Dr Grainne El Mountassir

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Civil and Environmental Engineering

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Personal statement

Dr El Mountassir is a Senior Lecturer in Geotechnical Engineering and Director for Research in the Department of Civil and Environmental Engineering.

Her research focuses on developing novel technologies using biological and biochemical processes that can alter the hydraulic and mechanical behaviour of soils and rocks. Over the last ten year the team at Strathclyde have been developing microbially induced calcite precipitation as a technique for rock grouting, soil stabiliation, well sealing and concrete repair. More recently she has been leading investigations into the potential use of fungi and their hyphal networks in ground improvement applications.

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Publications

Meter-scale MICP improvement of medium graded very gravelly sands : lab measurement, transport modelling, mechanical and microstructural analysis
Sang Guijie, Lunn Rebecca J, El Mountassir Grainne, Minto James M
Engineering Geology Vol 324 (2023)
https://doi.org/10.1016/j.enggeo.2023.107275
Transport and fate of ureolytic Sporosarcina pasteurii in saturated sand columns: experiments and modelling
Sang Guijie, Lunn Rebecca J, El Mountassir Grainne, Minto James M
Transport in Porous Media Vol 149, pp. 599-624 (2023)
https://doi.org/10.1007/s11242-023-01973-x
Treatment of fractured concrete via microbially induced carbonate precipitation : from micro-scale characteristics to macro-scale behaviour
Turner Ronald, Castro Gloria M, Minto James, El Mountassir Grainne, Lunn Rebecca J
Construction and Building Materials Vol 384 (2023)
https://doi.org/10.1016/j.conbuildmat.2023.131467
Colloidal silica as a grouting material for the temporary encapsulation of heat-generating radioactive waste during removal and transport operations : a proof of concept
Pagano Arianna Gea, El Mountassir Gráinne, Lunn Rebecca Jane
Frontiers in Energy Research Vol 11 (2023)
https://doi.org/10.3389/fenrg.2023.1156301
Microbially induced calcite precipitation for sealing anhydrite fractures with gouges
Sang Guijie, Lunn Rebecca, Minto James M, El Mountassir Grainne
56th US Rock mechanics/Geomechanics Symposium (2022)
https://doi.org/10.56952/ARMA-2022-0277
Hydraulic behaviour of fungal treated sand
Salifu Emmanuel, El Mountassir Graínne, Minto James, Tarantino Alessandro
Geomechanics for Energy and the Environment Vol 30 (2022)
https://doi.org/10.1016/j.gete.2021.100258

More publications

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Teaching

I teach CL217 Soil mechanics and the Graduate Apprenticship module EO206 (Soils & Water 2), both to second year students.

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Research Interests

My research is largely experimental and focuses on understanding the hydraulic and mechanical behaviour of soils and rocks. I am particularly interested in the potential use of biological processes in geotechnical engineering. I am currently developing novel grouting technologies including microbially induced calcite precipitation as a technique for sealing fine aperture fractures and silica sol as a low viscosity grout. I am also investigating the possible deployment of fungi within ground engineering applications.

Professional Activities

Applied Clay Science (Journal)
Peer reviewer
8/2022
Invited speaker Cheltenham Science Festival 2022
Recipient
10/6/2022
Calcite Biomineralisation for the Repair of Damaged Concrete
Contributor
20/9/2021
Internal Examiner PhD Viva
Examiner
9/2021
Invited talk at Dundee Root Medal Workshop 2021
Speaker
5/2021
Invited talk at Nature-Inspire solutions for the Built Environment
Speaker
2/2021

More professional activities

Projects

iPACT_MICP for repair and protection of coastal infrastructure (v2)
El Mountassir, Grainne (Principal Investigator)
01-Jan-2023 - 31-Jan-2024
iPACT- Bio-physical interactions in managing coastal dynamics
El Mountassir, Grainne (Principal Investigator)
01-Jan-2023 - 31-Jan-2024
DTP 2224 University of Strathclyde | Hughes-Buchanan, Adam
El Mountassir, Grainne (Principal Investigator) Ward, Andrew (Co-investigator) Hughes-Buchanan, Adam (Research Co-investigator)
01-Jan-2022 - 01-Jan-2026
UKRI FLF - Soil-mycelia systems for slope stabilisation
El Mountassir, Grainne (Principal Investigator)
01-Jan-2021 - 30-Jan-2025
Doctoral Training Partnership 2020-2021 University of Strathclyde | Eriksen, Jason
El Mountassir, Grainne (Principal Investigator) Lunn, Rebecca (Co-investigator) Eriksen, Jason (Research Co-investigator)
01-Jan-2021 - 01-Jan-2024
Mobile X-ray/MRI/PET cells to image 4D fluid flow in porous media
Minto, James (Principal Investigator) Pagano, Arianna Gea (Co-investigator) El Mountassir, Grainne (Co-investigator)
This is a modular and configurable system that enables injection of liquids through porous media (such as sand packs, glass bead packs, and cylindrical rock cores), is compatible with X-ray, MRI and PET imaging, and is suitable for reactive flow experiments e.g. mineral precipitation, dissolution, and biofilm growth.

The main components of this equipment are:
1) Two dual piston isocratic injection pumps (Watrex DeltaChrom P102). Flows from 0.01 to 10 mL/min, 10 MPa max pressure, PEEK flow path for chemical compatability, no limit of injection volume, with pulse dampener.
2) Dual channel syringe pump (Chemyx Fusion 4000) offering pulseless and programmable injection/extraction at extremely low flow rates, volume limited by syringe volume, pressure limited by syringe type.
3) PEEK HPLC columns of various lengths and diameters (30mm length, 4.6mm internal diameter, 100 x 4.6, 250 x 4.6, 50 x 7.5). 10 MPa max pressure. Can be packed with loose sand or glass beads and imaged with X-ray/MRI/PET, but more suitable for X-rays due to their small size.
4) In-house designed and built 1" (25.4 mm) rock core holder. Max pressure 4 MPa at 25 °C. Can be imaged with X-ray/MRI/PET.
5) Digital pressure transducers continuously recording inlet pressure, outlet pressure, and confining fluid pressure (for rock core holders) allowing measurement of permeability.
6) Range of fittings, tubing, backpressure regulators, and sample injection options.
7) Computer for recording data and controlling pumps.
8) Mobile system intended to be moved to different imaging facilities.
01-Jan-2018

More projects

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Contact

Dr Grainne El Mountassir
Reader
Civil and Environmental Engineering

Email: grainne.elmountassir@strath.ac.uk
Tel: 548 3252