Results 81 to 90 of about 873,531 (208)

Mineral Carbonation of Mixed Industrial Residues for Enhanced CO2 Sequestration and Environmental Stabilization: The Role of Slag Composition and Industrial Symbiosis

Advanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Accelerated CO2 carbonation transforms mixed industrial by‐products, including bottom ash (BA), fly ash (FA), and steel slags, into a value‐added material. The carbonated residue is used as a filler for HDPE composites, promoting both carbon sequestration and circular resource utilization.
Erica Pietrobelli, Matteo Giosuè Vezzuto, Alessandra Zanoletti, Alessandro Sorze, Giulia Fredi, Elza Bontempi   +5 more
wiley   +1 more source

Modifying admixtures to cement compositions produced from local raw materials

MATEC Web of Conferences, 2018
Durability of hardened cement paste depends on chemical and mineralogical composition of Portland cement. The main factor for hardened cement paste is higher content of calcium aluminate and free calcium hydroxide, binding of which into water-insoluble ...
Vasileva Daria, Protodiakonov Egor, Egorova Anastasia, Antsupova Svetlana   +3 more
doaj   +2 more sources

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

The Chemical Record, Volume 26, Issue 9, September 2026.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino, Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara   +4 more
wiley   +1 more source

Effect of urea on the thixotropic behavior of mixtures containing calcium aluminate cement and portland cement [PDF]

This study investigates influence of urea utilization on the rheological and thixotropic properties of Portland and calcium aluminate cementitious system.
Caparoglu, Neslihan, Mardani, Ali, Altun, Oznur Biricik   +2 more
core   +2 more sources

In Situ X‐Ray Diffraction Study of a Microwave‐Based Hydrothermal Synthesis of Mayenite Ca12Al14O33

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 13, 1 September 2026.
Microwave‐assisted hydrothermal synthesis enables rapid transformation of aluminium‐ and calcium‐hydroxide into mayenite with high surface area. Optimised synthesis conditions comprise a microwave step at 80°C for 5 min followed by calcination at 800°C. The reactions during calcination were studied via in situ XRD measurements.
Nils L. Kotschote, Franziska Hupe, Gina‐Lee Pitulle, Stefan G. Ebbinghaus   +3 more
wiley   +1 more source

Synergistic Improvement in Setting and Hardening Performance of OPC-CSA Binary Blended Cement: Combined Effect of Nano Calcium Carbonate and Aluminum Sulfate

Applied Sciences
The combined effect and corresponding mechanism of nano calcium carbonate (NC) and aluminum sulfate (AS) on the setting and hardening performance of binary blended cement (ordinary Portland cement (OPC) and calcium sulfoaluminate cement (CSA)) were ...
Huanhuan Li, Zhiwei Liu, Mohammad Mahadi Hasan, Liheng Zhang, Qiang Ren, Zichen Lu, Zhenping Sun   +6 more
doaj   +1 more source

Development of a Nano‐Hybrid Composite Using Bovine Hydroxyapatite and Montmorillonite for Endodontic Applications—An In Vitro Study

International Endodontic Journal, Volume 59, Issue 9, Page 1936-1953, September 2026.
ABSTRACT Aim Hydraulic calcium silicate cements are widely employed in endodontics due to their excellent biocompatibility, bioactivity, sealing ability, and remineralisation potential. However, currently used products such as mineral trioxide aggregate (MTA) exhibit several limitations, including discolouration, cost, and poor handling properties ...
P. A. A. S. Prasad Kumara, Paul R. Cooper, Peter Cathro, Henry F. Duncan, Maree Gould, George Dias, Jithendra Ratnayake   +6 more
wiley   +1 more source

The kinetics of ettringite formation and dilatation in a blended cement with beta-hemihydrate and anhydrite as calcium sulfate

, 2005
The phase formation, heat of hydration and dilatation in a blended cement consisting of 50 wt.% calcium aluminate cement, 25 wt.% Portland cement and 25 wt.% calcium sulfate were studied (w/c= 1).
Evju, C, Hansen, Staffan, Hansen, Staffan,, Lund University.   +3 more
core   +2 more sources

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

, 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, Christine Lors, Lors, Christine, Eminence Dorelle Hondjuila Miokono, Damidot, Denis, Denis Damidot   +5 more
core   +1 more source

Potential of Saudi Arabian bauxite to produce low-carbon cement

Cement
To produce calcium aluminate cement (CAC), bauxites are usually fused with lime/limestone at high temperature (1600 °C). At this temperature, the bauxite´s hydrates of alumina break down - dehydroxylation - and combine with calcium forming monocalcium ...
S. Pavia, O. Alelweet
doaj   +1 more source