Results 61 to 70 of about 14,253 (226)

Effects of Fly Ash Composition to Mitigate Conversion of Calcium Aluminate Cement Composites

Buildings, 2023
Calcium aluminate cement (CAC) is one of the alternative cements that is widely used for special applications. However, during the hydration process degradation of CAC microstructure, the so-called hydrate conversion process, hexagonal calcium aluminate ...
Thwe Thwe Win, Chinnapat Panwisawas, Pitcha Jongvivatsakul, Withit Pansuk, Lapyote Prasittisopin   +4 more
doaj   +1 more source

Phase evolution behaviour of dolomite-alumina system [PDF]

, 2014
Magnesium Aluminate Spinel Refractories are usually prepared by sintering from Calcium Aluminate Cement and Synthetic Mag-Al spinel. But the high cost of electrofused or sintered spinels is a hindrance and hence a suitable alternative is required ...
Das, L
core  

Rietveld Quantitative Phase Analysis of Oil Well Cement: in Situ Hydration Study at 150 Bars and 150 °C [PDF]

, 2019
Oil and gas well cements are multimineral materials that hydrate under high pressure and temperature. Their overall reactivity at early ages is studied by a number of techniques including through the use of the consistometer.
Cuesta-Garcia, Ana Maria, Fraga, Edmundo, García-Aranda, Miguel Ángel, Gomez-de-la-Torre, Maria de los Angeles, Yañez-Casal, Armando, Zea-Garcia, Jesus D.   +5 more
core   +6 more sources

Reassessing Electrolyte Design for Non‐Aqueous Magnesium Batteries: Atomistic Structures and Performance Optimization

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
This review systematically examines recent advances in non‐aqueous electrolytes for rechargeable magnesium batteries, focusing on chlorine‐containing and chlorine‐free systems. It highlights the interdependent relationship between electrolyte compositions, atomistic structures, and electrochemical performance.
Hao Xu, Xiaoqian He, Yue Li, Quanquan Guo, Xinyu Sun, Xinlong Xie, Lingyue Liu, Richard M. Laine, Jianxin Zou, Xinliang Feng, Minghao Yu   +10 more
wiley   +1 more source

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

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

Clays for Low‐Carbon Cements: Overview, Progress, and Challenges

Global Challenges, Volume 10, Issue 1, January 2026.
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Imane Koufany, Isabel Santacruz, Angeles G. De la Torre, María D. Rodríguez‐Ruiz, Miguel A. G. Aranda   +4 more
wiley   +1 more source

Elastic Properties of Concrete Incorporating Ogugu Lateritic Sand as Fine Aggregate

The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
This study investigates the substitution of conventional fine aggregate with Ogugu lateritic sand in concrete grades 25 and 50, focusing on elastic behavior and strength development. The results show that laterized concrete achieves significant strength gains over time, with grade 25 compressive strength increasing from 14.11 N/mm2 at 3 days to 32.27 N/
Joseph O. Ukpata, Desmond E. Ewa, Emmanuel Oyama Ovat, George Uwadiegwu Alaneme, Awafung Emmanuel Adie, Obeten Nicholas Otu   +5 more
wiley   +1 more source

Studying the specific features of the hydration processes of alumina cements based on the compounds of CaO–NiO–Al₂O₃ system [PDF]

, 2018
The article gives the results of studying hydration processes occurring in cement synthesis using waste products of chemical industry. Cement clinker was synthesized with the relation of initial raw components, calcium-containing water treatment waste ...
Khrystych, E. V., Korogodska, A. M., Shabanova, G. M., Shutynskyy, O. G., Tsapko, N. S., Vorozhbiyan, R. M.   +5 more
core  

Stabilisation of Sulfide‐Bearing Clays as a New Building Ground

European Journal of Soil Science, Volume 77, Issue 1, January–February 2026.
ABSTRACT Fine‐grained, sulfide‐bearing marine clays are found along the Finnish coastline. When excavated and exposed to air, the sulfides within these soils react with oxygen to form sulfuric acid. Such soils are classified as hypersulfidic soils.
Thomas Kronberg, Jan‐Erik Eriksson, Miriam Nystrand, Peter Österholm, Leena Hupa   +4 more
wiley   +1 more source