Search Results - "Rossignol, S"

How to control the geopolymer setting time with the alkaline silicate solution by Arnoult, M., Perronnet, M., Autef, A., Rossignol, S.

“…Geopolymers are new binders resulting from the activation of an aluminosilicate source by an alkaline solution. It is well-established that the precursors that…”
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Effect of the reactivity of alkaline solution and metakaolin on geopolymer formation by Gharzouni, A., Joussein, E., Samet, B., Baklouti, S., Rossignol, S.

“…This paper focuses on the effects of alkaline solution reactivity and metakaolin properties on geopolymer formation. To examine these effects, several…”
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Alkali-activated materials from different aluminosilicate sources: Effect of aluminum and calcium availability by Gharzouni, A., Ouamara, L., Sobrados, I., Rossignol, S.

“…The present study aims to determine the influence of aluminum and calcium availability from two different aluminosilicate sources (COx argillite and sediment),…”
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Acid-based geopolymers: Understanding of the structural evolutions during consolidation and after thermal treatments by Mathivet, V., Jouin, J., Gharzouni, A., Sobrados, I., Celerier, H., Rossignol, S., Parlier, M.

“…Materials such as ceramic matrix composites are developed for mechanical applications at high temperature, but their cost remains a limitation. Consequently,…”
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Metakaolin-based geopolymer: Formation of new phases influencing the setting time with the use of additives by Dupuy, C., Havette, J., Gharzouni, A., Texier-Mandoki, N., Bourbon, X., Rossignol, S.

“…[Display omitted] •Setting time of geopolymer samples has been controlled with the use of additives.•The addition of boron-based compound can decrease the pH…”
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Geopolymer synthetized using reactive or unreactive aluminosilicate. understanding of reactive mixture by Arnoult, M., Perronnet, M., Autef, A., Rossignol, S.

“…This work aims to study the effect of the addition of reactive or unreactive aluminosilicate sources on the geopolymerisation reaction, and therefore on the…”
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Influence of metakaolin purities on potassium geopolymer formulation: The existence of several networks by Autef, A., Joussein, E., Poulesquen, A., Gasgnier, G., Pronier, S., Sobrados, I., Sanz, J., Rossignol, S.

“…[Display omitted] •Metakaolins reactivity impacts the behavior in the presence of alkaline solution.•Highly reactive metakaolin accelerates the consolidation…”
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Role of the silica source on the geopolymerization rate by Autef, A., Joussein, E., Gasgnier, G., Rossignol, S.

“…The synthesis of geopolymer-silica composites was achieved at room temperature to determine the role of the silica source (quartz or amorphous silica) on the…”
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Controlling the reactivity of silicate solutions: A FTIR, Raman and NMR study by Vidal, L., Joussein, E., Colas, M., Cornette, J., Sanz, J., Sobrados, I., Gelet, J-L., Absi, J., Rossignol, S.

“…[Display omitted] •The number of non-bridging oxygen atoms (NBOs) is directly linked to the Si/M molar ratio.•The higher reactivity, i.e. the higher number of…”
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Feasibility of producing geopolymers from two different Tunisian clays before and after calcination at various temperatures by Essaidi, N., Samet, B., Baklouti, S., Rossignol, S.

“…Two Tunisian clays, kaolinitic from the Tabarka (Clay T) region and illito-kaolinitic rich in hematite from the Medenine (Clay M) region, are tested as…”
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Predictive tools to control the structure and the properties of metakaolin based geopolymer materials by Gharzouni, A., Sobrados, I., Joussein, E., Baklouti, S., Rossignol, S.

“…[Display omitted] •Metakaolin reactivity depends on its physical, chemical and structural properties.•Geopolymer existence domains in Si-Al-M/O ternary diagram…”
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In situ inorganic foams prepared from various clays at low temperature by Prud'homme, E., Michaud, P., Joussein, E., Peyratout, C., Smith, A., Rossignol, S.

“…Geopolymers are amorphous three-dimensional aluminosilicate binder materials that may be synthesized at room or slightly higher temperature by alkaline…”
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Recycling of geopolymer waste: Influence on geopolymer formation and mechanical properties by Gharzouni, A., Vidal, L., Essaidi, N., Joussein, E., Rossignol, S.

“…Geopolymers are new binders resulting from the activation of an aluminosilicate source by an alkaline solution. These binders are economically and…”
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Control of the alumino-silico-phosphate geopolymers properties and structures by the phosphorus concentration by Mathivet, V., Jouin, J., Parlier, M., Rossignol, S.

“…Acid-based geopolymers are interesting materials, as they usually present higher mechanical and thermal properties than their alkali-based counterparts do, but…”
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Synthesis and thermal stability of Re2Zr2O7, (Re=La, Gd) and La2(Zr1−xCex)2O7−δ compounds under reducing and oxidant atmospheres for thermal barrier coatings by Joulia, A., Vardelle, M., Rossignol, S.

“…Rare-earth zirconates and cerates have attracted particular interest for thermal barrier coating (TBC) applications due to their advantageous thermal…”
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Role of the silica source on the geopolymerization rate: A thermal analysis study by Autef, A., Joussein, E., Gasgnier, G., Rossignol, S.

“…Increasing the amount of amorphous silica in a mixture containing silica and quartz favors a polycondensation reaction (i.e., geopolymerization) and improves…”
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Addition of low reactive clay into metakaolin-based geopolymer formulation: Synthesis, existence domains and properties by Gharzouni, A., Samet, B., Baklouti, S., Joussein, E., Rossignol, S.

“…This paper investigates the addition of low reactive Tunisian clay into metakaolin-based geopolymer as a valorization way in alkaline media. To conduct this…”
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The use of a housecleaning product in an indoor environment leading to oxygenated polar compounds and SOA formation: Gas and particulate phase chemical characterization by Rossignol, S., Rio, C., Ustache, A., Fable, S., Nicolle, J., Même, A., D'Anna, B., Nicolas, M., Leoz, E., Chiappini, L.

“…This work investigates Secondary Organic Aerosol (SOA) formed by limonene ozonolysis using a housecleaning product in indoor environment. This study combines…”
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Beckwith-Wiedemann syndrome: growth pattern and tumor risk according to molecular mechanism, and guidelines for tumor surveillance by Brioude, F, Lacoste, A, Netchine, I, Vazquez, M-P, Auber, F, Audry, G, Gauthier-Villars, M, Brugieres, L, Gicquel, C, Le Bouc, Y, Rossignol, S

“…Beckwith-Wiedemann syndrome (BWS) is an overgrowth syndrome associated with an increased risk of pediatric tumors. The underlying molecular abnormalities may…”
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Demyelination and degeneration in the injured human spinal cord detected with diffusion and magnetization transfer MRI by Cohen-Adad, J., El Mendili, M-M., Lehéricy, S., Pradat, P-F., Blancho, S., Rossignol, S., Benali, H.

“…Characterizing demyelination/degeneration of spinal pathways in traumatic spinal cord injured (SCI) patients is crucial for assessing the prognosis of…”
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