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Showing 1 to 20 of 45 for “"Clinker"”.
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Powder packing optimisation for clinker reduction in concrete
… Of the concrete constituents, the manufacture of clinker - the basis of all conventional cements - contributes the most significant emissions. Therefore, to reduce the emissions associated with concrete manufacture, there has been extensive research into how clinker content can be reduced without …
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Effect of Cooling Rates on Mineralization in Portland Cement Clinker
The rate at which cement clinker is cooled as it exits the kiln has long been known to be an important factor in cement quality. Cooling rate is one of the variables that has a significant impact on the minerals produced during the cement making process. The goal of the industry has been to produce …
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Diffraction investigations of cement clinker and tricalcium silicate using Rietveld analysis
… quantification of the different phases in cement clinker. Laboratory X-ray, synchrotron, neutron, and combined diffraction data are all used in the investigations. For the first time, comparisons of analysis results using various sources are made, rather than comparing the results from various …
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Paleomagnetism and rock magnetism of Powder River basin clinker, northeastern Wyoming and southeastern Montana
Includes bibliographical references.
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Multi-modal imaging of cementitious carbonation front – insights on performance of low-clinker blends
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-08-01
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Resource efficiency decision-making tools for industry: a new environmental performance metric for clinker manufacturing
… since the decomposition of limestone during clinker manufacturing releases CO<sub>2</sub>, and as a result, complete decarbonisation of the process is impossible. Resource Efficiency (RE) holds promise as a strategy for reducing industrial emissions from cement manufacturing, including both …
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A MULTISCALE EXPERIMENTAL INVESTIGATION OF MICROSTRUCTURAL DEVELOPMENT, MASS TRANSPORT, AND CARBONATION PHENOMENA IN LOW CLINKER CEMENTITIOUS MATERIALS
… for 5-8% of anthropogenic CO2 emissions. Low-clinker cementitious materials offer enormous CO2 reduction potential due to their lower embodied energy, lowered calcination temperatures, low clinker content, and the reduced content of limestone in the clinker feed. This study aims to implement a …
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Seismic, magnetic, and geotechnical properties of a landslide and clinker deposits, Powder River Basin, Wyoming and Montana
Includes bibliographical references.
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Development of low-clinker concrete: partial replacement of cement with calcined clay and limestone, based on selected African raw materials
… content of the clay. Further, LC3 mixes with clinker content in the range of 40% to 70% were designed using the mixture design 3-factors approach. The compressive strength of mortar with a water/binder ratio of 0.4 was used as the performance parameter for optimising proportions. Two reference …
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Grinding of cement clinkers : linking multi-scale fracture properties to system chemistry, mineralogy and microstructure
… which in turn renews the interest in clinker grinding efficiency. Current knowledge on clinker grinding was built over the past decades, but contributions from fracture mechanics remained limited. This research aimed to contribute to this field by investigating industrial clinkers with …
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Quantification of complex phosphorus removal reactions occurring within wetland filtration treatment systems
… in the research program, namely gravel, slag and clinker. Several methods for media analysis were investigated as potential screening tools for media selection. To determine the various forms of phosphorus in the media, sequential extraction tests were considered to be most relevant and useful for …
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La microstructure des clinkers des ciments de type 10 et de type 30 de la cimenterie St-Laurent de Beauport
Dans cette thèse, nous avons étudié deux types de clinkers, à savoir le clinker de ciment de type 10 et de type 30 fabriqués à la cimenterie St-Laurent de Beauport. Cette étude nous a permis d'arriver à une compréhension fondamentale de la microstructure de ces deux clinkers, et à préciser les …
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The compressive strength of fly ash concrete and its mineralogy
… effectiveness and properties of a high carbon clinker ash when used as a cement extender at a 30 direct mass to mass substitution for portland cement. The clinker ash came from the Van Eck power station in Windhoek, Namibia and was milled to pass a 63micron sieve. For comparison fly ashes from …
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Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete
… in high-value applications and the need for clinker is reduced. As a consequence, the CO2 emissions and energy demands associated with the clinker production are reduced. This PhD thesis focuses on the use of blast-furnace slag (BFS) as cement replacing material. Blast-furnace slag, a …
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Étude de la formation de l'ettringite secondaire avec divers types de sulfates alcalins et dosages en gypse
… de 0,5 et 0,38. Dans les deux série d'essais, un clinker à haute teneur en C 3 A produit plus d'expansion qu'un clinker à faible teneur en C 3 A. L'ettringite secondaire est massive lorsqu'il n'y a pas d'espace pour son développement: emtremêlé au C-S-H et dans les interfaces pâte-petits …
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Effect of palm oil waste and quarry dust on the properties of hybrid blocks
… like the palm oil fuel ash and the palm oil clinker as building materials appeared to be a viable solution to such a pollution problem and the problem of buildings' economic design. Therefore, this research is the first attempt to produce hybrid interlocking blocks from palm oil waste and …
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Characterising subaerial basaltic ‘a‘ā lava flows as potential geothermal reservoirs: Nordeste volcanic complex, Volcanic, São Miguel, Azores
… and origins, the vesicles, segregation vesicles, clinker cavities, drainage cavities and fractures or jointing associated with cooling or vesiculation each provide the sequences with a degree of porosity, influencing the overall porosity and permeability of the entire sequence. <br/><br/>The …
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Understanding variability in performance of type il cements: insights from Raman imaging
… Portland cement (OPC). By replacing up to 15% of clinker with finely ground limestone, PLC reduces calcination-related emissions and offers an average greenhouse gas reduction of more than 8%. Although this environmental benefit has accelerated the adoption of PLC across North America, significant …
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ΜΕΛΕΤΗ ΤΗΣ ΕΠΙΔΡΑΣΗΣ ΟΞΕΙΔΙΩΝ ΣΤΟΙΧΕΙΩΝ ΜΕΤΑΠΤΩΣΕΩΣ ΣΤΙΣ ΧΗΜΙΚΕΣ ΚΑΙ ΦΥΣΙΚΟΜΗΧΑΝΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΤΟΥ ΚΛΙΝΚΕΡ
… MOO3, NB2OR, WO3, AND ZRO2 ONTHE PROPERTIES OF CLINKER AND CEMENT. THE EFFECT OF THE PREVIOUS OXIDES ON THEPROCESSES OF RAW MATERIAL SINZERING AND CEMENT HYDRAMON WAS STUDIED BY MEANS OF DIFFERENTIAL SCANNING CALORIMETRY. X-RAY DIFFRACTION OPTICAL AND ELECTRON SCANNING MICROSCOPY. BASED ON THE …
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Sperimentazione di nuovi leganti e prodotti sostenibili per l’edilizia basati sul riuso di ceneri e frammenti piroclastici del vulcano Etna
… di materiali naturali per il confezionamento di clinker standard. Sono state studiate sei miscele di cemento pozzolanico con percentuali di sostituzione di ceneri vulcaniche variabile tra lo 0% ed il 100%. Nel caso del clinker, quattro differenti formulazioni di farine contengono percentuali di …
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