Results 71 to 80 of about 8,920 (223)

Enhancing printability of 3D printed concrete by using metakaolin and silica fume

open access: yesStructural Concrete, Volume 27, Issue 1, Page 1068-1084, February 2026.
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

Utilization of cellulose nanocrystal as a bio‐based material and nanosilica in cement‐based systems: A comparative study

open access: yesStructural Concrete, Volume 27, Issue 1, Page 1255-1280, February 2026.
Abstract Cellulose nanocrystals (CNCs), increasingly utilized in cement‐bound materials, offer improved material properties and enhanced sustainability due to their bio‐based origin. Nanosilica (NS), known for its high reactivity and refinement of cement microstructure, also significantly impacts cement performance.
Ali Satar Jaber Al‐Askary   +2 more
wiley   +1 more source

Menentusahkan faktor tekanan kerja guru sekolah menengah Gred A Daerah Batu Pahat [PDF]

open access: yes, 2013
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  

Suppression Mechanisms for Cesium Leaching from a Fly Ash–Mixed Cement Matrix

open access: yesJAPAN ARCHITECTURAL REVIEW, Volume 9, Issue 1, January–December 2026.
ABSTRACT The two suppression mechanisms for Cs leaching, which contain fly ash (FA), are the refinement effect on capillary pores and the adsorption effect that are dependent on the mix proportion of FA. If the leaching suppression by the adsorption effect is expected, FA should be mixed with the cement matrix at a replacement ratio of approximately 70
Kazuo Murakami   +2 more
wiley   +1 more source

Clinkering and early age hydration characterization of Belite-Alite Calcium Sulfoaluminate (BACSA) cements [PDF]

open access: yes, 2015
In this work, four BACSA clinkers with different compositions (belite ~ 70-55 wt %, alite ~ 10-15 wt % and ye’elimite ~ 10-15 wt %) were synthesized (at laboratory scale).
García-Aranda, Miguel Ángel   +5 more
core  

TEM and SAED Characterization of Metakaolin. Pozzolanic Activity [PDF]

open access: yes, 2012
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

Strategies for achieving real‐world robustness in topologically engineered surfaces with special wettability

open access: yesDroplet, Volume 5, Issue 1, January 2026.
Engineered topologies surfaces with special wettability are promising for their ability to precisely customize wetting behaviors and incorporate versatile functionalities, setting them apart from randomly structured surfaces. However, robustness and durability have been hurdles to their broad application.
Sin‐Yung Siu   +6 more
wiley   +1 more source

Natural Mordenite from Spain as Pozzolana

open access: yesMolecules, 2020
This work deals with anomalous concentrations of natural mordenite in the southeast of Spain. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) studies evidenced that the samples contain mainly monomineral zeolitic phase of mordenite (70%
Leticia Presa   +3 more
doaj   +1 more source

Taftan Pozzolan-Based Geopolymer Cement

open access: yesInternational Journal of Industrial Engineering and Production Research, 2008
Abstract: In recent years, many research works have been done to investigate the possibility of utilizing a broad range of materials as raw materials in the production of geopolymer cements. The use of artificial pozzolans or aluminosilicate-type industrial waste materials such as granulated blast-furnace slag and fly ash has been reported in many ...
A. Allahverdi   +2 more
openaire   +1 more source

Management and valorisation of wastes through use in producing alkali-activated cement materials [PDF]

open access: yes, 2016
There is a growing global interest in maximising the re-use and recycling of waste, to minimise the environmental impacts associated with waste treatment and disposal.
Abreu   +232 more
core   +2 more sources

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