Vincent Thiéry

Vincent Thiéry
IMT Nord-Europe

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87
Publications
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231
Citations
Introduction
Mineralogy applied to civil engineering, environmental and fundamental thematics.

Publications

Publications (87)
Conference Paper
Full-text available
The 18 th EMABM, taking place in France in 2022, marks the 140 th anniversary of a landmark publication for all cement micros-copists: the description of Portland clinker phases in thin section under the microscope by the famous French chemist Henry Le Chatelier. This paper briefly introduces his scientific life and legacy.
Article
Full-text available
Former mineral extractions tend to generate tons of sterile and waste rocks that have remained in the environment and are distinguished by their extreme concentrations in metal due to the previous used techniques. Because the recovery of these high metal mine wastes is not likely, waste re-use is entirely deserved. The chosen materials derive from...
Article
Standardless Energy dispersive spectroscopy (EDS) on polished samples of Portland cement clinker is routinely performed both for unhydrated phases as well as in cement pastes. Typically, the calcium to silica ratio is investigated. EDS analyses are highly dependent on the polishing quality of the sample. It is thus worth studying the Ca/Si ratios o...
Book
Ce cahier, non exhaustif, se veut être un guide rapide d'introduction à la microscopie des matériaux cimentaires au sens large, du clinker au béton. Reprenant les descriptions des principes de bases des microscopies (optiques et électroniques) courantes ainsi que la préparation des échantillons en vue de leur examen microscopique, il détaille par l...
Article
The Boulogne‐Sur‐Mer area in the North of France is one of the cradles of the French cement industry (the other main one is Grenoble region due to Joseph Vicat's first cement works). From fast setting (Roman) to Portland, those cements were famous in France and have been used throughout the entire country. The main objective of this study is to giv...
Book
Le simple terme « antimoine », si particulier, éveille la curiosité. L’imaginaire collectif a attribué des légendes, tenaces, à l’attribution de ce nom pour cet élément… La réalité est plus complexe et se situe à la croisée des langages anciens et des influences. La bibliographie ancienne consacrée à cet élément est considérable, hermétique parfois...
Article
The Chavanon metamorphic sequence in the Variscan French Massif Central contains marble lenses that have been exploited since at least the 18th century to produce lime. They provided an opportunity to some major pioneers among nineteenth century French geologists to understand how metamorphic rocks are formed. The intimate association between marbl...
Article
Some minerals are of interest both in fundamental and applied sciences. This is especially the case for ettringite Ca6Al2(SO4)3(OH)12·26H2O (hexagonal). As a secondary mineral, it was described in 1874 in limestone xenoliths from the Eifel volcanic area in Germany. As a synthetic phase, in the same decades following its discovery in nature, it was...
Article
Internal sulfate attack can be caused by the gypsum residues present in fine recycled aggregates (FRA). As opposed to the better known external sulfate attack or Delayed Ettringite Formation (DEF), the sulfates in this context are provided by a gypsum contamination of the aggregates. Mortars made with contaminated FRA were subjected to different co...
Article
Full-text available
This paper reports the discovery of columnar structures within paralavas from an active burning coal heap located in the formerly exploited coal basin of Saint-Étienne, Loire, France. The word “paralava” in this work refers to a rock that looks similar on the field to some volcanic rocks (e.g. basalts), and has been partially molten (with up to 50–...
Article
The Mérinchal antimony mine, also known as the La Payrouse mine, has been batch exploited from 1889 to 1932. Poorly known, having most probably not yielded spectacular samples, it is poorly documented in mineralogical collections. The abundance of secondary microminerals makes this site an interesting spot to discover the mineralogy of antimony.
Article
Un mouvement de versant dans la série métamorphique du Chavanon (Massif central français) a conduit à la ruine d'un pont (pont d'Arpiat). Le versant affecté, dominant la Dordogne, est constitué pour l'essentiel de micaschistes à foliation suborizontale ou légèrement pentée, fortement altérés et fracturés. L'étendue de ce glissement de terrain est m...
Poster
Full-text available
"Fête de la science" is a French popular event during which labs are opened to whom is interested to visit.
Poster
Full-text available
"Fête de la science" is a French popular event during which labs are opened to whom is interested to visit.
Article
V-dust (v-dust) is a highly variable source of natural particles in the atmosphere, and during the period of high volcanic activity it can provide a large surface for heterogeneous interactions with other atmospheric compounds. Icelandic v-dust was chosen as a case study due to frequency of volcanic eruptions and high aeolian activity in the area....
Article
Le pont Charles-Marlin, situé sur la commune de Saint-Georges Nigremont dans le département de la Creuse, a été inauguré le dimanche 27/10/1935. Construit en béton armé, c’est un ouvrage élégant dessiné par le bureau d’étude Pelnard-Considère & Caquot. Long de 140 m et haut de 17, il enjambe la rivière « la Rozeille ». Le tablier surmonte deux arcs...
Conference Paper
Full-text available
A 1935 reinforced concrete bridge located in the center of France (“Pont Charles-Marlin”) has been abandoned in 1980 because of the presence of hazardous structural defects (huge cracks) and obvious corrosion of steel bars. Some samples taken above and below the deck have revealed that the concrete has also some troubles. The concrete from the upp...
Chapter
The paper is a result of multi-session EPMA studies of slags formed due to pyrometamorphims in Lapanouse (S France). The paper reports unique, variable crystal chemistry of numerous minerals species found. These species include ~16 potentially new minerals. One of the particular interesting unique features of the mineral parageneses characterized c...
Article
Full-text available
Polluted soils are a serious environmental risk worldwide and consist of millions of tons of mineral waste to be treated. In order to ensure their sustainable management, various remediation options must be considered. Hydraulic binder treatment is one option that may allow a stabilisation of pollution and thus offer a valorisation as secondary raw...
Article
We study water transfer between different model fine recycled concrete aggregates and fresh filler or cement paste in which they are immersed. Our aim is to introduce a spread based experimental protocol for studying the time evolution of water content in initially dry aggregates when mixed with such pastes. The procedure developed hereby is tested...
Article
The present study was conducted to provide a better understanding of the alkali-silica reactivity (ASR) of siliceous limestones in concrete applications. A Swiss siliceous limestone, which is potentially reactive, was subjected to a series of tests. Microbar tests were first conducted to classify the limestones reactivity with respect to ASR. Two o...
Article
Full-text available
Ettringite, Ca6Al2(SO4)3(OH)12.26H2O, or C6AS ̅3H32, is a major phase of interest in cement science as an hydration product and in polluted soil treatment since its structure can accommodate with many hazardous cations. Beyond those technological features, ettringite is first of all a naturally occurring mineral (although rare). Its behavior under...
Article
Full-text available
One of the most - if not the most - artificial, mineral material produced, Portland clinker, is the basic ingredient of cement and thus of concrete. Exception made for people working in this very specific field of research, its microscopy is poorly known. However, it is studied as a classical rock would be (optical microscopy, scanning electron mic...
Article
La pétrographie est la science qui décrit les roches. Par extension, appliquée au béton et de manière plus large aux matériaux de constructions naturels et/ou manufacturés, c'est une approche naturaliste en sciences des matériaux du génie civil.Elle trouve également un domaine d’application très utile dans la caractérisation des granulats de béton...
Article
Some aggregates are potentially reactive and can be used because of a pessimum effect that allows reducing expansion. However some potentially reactive aggregates do not have this property and therefore cannot be employed. Thus, to valorise these potentially reactive aggregates, Supplementary Cementitious Materials (SCMs) can be added such as burnt...
Conference Paper
Full-text available
France and cement microscopy are intimately linked since the pioneering works of the famous chemist Henry Le Chatelier (1850-1936) who was the first to use the petrographic microscope to describe the phases of Portland clinker and the products of cement hydration. Based on a selection of historical documents and samples, we will give a historical a...
Article
With the help of research studies on the freeze resistance of concrete with complex additives containing metakaolin it is found that its optimum amount with microsilica and plasticizing agents can provide concrete with high freeze resistance of F11000 and more. The use of metakaolin – superplasticizing admixture contributes to a slight increase of...
Article
Full-text available
La Roche Mandrin est un éperon granitique dominant la vallée de la Burande à proximité de Singles et de Larodde (Puy-de-Dôme). Elle est située le long d’une faille majeure du Massif central, le Sillon houiller. Compte-tenu de sa morphologie et de sa localisation sur le territoire d’anciennes baronnies, ainsi que de la présence sur son sommet de tra...
Chapter
In 1942, an industrial complex was created at Lapanouse, in Aveyron, southern France, to excavate oil shale by open-pit mining and to process hydrocarbons on site. Only two dumps of processed shales have survived from the industrial complex, which closed in 1951. Mineralogical interest of the slags began with the research of Jean-Robert and Christi...
Article
The Toarcian Posidonia shale from Dotternhausen, Germany, is quarried and burnt in a fluidized bed reactor to produce electricity. The combustion residue, namely burnt oil shale (BOS), is used in the adjacent cement work as an additive in blended cements. The starting material is a typical laminated oil shale with an organic matter content ranging...
Conference Paper
Full-text available
Burnt colliery spoil is a typical waste material from former coal mining regions (e.g. North of France, Tchelyabinsk coal basin in Russia, Silesia in Poland…) where mining residues are stored in heaps. When such coal tips are caught on fire, the materials undergo burning of organic residues, baking and sometimes melting and recrystallization. The r...
Article
The Variscan French Massif Central (FMC) is classically described as a stack of nappes with increasing metamorphism from the bottom (parautochthonous unit) to the top (lower and upper gneiss units). Ultra-high pressure (UHP) metamorphism was already recognized in the uppermost units, with notably coesite-bearing rocks. We report the first finding o...
Article
Full-text available
Ye’elimite-larnite rocks in the Hatrurim formation of the Negev Desert, Israel, are natural analogs of belite sulfoaluminate (BSA) cement clinkers. They have been produced by ultrahigh-temperature combustion metamorphism at ambient pressure of a calcareous sedimentary precursor. Their mineralogy consists of 35–50 vol% β-Ca2SiO4, 15–20 vol% ye’elimi...
Article
Previous studies on concretes based on reactive chert aggregates recognised that for a fixed amount of alkali, there is a reactive silica content that induces maximal expansion due to the alkali–silica reaction (ASR). Beyond this critical point called the “pessimum”, the ASR expansion decreases. The various theories proposed to explain this phenome...
Article
Mimetite, Pb5(AsO4)3Cl, is a ubiquitous mineral that is of interest in various fields such as ore mineralogy, environmental studies, and minerals engineering. Mimetite generally forms hexagonal prisms and barrel-shaped crystals, but its fibrous form is quite an uncommon one. Here we attempt to present its worldwide occurrences on the basis of a lit...
Article
Full-text available
La série métamorphique du Chavanon, située au coeur du Massif central, est constituée principalement de gneiss et de micaschistes. Elle contient des niveaux de marbres (calcaires métamorphisés) qui ont été exploités depuis la première moitié du 19 ème siècle, et peut-être même avant. Ces roches essentiellement composées de calcite forment des lenti...
Article
Full-text available
This article presents the Merinchal antimoniferous district (French Massif Central) from the historical and metallogenic points of view. This small district has been mined in the early 20th century. Subsequent characterization of mineralized indexes occurred afterwards in the 1960's and 1980's. We briefly describe its history and the mining works c...
Article
Full-text available
The Sioule metamorphic sequence is a classically studied area witin the French Massif Central. A large number of studies is available, ranging from fundamental geology (geodynamics) or economic geology (ore deposits such as for example in the Échassières district). Successive generations of geologists followed each other in order to observe, descri...
Article
The present paper provides a review of an imaging tool that is relatively underused in petrographic studies: the multifocus technique. Commonly used in macrophotography, and particularly in the imaging of minerals, it can also be applied to the imaging of thin sections where inclusions or other features that are present at different depths in the s...
Article
This publication illustrates the imaging of both external and internal features of a single-garnet crystal using the multifocus imaging technique. Based on image stacks acquired using a standard optical microscope, it demonstrates that this easily implemented technique yields information on single grains and may in some cases provide more informati...
Article
Full-text available
In the upper part of the Chavanon sequence (Variscan French Massif Central), a widespread, high temperature, Devonian regional anatexis led to the genesis of a complex imbrication of cordierite-rich rocks. One striking type is characterised by a high modal (similar to 60-70%) amount of euhedral cordierite and its cumulative texture. The cordierite...
Book
Full-text available
The Chavanon, Sioule and Ussel metamorphic sequences are located in the center part of the French Massif Central and are thus a key area for the understanding of this inner part of the variscan belt of western Europe. Their inverted metamorphism is usually explained by a single Devonian nappe stacking event. Afterwards, a set of strike-slip regiona...
Article
Full-text available
The Sillon Houiller is one of the main crustal discontinuities of the Variscan domain of the French Massif Central. Paradoxically, its kinematics and its tectonic significance are still a matter of debate. Since Grolier and Letourneur [1968]’s works, a Stephanian sinistral offset, inferred from the emplacement of numerous coal basins along the faul...
Article
Full-text available
The Variscan continental collision has led to the development of large strike-slip shear zones in western Europe. Our study focuses on the regional deformation and shear zone patterns in the Massif Armoricain and the French Massif Central. The synthesis of granite emplacement ages associated to granite deformation fields, allow us to propose a geod...
Article
La géologie, science des roches, est avant tout une discipline d'observation. Si le géologue de terrain ne possède bien souvent que son marteau, sa loupe et sa boussole, il dispose néanmoins d'un outil puissant d'observation des roches, à une échelle largement inférieure au millimètre : le microscope polarisant.
Article
Voltenne est un lieu-dit de Saône et Loire situé à 2 kilomètres au sud-est de la-Petite-Verrière, à environ 15 Km au nord d'Autun. Si aujourd'hui, les traces de cette exploitation sont à l'état de vestiges peu connus du grand public, le nom de Voltenne a fait vibrer le cœur des minéralogistes. Exploités pendant plus d'un siècle, ses filons de fluor...

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