Results 81 to 90 of about 23,098 (274)

Alumosilicate ceramic proppants based on natural refractory raw materials [PDF]

open access: yes, 2012
The sintering-strengthening effect of the additions of the highly ferrous bauxite (with Fe[2]O[3] content of 20-25 % in the calcined state) in the compositions with refractory clays was established.
T V Vakalova   +17 more
core   +2 more sources

Sustainable cement production: minimizing CO2 by optimizing efficiency with LC3

open access: yesDiscover Applied Sciences
LC3 (limestone calcined clay cement) is an innovative cement formulation that combines limestone and calcined clay. It was developed to address the environmental impact of traditional Portland cement production, which is associated with high carbon ...
Amany Mostafa   +3 more
doaj   +1 more source

Recycling of calcined clay as an alternative precursor in geopolymers: A study of durability

open access: yesJournal of Materials Research and Technology
The alkali-activated materials have properties like commonly used cementitious materials, however, it does not have burning steps at high temperatures that emit large amounts of CO2 into the atmosphere.
José Alexandre Tostes Linhares Júnior   +3 more
doaj   +1 more source

Potencial de argila caulinítica de Campos dos Goytacazes, RJ, na produção de pozolana para concreto de alta resistência Potential of kaolinitic clay from Campos dos Goytacazes, RJ, in the production of pozzolan for high-strength concrete

open access: yesCerâmica, 2010
Este trabalho descreve as etapas de produção e caracterização de uma pozolana a partir de uma argila do município de Campos dos Goytacazes, RJ. A influência de diferentes temperaturas de queima em forno resistivo na atividade pozolânica da argila ...
G. C Cordeiro, J. M Désir
doaj   +1 more source

Enhancing the Reactivity of Dicalcium Silicate Using Aluminum and Sulfur Ions Co‐Doping

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 5, May 2026.
ABSTRACT Belite‐rich cements are a lower‐energy and lower‐CO2 alternative to Portland cements, but the low hydraulic activity of belite remains a major limitation. This study explores the impact of aluminum and sulfur co‐doping on the structure and hydration of synthetic dicalcium silicate (C2S).
Hyeonseok Jee   +2 more
wiley   +1 more source

Influence of Thermal Treatment on Kankara Kaolinite [PDF]

open access: yes, 2013
In this work, the influence of thermal treatment on the structure of Kankara kaolinite was studied for the first time, using X-ray diffractogram (XRD), EDX, NanoSEM, FTIR-Attenuated Total Reflectance, DTA/TGA and BET surface area measurements.
Aderemi, BO   +4 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Study of Mortars Made with Natural and Artificial Pozzolans [PDF]

open access: yes, 2019
The objective of this work is to evaluate the thermal activation potential of clay soils, particularly the clay fraction of dam mud, for the production of artificial pozzolan which can be substituted to cement in concrete and mortars applications and ...
BENAZZOUK, Amar   +3 more
core  

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, Volume 36, Issue 27, 2 April 2026.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Performance of Composite Portland Cements with Calcined Illite Clay and Limestone Filler Produced by Industrial Intergrinding [PDF]

open access: gold, 2023
Edgardo F. Irassar   +5 more
openalex   +1 more source

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