Results 61 to 70 of about 2,147 (208)

A new ingredient to improve Chinese traditional hydraulic lime and its assessment on stone heritage conservation

open access: yesHeritage Science
Ginger nut, AGA soil, and shell lime are the primary building limes used in traditional Chinese architectural sites. They have been widely researched and developed for restoring rock and soil heritage over the last decade.
Weichang Chen, Li Li
doaj   +1 more source

Removal of Natural Organic Matter Fractions by Kaolin/Fly Ash Ceramic Microfiltration Membrane in Drinking Water: Insights from a Laboratory Scale Application

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 8, April 21, 2025.
The prepared ceramic membrane exhibited 28.84 µm average pore size and hydrophilic properties (≈27.4° contact angle). FTIR shows the presence of aluminol, siloxane, and hydroxyl groups and XRD confirms the presence of quartz and kaolinite phases. Separation of natural organic matter from drinking water is achieved by microfiltration at 0.25 bar and is ...
Samkeliso S. Ndzimandze   +5 more
wiley   +1 more source

Characterization and thermal behavior of some types of kaolin of different origin from Northern Vietnam

open access: yesГорные науки и технологии
Kaolin (mainly composed of kaolinite, whose chemical formula is Al2Si2O5(OH)4), serves as a versatile raw material widely used in various industries including production of ceramics, paper, paints, cosmetics, pneumatics, building materials, and hazardous
T. T.T. Nguyen, H. B. Bui
doaj   +1 more source

Stability, reusability, and equivalent circuit of TiO2/treated metakaolinite-based dye-sensitized solar cell: effect of illumination intensity on V oc and I sc values

open access: yesMaterials for Renewable and Sustainable Energy, 2021
In this research, treated metakaolinite (TMK) was introduced into the TiO2 photoelectrode to fabricated dye-sensitized solar cells (DSSCs).
Winda Rahmalia   +5 more
doaj   +1 more source

Alkali-activated binders: a review: part 2. About materials and binders manufacture [PDF]

open access: yes, 2008
This paper summarizes current knowledge about alkali-activated binders, by reviewing previously published work. As it is shown in Part 1, alkali-activated binders have emerged as an alternative to (ordinary Portland cement) OPC binders, which seem to ...
Gomes, J. P. Castro   +2 more
core   +1 more source

Use of metakaolins from Eseka and Dibamba‐Cameroon as an optimization additive of CEM I Portland cement mortar

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 6, Issue 6, November 2024.
Abstract The present study deals with two kaolins from Eseka and Dibamba‐Cameroon to determine their potential suitability as additive of CEM I 42.5R and to optimize the properties of cement in the sense to promote low‐carbon cement. X‐ray diffractometry was used to establish the mineralogical composition of two kaolins.
Arlin Bruno Tchamba   +9 more
wiley   +1 more source

A new pozzolan for high performance cementitious materials

open access: yesMateriales de Construccion, 2000
This paper presents results on the physical and chemical properties of metakaolinite, MK which is prepared by dehydroxylation of high quality kaolinite. The properties of Portland cement mortars blended with MK additions up to 50% are investigated. These
R. M. de Gutiérrez   +2 more
doaj   +1 more source

Properties of ceramic membranes obtained from kaolinitic clay mixed with palm and mango wastes from Cameroon: Application to wastewater treatment from breweries

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 6, Issue 5, September 2024.
Develop new ceramic microfiltration and ultrafiltration membranes based on mixtures of low cost and locally available raw materials. Apply these membranes in wastewater treatment. They eliminate a very large number of dangerous ions found in polluted water.
Yacouba Mfomboum Kouotou   +7 more
wiley   +1 more source

Kaolin mining waste to produce geopolymers: Physicomechanical properties and susceptibility to efflorescence formation

open access: yesCase Studies in Construction Materials, 2022
The kaolin mining waste (KW) is a residue generated during the purification process of extracting high purity kaolin used in different industries. KW is mainly constituted by kaolinite-rich clay and other secondary minerals such as anatase and quartz ...
Márlon A. Longhi   +5 more
doaj   +1 more source

Application of augmented simplex‐centroïd mixture design in developing and optimizing new low‐cost microfiltration membranes from clays and cassava peels for bacteria removal

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 6, Issue 5, September 2024.
This work optimizes a less expensive ceramic membrane based on natural resources for use in water purification. The raw materials and membranes were characterized by appropriate analyses. The new ceramic microfiltration membrane was found to retain pathogenic micro‐organisms by over 90%.
Ibrahim Cherif Mountapbeme   +8 more
wiley   +1 more source

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