Results 21 to 30 of about 18,984 (163)
CONSISTENCY OF FLY ASH AND METAKAOLIN CONCRETE
As high‐performance Portland cement (PC), fly ash (FA) and metakaolin (MK) concrete have been developed in wide applications, it has growing interest in optimizing and predicting consistency of fresh PC‐FA‐MK concrete for efficient and practical design and construction.
Bai, Jiping, Gailius, Albinas
openaire +4 more sources
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
ABSTRACT This study investigates sodium silicate (SS) solutions derived from rice husk ash (RHA) dissolved in 8 M NaOH as sustainable activators for alkali‐activated cements (AACs), compared with commercial SS. AACs were produced using a 50:50 blend of electric arc furnace slag (EAFS) and biomass bottom ash (BA). The effects of NaOH/RHA ratio (6.6–2.8)
A. Muñoz‐Castillo +2 more
wiley +1 more source
In-situ early age hydration of cement-based materials by synchrotron X-ray powder diffraction [PDF]
Cement based binders are building materials of worldwide importance. Since these samples are very complex, the knowledge/control of their mineralogical composition are essential to design and predict materials with specific/improved performance. Rietveld
Chou, K. W. +8 more
core
. ABSTRACT Water and air pollution are pervasive issues, impacting the majority of global citizens. In response, geopolymers functionalized with photocatalytic metal oxides have emerged as sustainable materials for environmental remediation. This study examines how the Si/Al molar ratio (1 and 2) and photocatalytic WO3 loading (WO3/Al molar ratios of ...
Jamie Wilson +3 more
wiley +1 more source
Menentusahkan faktor tekanan kerja guru sekolah menengah Gred A Daerah Batu Pahat [PDF]
Kajian ini dilaksanakan untuk mengenal pasti faktor-faktor yang mempengaruhi tekanan kerja guru yang mengajar di kawasan bandar dan sekolah tersebut dikategorikan sebagai sekolah gred A.
Halim, Nurul Shafinaz
core
ABSTRACT The use of laterite soil with high Al and Fe content has been investigated as a novel supplementary cementitious material (SCM) to replace traditional mineral materials for clinker substitution. High‐energy ball milling was used to mechanochemically activate laterite and change its reactivity.
Jean Noel Yankwa Djobo +2 more
wiley +1 more source
TEM and SAED Characterization of Metakaolin. Pozzolanic Activity [PDF]
The present study deals with a characterization of metakaolin pozzolanic activity and its chemical character exhibited in the Ordinary Portland Cement (OPC) blends by means of Transmission Electron Microscopy (TEM) and Selected-Area Electron Diffraction (
Fernandez Martinez, F. +3 more
core +2 more sources
This study reports the fabrication of bio‐based 3D‐printed chitosan‐copper catalysts via masked stereolithography (MSLA). The resulting materials exhibit uniform metal distribution, good structural and thermal stability, and catalytic activity in the oxidation of biomass‐derived benzyl alcohol to benzaldehyde, demonstrating a sustainable and efficient ...
Erika Blânzeanu +9 more
wiley +1 more source
Enhancing printability of 3D printed concrete by using metakaolin and silica fume
Abstract This study investigates the effects of incorporating metakaolin (MK) and silica fume (SF) on the fresh and hardened properties of 3D printed concrete (3DPC). Five mix designs were prepared with MK replacement levels of 0%, 10%, 12.5%, and 15%, along with one mix containing 10% MK and 5% SF.
Marwah M. Thajeel +2 more
wiley +1 more source

