Results 71 to 80 of about 12,404 (205)
This work explores the use of various fillers, including eggshell powder, feather meal, peanut hulls, and sawdust to reinforce a base binder GFS90 (comprised of 90 wt.% sulfur, 5 wt.% chicken fat, and 5 wt.% sunflower oil). The resulting composites showed impressive compressive strengths ranging from 15.3 to 36.2 MPa, making them a potential ...
Bárbara G. S. Guinati +5 more
wiley +1 more source
Untersuchung eines autogen calzinierten Tons hinsichtlich seiner Eignung als SCM
Abstract Die Verringerung des Klinkeranteils im Beton durch geeignete Betonzusatzstoffe (SCMs) ist ein zentraler Ansatz zur Reduktion der CO2‐Emissionen zementgebundener Baustoffe. Calzinierte Tone stellen dabei eine ressourcenschonende Alternative zu Metakaolin dar, ihre Eignung hängt jedoch stark von der mineralogischen Zusammensetzung und von den ...
Henriette Kamitter +3 more
wiley +1 more source
Verwertung von kalziniertem Tunnelausbruchmaterial als Ausgangsstoff für Beton
Abstract Weltweit steigt die Nachfrage nach Baustoffen aus Sekundärrohstoffen und Bindemitteln mit geringen CO2‐Emissionen. Gleichzeitig fallen bei Tunnelbauprojekten vor Ort und innerhalb kurzer Zeit große Mengen an Ausbruchmaterial an. Im Mittelpunkt eines Forschungsprojekts wurden geotechnische Eigenschaften von Ausbruchmaterialien (d.h. tonhaltigen
Björn Siebert +2 more
wiley +1 more source
The Material Basis of 18th‐Century Meissen Porcelain
ABSTRACT In the summer of 1708, the quest for making hard‐paste porcelain from Saxonian clay and other mineral resources succeeded. This was achieved by applying as its essential ingredient newly discovered pure kaolin from Heidelsberg near Aue, western Saxon Ore Mountains.
Robert B. Heimann
wiley +1 more source
Influence of PEG Addition on the Reactivity of a Metakaolin‐Based Geopolymer
PEG induces water redistribution within the activating solution, creating PEG‐rich and silicate‐rich domains that modify the local chemical environment. These interactions influence geopolymerization process and affect the balance between structural stability and flowability.
Xavier Lacambra‐Andreu +2 more
wiley +1 more source
Preparation and Properties of Alkali Activated Metakaolin-Based Geopolymer
The effective activation and utilization of metakaolin as an alkali activated geopolymer precursor and its use in concrete surface protection is of great interest.
Liang Chen +3 more
core +1 more source
XRD/Raman/TGA map phase changes from hydrates to AlPO4–SiO2 solid solutions up to 1000 °C. KH2PO4 improves polymerization and phase control. Combined techniques correlate structure, composition, and optics. Controlled glass‐ceramic forms at 1000 °C with high thermal stability.
Houda Ettoumi +3 more
wiley +1 more source
Ideal supplementary cementing material – Metakaolin: A review
Though being an ancient trend, usage of the homogeneous material cement in the construction industry is steadily getting eradicated with the springing up of supplementary cementing materials (SCM).
Renganathan, Neelakantan Thurvas +3 more
core +1 more source
Modification of geopolymer surface with a silane coupling agent containing quaternary ammonium group enables the development of dual‐functioning ion exchanger for both cations and anions. In the present study, the performance of this material was demonstrated for the uptake of ammonium and nitrate from water.
Yangmei Yu +7 more
wiley +1 more source
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 +4 more
wiley +1 more source

