Results 91 to 100 of about 14,253 (226)

Aluminum-rich belite sulfoaluminate cements: clinkering and early age hydration [PDF]

open access: yes, 2009
Belite sulfoaluminate (BSA) cements have been proposed as environmentally friendly building materials, as their production may release up to 35% less CO2 into the atmosphere when compared to ordinary Portland cements.
Adolfsson   +76 more
core   +2 more sources

Propriedades e bioatividade de um cimento endodôntico à base de aluminato de cálcio Properties and bioactivity of endodontic calcium aluminate cement

open access: yesCerâmica, 2011
Desde sua introdução na endodontia como um material retro-obturador e selador de defeitos da raiz dental, o agregado de trióxido mineral (MTA) tem sido considerado como um material endodôntico revolucionário. Apesar disso, este material apresenta algumas
I. R. Oliveira, V. C. Pandolfelli
doaj   +1 more source

Nanotechnology for calcium aluminate cement: thematic analysis

open access: yesReviews on Advanced Materials Science
Calcium aluminate cement (CAC) is a multifaceted material recognized for its rapid strength development and improved durability; nonetheless, it encounters issues such as thermodynamical phase conversion.
Prasittisopin Lapyote
doaj   +1 more source

Calcium aluminate cement hydration in a high alkalinity environment

open access: yesMateriales de Construccion, 2009
The present paper forms part of a broader research project that aims primarily to devise new cementitious products via the alkali activation of silico-aluminous materials.
C. Pastor   +3 more
doaj   +1 more source

Characterization of two calcium aluminate cement pastes

open access: yes, 2021
Este capítulo examina la caracterización de cementos de aluminato de calcio (CAC) con 52% en peso y 71% en peso de contenido de alúmina. Las muestras de pasta de cemento se fabricaron en proporciones de agua a cemento de 0,4 y 0,5 (a / c). La microestructura tanto de los polvos de cemento crudo como de sus correspondientes muestras se caracterizaron ...
ZAPATA MESA, JOHN FERNANDO   +2 more
openaire   +1 more source

Effect of Gypsum on the Early Hydration of Cubic and Na-Doped Orthorhombic Tricalcium Aluminate [PDF]

open access: yes, 2018
The tricalcium aluminate (C3A) and sulfate content in cement influence the hydration chemistry, setting time and rheology of cement paste, mortar and concrete. Here, in situ experiments are performed to better understand the effect of gypsum on the early
Cincotto, Maria Alba   +7 more
core   +4 more sources

Calcium aluminate blended cements incorporating engineered residues

open access: yes, 2022
Au vu des objectifs de durabilité visant à décarboniser l'industrie du ciment, les liants alternatifs ont fait l'objet d'une attention considérable à l'échelle mondiale au cours des dernières décennies. Ces liants sont basés sur l'utilisation de sous-produits industriels comme substituts aux ciments, ou comme granulats ou encore comme composants de ...
openaire   +2 more sources

Research on the Mechanical Properties of Composite Grouting Materials Based on Ordinary Portland–Sulphoaluminate Cement

open access: yesBuildings
This study aimed to enhance the mechanical properties of calcium sulfoaluminate cement grouting materials (HCSA) by investigating the effects of ordinary Portland cement (OPC) content, the ratio of quicklime to gypsum, and the dosage of sodium aluminate ...
Zhenhua Wang   +4 more
doaj   +1 more source

Sapropelic modifying additives for cement bonding agents

open access: yesВестник СибАДИ, 2017
The data on obtaining active mineral additives from sapropelic raw materials while their burning at 850 … 900оС and afterpowdering are presented in the article.
V. A. Khomich, O. I. Krivonos
doaj   +1 more source

Rheological and hydration characterization of calcium sulfoaluminate cement pastes [PDF]

open access: yes, 2015
Calcium sulfoaluminate (CSA) cements are currently receiving a lot of attention because their manufacture produces less CO2 than ordinary Portland cement (OPC).
García-Aranda, Miguel Ángel   +4 more
core   +1 more source

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