ciment gangue portland
Full Length ArticleProperties of coal gangue-Portland cement
2019.6.1 Mixing proportion and specimen preparation. Coal gangue was added by mass percentage of 10%, 20%, 30% and 50% to replace Portland cement for obtaining
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Properties of coal gangue-Portland cement mixture with
2019.6.1 To promote the recycling of self-ignited coal gangue (CG) as a partial substitute for Portland cement (PC) and reduce carbon footprint of fossil fuel,
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Hydration Properties of Portland Cement Paste with
2019.11.11 Boron gangue made a significant retardation on Portland cement hydration with the form of BO 3 3− and BO 4 5−, which
MoreProperties of coal gangue-Portland cement mixture with
2019.6.1 To promote the recycling of self-ignited coal gangue (CG) as a partial substitute for Portland cement (PC) and reduce carbon footprint of fossil fuel,
More
Properties of coal gangue-Portland cement mixture with
Semantic Scholar extracted view of "Properties of coal gangue-Portland cement mixture with carbonation" by L. Qin et al. Skip to search form Skip to main content Skip to
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Hydration Properties of Portland Cement Paste with Boron Gangue
2020.3.16 Boron gangue made a significant retardation on Portland cement hydration with the form of BO33− and BO45−, which caused an obvious retardation of
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The Properties and Hydration of a Calcined Coal Gangue
2021.12.21 The combined incorporation of the calcined coal gangue and limestone promoted the hydration of cement at an early hydration age, and the pozzolanic reaction
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Hydration process in Portland cement blended with activated coal
2011.7.1 A long-term compressive strength improvement can in fact be achieved by using activated coal gangue as a supplementary cementing material. The relationship
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On Experimental Study of Activation Coal Gangue-Portland
2013.11.1 Added appropriate amount of microwave activation coal gangue intoⅠ42.5 Portland cement, there were not negative influence to Portland cement
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Hydration process in Portland cement blended with activated coal
A long-term compressive strength improvement can in fact be achieved by using activated coal gangue as a supplementary cementing material. The relationship between
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Ciment - Définition et Explications - Techno
Définition et Explications - Le ciment (du latin caementum, signifiant moellon, pierre de construction) est une matière pulvérulente, formant avec l’eau ou avec une solution saline une pâte plastique liante, capable
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Properties of coal gangue-Portland cement mixture with
2019.6.1 Carbonation curing behaved a better improvement on compressive strength and chloride penetration resistance of PC-CG blend than those of PC mixture. This effect provides a partial compensation for the negative effect of coal gangue. (2) Both coal gangue incorporation and carbonation curing decreased drying shrinkage of cement paste.
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EFFECT OF GANGUE ON HYDRATION PROCESS OF PORTLAND
Two kinds of gangue with different hydration activities,namely,original gangue and activated gangue,were blended in cement paste,respectively.The effects of gangue on the hydration process of Portland cement clinker in gangue-cement blend were investigated via a non-evaporable water content test and cement clinker hydration degree determined by a
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Hydration process in Portland cement blended with activated coal gangue ...
2011.7.1 This paper deals with the hydration of a blend of Portland cement and activated coal gangue in order to determine the relationship between the degree of hydration and compressive strength development. The hydration process was investigated by various means: isothermal calorimetry, thermal analysis, non-evaporable water
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Ground Granulated Blast-Furnace Slag SpringerLink
2017.12.9 By 1901 the manufacture of “Eisenportlandzement” containing maximum 30% of ground granulated blast-furnace slag (ggbfs) became accepted and in 1907, the first “Hochofenzement” with up to 85% ggbfs content was produced (Moranville-Regourd 1998; Smolczyk 1978 ). Ever since, ggbfs has been successfully used in cementitious
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Research progress on cement-based materials by X-ray
2020.3.13 X-ray computed tomography (CT), as an imaging technique, has played an important role in the area of material characterization in civil engineering during the past 40 years. It has promoted the investigation of materials from the macroscopic testing to the microscopic characterization. Though numerous researches have been done by using X
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Cement substitution with secondary materials can reduce annual
2022.9.30 Maximal substitution of Portland cement clinker with these materials could have avoided up to 1.3 Gt CO2-eq. emissions (~44% of cement production and ~2.8% of anthropogenic CO2-eq. emissions) in 2018.
MoreHydration process in Portland cement blended with activated coal gangue ...
2011.7.1 This paper deals with the hydration of a blend of Portland cement and activated coal gangue in order to determine the relationship between the degree of hydration and compressive strength development. The hydration process was investigated by various means: isothermal calorimetry, thermal analysis, non-evaporable water
More
Properties of coal gangue-Portland cement mixture with
2019.6.1 Coal gangue was obtained from Dalianhe city, Heilongjiang province of China. It looks brick-red particles due to self-ignition effect and was pulverized into a powder as shown in Fig. 1.The mineralogical phase of coal gangue consists of quartz and feldspar as indicated in Fig. 2.Portland cement (PC) was produced by Dalian Cement Group with
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Ciment Portland - Ciment Quebec
Le ciment Portland est l’élément clé de la fabrication du béton, le matériau de construction le plus utilisé au monde. C’est dans cet esprit que CQI a nommé sa gamme de ciments Portland ELEMENT™. D’usage général, le ciment Portland de type GU convient à une grande variété de travaux de construction. Vrac.
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Hydration process in Portland cement blended with activated coal gangue ...
2011.7.1 Coal gangue is the main industrial solid waste that is physically separated from bulk coal during coal preparation. In China, the deposition amount of coal gangue is over 500 million tons with an ...
MoreCiment
Le ciment artificiel, ou ciment Portland, est un mélange artificiel (de la main de l'homme) de 76 à 80% de carbonate de chaux, et de 24 à 20% d'argile, broyé et mélangé à cru, puis cuit à une température de 1 450 °C pour obtenir une roche artificielle particulièrement dure, le clinker, broyé à nouveau particulièrement finement, donne le ciment artificiel.
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Determination of the degree of hydration of Portland
2021.12.1 The results of SEM-EDS analysis showed that the ratio of the main oxides in the four phases was higher than the theoretical value. A similar result was found in Gineys’s et al. research on clinker synthesized in the laboratory [23].The difference between the theoretical and experimental values could be due to the presence of minor elements
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Ciment Portland — Wikipédia
Le ciment "portland" est un produit normalisé au niveau international et européen. On obtient le ciment Portland en ajoutant à un clinker réduit en poudre, et qui constituera plus de 90% du produit final, une petite quantité de sulfate de calcium ( gypse / plâtre) qui contrôle le temps de prise du ciment, ainsi que divers produits d ...
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Properties of coal gangue-Portland cement mixture with
Semantic Scholar extracted view of "Properties of coal gangue-Portland cement mixture with carbonation" by L. Qin et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. 211,439,591 papers from
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Procédé d'activation des sols argileux
Procédés d’activation des sols argileux Rojo Amandine1, Phelipot-Mardelé Annabelle1, Lanos Christophe1, Molez Laurent2 1 UEB - LGCGM, Equipe Matériaux Thermo-Rhéologie, IUT Rennes christophe.lanos@univ-rennes1 2 UEB - LGCGM, Equipe Matériaux Thermo-Rhéologie, INSA Rennes laurent.molez@insa-rennes RÉSUMÉ.L’utilisation de
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On Experimental Study of Activation Coal Gangue-Portland
2013.11.1 Added appropriate amount of microwave activation coal gangue intoⅠ42.5 Portland cement, there were not negative influence to Portland cement properties such as fineness, setting time, volume stability, pozzolan activity, strength by physical and mechanical experiments and scanning electron microscopy (SEM) ; though
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Pourquoi ne pas mettre de ciment sur les murs d'une maison
2021.3.18 Notre avis : nous avons déjà largement abordé ce sujet de l’humidité dans les dossiers de Claude Lefrançois sur Build Green. Tout enduit et mortier béton (à base de ciment Portland) est à proscrire sur des murs en pierre et en bois. Sa perméabilté est un atout pour l’étanchéité à l’eau mais une calamnité pour sa perspirance ...
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On Experimental Study of Activation Coal Gangue-Portland Cement
2013.11.1 Abstract. Added appropriate amount of microwave activation coal gangue intoⅠ42.5 Portland cement, there were not negative influence to Portland cement properties such as fineness, setting time ...
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Hydration Properties of Portland Cement Paste with Boron Gangue
2019.11.11 When boron gangue is added to cement paste, an insoluble coat on cement grains’ surfaces that prevents cement hydration will be produced. And combined with the effect of the reaction between boric acid and Ca(OH) 2 (formulas and ()), the formation of portlandite nucleation is severely prevented; hence, there is more less
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