Results 1 to 10 of about 12,404 (205)

Structural, Morphological, Thermal and Mechanical Study of a Geopolymer Based on Metakaolin Mixed with Oujda Clay

open access: yesEngineering Proceedings
This study investigated a metakaolin-based geopolymer blended with Oujda clay, replacing 5–15 wt% of metakaolin (MK) and is focused on structural, thermal stability, and microstructural changes in the geopolymer pre- and post-high temperature exposure ...
Youssef Bachirat   +2 more
doaj   +1 more source

Optical Properties Characterization of TiO₂-Metakaolin Composites Synthesized by the Sol-Gel Method

open access: yesJurnal Kimia Sains dan Aplikasi
Titanium dioxide (TiO2) is a semiconductor known for its excellent optical properties and is widely used in various applications. In this study, TiO2-Metakaolin composites were synthesized to investigate the optical properties of TiO2-Metakaolin in ...
Berlian Sitorus   +2 more
doaj   +1 more source

The physico-mechanical influence of dehydroxylized activated local kaolin: A supplementary cementitious material for construction applications

open access: yesCase Studies in Construction Materials, 2020
This work presents the effect of partially replacing metakaolin with Portland limestone cement to produce mortars for construction. Teleku Bokazo kaolin was explored as a SCM in the production of mortars.
Kwame K. Marfo   +9 more
doaj   +1 more source

Sustainable Materials for Transportation Infrastructures: Comparison of Three Commercially-Available Metakaolin Products in Binary Cementitious Systems

open access: yesInfrastructures, 2018
Metakaolin is the only major natural pozzolan to be specified for use as a supplementary cementitious material in the United States. As a result, the metakaolin market for concrete has grown dramatically in the past 20 years.
Matthew S. Sullivan   +4 more
doaj   +1 more source

Effect of the Use of Metakaolin Artificial Lightweight Aggregate on the Properties of Structural Lightweight Concrete

open access: yesCivil Engineering Dimension, 2017
This paper investigates the effect of using metakaolin Artificial Lightweight Aggre­gates (ALWA) as a substitute for coarse aggregates to produce structural lightweight concrete. A combination of 10M NaOH solution and sodium silicate solution was used as
Puput Risdanareni   +3 more
doaj   +3 more sources

Evaluation of the Pozzolanic Activity of Metakaolin, Glass Powder and Silica Powder for Use in Cementitious Mortars

open access: yesStudia Universitatis Babes-Bolyai Chemia
The objective of this study is to evaluate the pozzolanic activity of metakaolin, glass powder and silica powder for use in cementitious mortars. Thus, metakaolin was produced by calcination at 700 °C of a clay soil from Burkina composed of kaolinite ...
Issiaka SANOU   +4 more
doaj   +1 more source

Frost resistance and micro mechanism of metakaolin and polypropylene fiber modified coastal cement soil

open access: yesJournal of Materials Research and Technology
In order to investigate the effects of metakaolin and polypropylene (PP) fiber on the macroscopic mechanical properties and microscopic mechanisms of cement soil subjected to freeze-thaw cycles, a series of unconfined compressive strength (UCS) and ...
Xukun Ma   +7 more
doaj   +1 more source

Effect of Calcination Temperatures of Kaolin on Compressive and Flexural Strengths of Metakaolin-Concrete

open access: yesNigerian Journal of Technological Development, 2023
The incorporation of pozzolanic materials in concrete construction is progressively increasing. This is due to technological advancement and climate change problems associated with carbon emissions resulting from the large-scale manufacturing of cement ...
Yetunde Abiodun   +2 more
doaj  

A novel method for evaluating bonding performance and mechanical properties of steel fiber concrete containing metakaolin [PDF]

open access: yesمهندسی و مدیریت ساخت
In recent years, metakaolin is used in concrete to improve the short-term and long-term properties of concrete. Considering the importance of compressive strength and bonding between concrete and rebar in reinforced concrete structures, a new method for ...
Seyed Mohammad Farnam   +3 more
doaj  

An investigation on mechanical properties and durability of metakaolin reinforced modified recycled concrete

open access: yesCase Studies in Construction Materials
This study examined the impact of various combinations of metakaolin and 15% fly ash mix (M) on the mechanical properties and durability of recycled fine aggregate concrete (RFAC), aiming to enhance the properties, cost-effectiveness, and sustainability ...
Chuheng Zhong   +5 more
doaj   +1 more source

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