Results 71 to 80 of about 873,531 (208)

Study of hydration of cement pastes added with used catalytic cracking catalyst (FCC) from a colombian refinery

Revista Facultad de Ingeniería Universidad de Antioquia, 2013
This paper analyzes the effect of the incorporation of industrial waste from an oil refinery in Colombia, known as used catalytic cracking catalyst (FCC), in the hydration process of cementitious pastes. For this purpose, ordinary Portland cement pastes
Jenny Johanna Trochez, Janneth Torres Agredo, Ruby Mejía de Gutiérrez   +2 more
doaj   +1 more source

Waste Loading and Durability of Calcium Aluminosilicate Glasses for Immobilization of Plutonium‐Contaminated Material

International Journal of Applied Glass Science, Volume 17, Issue 4, October 2026.
ABSTRACT Calcium aluminosilicate (CAS) glass was assessed for its ability to immobilize elements present in Plutonium‐Contaminated Materials (PCM) including metals (Fe and Cr), polyvinyl chloride (PVC), and Pu (investigated using the nonradioactive surrogates Ce and Hf).
D. Parkes, C. L. Thorpe, M. T. Harrison, S. Ismail, D. E. Deegan, M. C. Stennett, L. R. Blackburn, C. L. Corkhill, R. J. Hand   +8 more
wiley   +1 more source

Influence of radiopacifier additives on calcium aluminate cement properties [PDF]

Materials Research, 2014
The aim of this study was to determine the best radiopaque additive to be incorporated to calcium aluminate cement (CAC) to promote radiopacity. Measurements of optical density were carried out on white MTA and CAC with and without additives such as ...
Ivone Regina de Oliveira, Talita Luana de Andrade, Daniele Coelho Matsuo, Renata Martins Parreira, Marcos Jacobovitz, Victor Carlos Pandolfelli   +5 more
doaj   +1 more source

Understanding Surface Interfacial Phenomena During Tricalcium Silicate Dissolution From TEM and XRR

Journal of the American Ceramic Society, Volume 109, Issue 10, October 2026.
ABSTRACT Understanding the dissolution mechanism of tricalcium silicate (C3S) is essential for interpreting its reactivity in cementitious systems. While the dissolution mechanism of C3S has been considered to follow the classical leached‐layer model, the mechanism has also been proposed to occur through the coupled interfacial dissolution ...
Aidyn Tugelbayev, Hongyu Wang, David Jarret Wright, Jing Zhao, F. Marc Michel, Alexander S. Brand   +5 more
wiley   +1 more source

Calcium aluminate hydrates - laboratory preparation and characterisation

, 2008
Calcium aluminate phases are important parts of Ordinary Portland cement and Alumina cement. Various calcium aluminate hydrates originate during the hydration of calcium alumina phases. Their origin depends on the conditions of hydration.
Koplík, Jan
core   +1 more source

Rapid Identification of Mineral Phases on Continuous‐Casting Stopper Rods via SEM–CL Analysis

Journal of the American Ceramic Society, Volume 109, Issue 10, October 2026.
ABSTRACT Although the identification of solidified liquid (12CaO·7Al2O3, 3CaO·Al2O3) and CaO·Al2O3 phases is critical for detecting stopper rod degradation, it is hindered by complex morphologies and the analytical effort required. We propose a rapid method for identifying mineral phases on alumina stopper rods used in continuous casting of Ca‐treated ...
Susumu Imashuku
wiley   +1 more source

Dehydration kinetics of calcium aluminate cement hydrate under non-isothermal conditions

, 2004
Calcium aluminate cement (containing 75% Al2O3), which finds extensive high temperature applications, was synthesized by sintering a mixture of calcined alumina and synthetic calcium carbonate.
Bose, S.; id_orcid, Roychoudhury, A., Bandyopadhyay, N., Maitra, S.   +3 more
core   +1 more source

Synthesis and Reaction Pathways of Sr12Al14O32Cl2 Using Polymeric Steric Entrapment

Journal of the American Ceramic Society, Volume 109, Issue 10, October 2026.
Synthesis of Sr12Al14O33${\rm Sr}_{12}{\rm Al}_{14}{\rm O}_{33}$, an isostructural compound to the mineral mayenite (Ca12Al14O33${\rm Ca}_{12}{\rm Al}_{14}{\rm O}_{33}$), was explored through polymeric steric entrapment using either Sr(NO3)2${\rm Sr}{({\rm NO}_3)}_2$ or SrCl2•$\bullet$6H2O as the Sr source.
Kathleen C. Loughlin, Vincent Joseph Garcia, Claudia J. Rawn   +2 more
wiley   +1 more source

Hydration and dimensional stability of calcium aluminate cement based systems [PDF]

, 2014
Calcium aluminate cements (CAC) are often used in combination with calcium sulfate and Portland cement for special applications where rapid setting, rapid drying and shrinkage compensation are required.
Bizzozero, Julien
core   +2 more sources

Temporal effects on the micro- and nano-structural cement-slag pastes subjected to microwave curing over 7 years

Case Studies in Construction Materials
This study examines the changes in the micro- and nano-structures of microwave-cured cement and slag pastes over 7 years. The properties of aged samples were compared with those of young pastes made from the same mixtures.
Dong Li, Zhenwu Shi, Yunshi Pan, Xiaojian Gao, Shuangxin Li   +4 more
doaj   +1 more source