Publications de Dimitrios Terzis

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Microbially induced calcium carbonate (CaCO3) precipitation (MICP) is one of the major sustainable alternatives to the artificial cementation of granular media. MICP consists of injecting the soil with bacterial- and calcium-rich solutions sequentially to ...

The fabrication of responsive soft materials that enable the controlled release of microbial induced calcium carbonate (CaCO3) precipitation (MICP) would be highly desirable for the creation of living materials that can be used, for example, as self-healin ...

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 ...

Bio-chemical processes have recently become the core of several studies in the geoengineering field, where the emphasis is placed on new and emerging applications. Microbially Induced Calcite Precipitation has been introduced as an alternative cementation ...

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 ...

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 ...

Microbially induced calcite precipitation (MICP) has long been the focus of material scientists, environmental microbiologists and civil engineers because of its potential to yield biosynthesized binders that can serve as alternatives to cement or resins. ...

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 ...

This paper reports recent advances in modelling MICP at the engineering scale, in particular with respect to the stress-strain-strength modelling of bio-cemented soils. A complete Bio-Chemo-Hydro-Mechanical (BCHM) model is presented. The BCH model is based ...

Bio-cementation through microbially induced calcite precipitation (MICP) has the potential to overcome several technical and environmental limitations of conventional cement-based soil improvement techniques. While a significant amount of research has been ...

The study presented herein adopts a new vision of the processes involved in carbonate mineralization induced by MICP from an electrochemical and crystal growth perspective. More precisely a specific line of focus refers to the species involved in the bio-c ...

The present study integrates direct electric currents into traditional calcium carbonate mineralization to investigate electrochemical interactions and the subsequent crystalline growth of CaCO3 bonds in sand. A specific line of focus refers to the effect ...

The present invention relates to a method for inducing ground consolidation. The method comprises providing a first chamber (7) in a first hole (3) in the ground (5), and a second chamber (7) in a second hole (3) in the ground (5), the first and second cha ...

Biogeotechnical research has inspired revolutionary ideas to claim the status of a distinctive branch of geotechnical engineering. Most notably, underground carbonate mineralization, most commonly referred to as microbially induced carbonate precipitation ...

Soil biocementation represents an emerging technique that has dominated the development of sustainable and innovative geotechnics during the past decade. Despite numerous studies focusing on peak strength behavior and the ensuing softening response, less i ...

In an attempt to go beyond the conventional laboratory experiments widely reported in literature around the emerging technique of soil bio-cementation, this work addresses key challenges related to its large-scale application. Precisely, a state-of-the-art ...

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 ...

The study describes a comprehensive methodology to evaluate X-Ray micro-computed tomography data from sand samples and to characterize their 3D microstructural properties. Fine and medium-grained sands are analyzed in their natural and bio-cemented states. ...

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 ...

A method for producing a carbonate-containing species-rich, nitrogen-containing species-free solution from a urea-rich solution is proposed. The method comprising the steps of: providing a first reservoir comprising a first mixture including urea and a cat ...

Dimitrios Terzis

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Microfluidic study in a meter-long reactive path reveals how the medium’s structural heterogeneity shapes MICP-induced biocementation

Controlling the calcium carbonate microstructure of engineered living building materials

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

Effect of treatment on the microstructural characteristics of bio-improved sand

3-D micro-architecture and mechanical response of soil cemented via microbial-induced calcite precipitation

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

Bacillus megaterium favours CO₂ mineralization into CaCO₃ over the ureolytic pathway

Effect of Microbially Induced Calcite Precipitation on soil thermal conductivity

A unified Bio-Chemo-Hydro-Mechanical formulation for soil improvement with microbially-induced calcite precipitation

A bio-chemo-hydro-mechanical model of transport, strength and deformation for bio-cementation applications

Benefits and drawbacks of applied direct currents for soil improvement via carbonate mineralization

Direct currents stimulate carbonate mineralization for soil improvement under various chemical conditions

System and method for ground consolidation

Mechanics, Modeling, and Upscaling of Biocemented Soils: A Review of Breakthroughs and Challenges

Characterizing the Deformation Evolution with Stress and Time of Biocemented Sands

Addressing the challenges of homogeneity, quality control and waste handling in soil bio-cementation: A large-scale experiment

A decade of progress and turning points in the understanding of bio-improved soils: A review

3-D contact and pore network analysis of MICP cemented sands

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

Method and system for producing a carbonate-containing species-rich, nitrogen-containing species-free solution