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Dimitrios Terzis

Publications associées (21)

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Cell-free soil bio-cementation with strength, dilatancy and fabric characterization

Lyesse Laloui, Dimitrios Terzis

A multi-disciplinary approach is adopted in the present work towards investigating bio-cemented geo-materials which extends from sample preparation, to microstructural inspection and mechanical behaviour characterization. We suggest a new way to induce “ce ...

2019

Research and practice in the broader fields of civil and geotechnical engineering had long ignored the presence of living microorganisms in the subsurface and the way it impacts conventional practices. In the last 10 years, the term “microbial induced calc ...

2019

Le biomimétisme (2/5): un biociment éco-responsable grâce au génie d’une bactérie

Dimitrios Terzis

L’entrevue retourne sur la genèse de la jeune startup vaudoise, MeduSoil, avec l’un de ses créateurs, Dr. Dimitrios Terzis. Ce dernier jette brièvement les bases de cette technique révolutionnaire, qui reste toutefois assez simple et pratique, et vise prin ...

2019

We introduce the application of microbial-induced calcite precipitation via the ureolytic soil bacterium Sporosarcina Pasteurii in freeze-dried form, as a means of enhancing overall MICP efficiency and reproducibility for geotechnical engineering applicati ...

2018

GEOTEXTILE

Lyesse Laloui, Dimitrios Terzis

The present invention concerns a geosynthetic element (1) for a geotechnical engineering application. The geosynthetic element (1) comprises: bacteria carriers (3) for carrying bacteria arranged to be propagated from the geosynthetic element (1) to a surro ...

2018

On the Application of Microbially Induced Calcite Precipitation for Soils: A Multiscale Study

Lyesse Laloui, Dimitrios Terzis

Two laboratory experiments are used to provide preliminary evidence towards upscaling the microbially induced calcite precipitation (MICP) for soils. Fine sand is packed and subsequently subjected to MICP treatment in 11-liter cylindrical tanks. Different ...

Springer, Cham2017

The study presents a comprehensive characterization of the fabric of bio-improved soils by introducing an image based quantitative analysis of the crystalline bond lattice, as a means of better understanding and interpreting the observed mechanical respons ...

ISSMGE Publications2017

Kinetics, Mechanics and Micro-structure of Bio-cemented Soils

Dimitrios Terzis

The quest for novel, performant materials and methods in the engineering practice is driven nowadays by the need to offer solutions to complex problems by coupling technical innovation with environmental responsibility. Such problems emerge in the geo-tech ...

EPFL2017

Effect of Microbially Induced Calcite Precipitation on soil thermal conductivity

Lyesse Laloui, Dimitrios Terzis, Sara Venuleo

Energy piles efficiency is strongly affected by soil saturation conditions: low water contents considerably decrease their performance thus limiting the possibility to extend their application in arid environments. This paper investigates the MICP (Microbi ...

Ice Publishing2016

Fabric characteristics and mechanical response to bio-improved sand to various treatment conditions

Lyesse Laloui, Rizlan Bernier-Latmani, Dimitrios Terzis

Investigating the enhanced mechanical response of treated soils through microbially induced calcite precipitation requires extensive understanding of the pore structure. Depending on the applied treatment conditions, the resulted material exhibits distinct ...

Ice Publishing2016