of soils
- 2019Effect of orientation of principal stress axes on cyclic liquefaction potential of soils
- 2018Compacted Chalk Putty-Cement Blends:Mechanical Properties and Performancecitations
- 2018Compacted Chalk Putty-Cement Blendscitations
- 2018Stress and time-dependent properties of crushed chalkcitations
- 2018Time and stress dependent strength and stiffness of reconstituted chalkcitations
- 2017Particle soil crushing: passive detection and interpretation
- 2017Evolution of elastic properties of granular soils under very large of number of multiaxial stress cycles
- 2016Evolution of small strain stiffness of granular soils with a large number of small loading cycles in the 3-D multiaxial stress space
- 2016Small strain stiffness evolution of reconstituted medium density chalk
- 2010Static liquefaction of fibre reinforced sand under monotonic loadingcitations
Places of action
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article
Small to large strain mechanical behaviour of an alluvium stabilised with low carbon secondary minerals
Abstract
Deep dry soil mixing is a popular ground improvement technique used to strengthen soft compressible soils, with Portland cement being the most popular binder. However, its continued use is becoming less sustainable given the high CO2 emissions associated with its manufacture. Alkali-activated cements are considered to be viable low carbon alternative binders, which use industrial waste products such as blast furnace slag. This study focusses on the stabilisation of a potentially liquefiable soft alluvial soil using a dry granulated binder comprising sodium hydroxide-activated blast furnace slag (GGBS-NaOH). This binder has previously been demonstrated by the authors to have potential as a replacement for Portland cement due to its excellent engineering performance, positive contributions towards the circular economy, reducing energy usage and CO2 emissions in the construction sector. A detailed comparison in mechanical behaviour is presented between the soil in its reconstituted, undisturbed and cemented states after 28 days curing through the use of advanced monotonic triaxial testing techniques, including small strain measurements. Mechanical behaviour was specifically analysed regarding peak deviatoric strength, pore pressure response, stress – volumetric dilatancy, shear stiffness degradation over small to large strain ranges, critical state and failure surfaces. Using 7.5% GGBS-NaOH increased the stiffness and shear strength of the soil significantly, whereby the shear strains at which initial shear stiffness degrades is three times higher than the untreated undisturbed soil. As a result, larger amounts of dilation was observed during shearing of the material and resulted in an upward shift of the soil’s original critical state line due to the creation of an artificially cemented soil matrix through the precipitation of C-(N)-A-S-H gels.