Results 91 to 100 of about 805,927 (209)

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

Strontium Retention of Calcium Zirconium Aluminate Cement Paste Studied by NMR, XRD and SEM-EDS

open access: yes, 2020
This work concerns the hydration mechanism of calcium zirconium aluminate as a ternary compound appearing in the CaO-Al2O3-ZrO2 diagram besides the calcium aluminates commonly used as the main constitutes of calcium aluminate cements (CACs).
Dominika Madej
core   +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

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

Physicochemical properties of a calcium aluminate cement containing nanoparticles of zinc oxide. [PDF]

open access: yesRestor Dent Endod, 2023
da Rosa AF   +7 more
europepmc   +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

Interactions between Halothiobacillus neapolitanus and mortars: Comparison of the biodeterioration between Portland cement and calcium aluminate cement

open access: yes, 2017
International audienceBiodeterioration of mortars made either with ordinary Portland cement or calcium aluminate cement by Halothiobacillus neapolitanus was investigated by bioleaching experiments.
Hondjuila Miokono, Eminence Dorelle   +5 more
core   +1 more source

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