Results 21 to 30 of about 7,231 (151)

Analysis of Durability and Hydration Characteristics of Metakaolin Concrete

open access: yesKuangchan zonghe liyong, 2022
In order to obtain the effects of different amounts of metakaolin on the physical, mechanical properties and hydration characteristics of concrete, basic physical and mechanical tests of metakaolin concrete and concrete hydration performance tests were ...
Bo Ning, Miaomiao Liu, Wenfei Wang
doaj   +1 more source

Effect of mixing metakaolins: Methodological approach to estimate metakaolin reactivity

open access: yesCeramics International, 2023
International audience ; Geopolymers are obtained from an alkali silicate solution and aluminosilicate sources. The source commonly used geopolymer is metakaolin. The chemical composition, extraction site or calcination process of metakaolin influence its reactivity and thus the properties of the consolidated samples.
W. N'cho   +5 more
openaire   +2 more sources

Synergic effect of metakaolin and groundnut shell ash on the behavior of fly ash-based self-compacting geopolymer concrete [PDF]

open access: yes, 2021
The sustainable self-compacting geopolymer concrete (SCGC) production is an eco-efficient concrete with a lower carbon footprint than conventional concrete.
Tafsirojjaman, T.   +5 more
core   +1 more source

Improving the engineering properties of sustainable recycled aggregate concrete modified with metakaolin

open access: yesCase Studies in Construction Materials, 2023
This study investigates the potential of metakaolin as a mineral admixture to enhance the performance of concrete mixtures with varying proportions of recycled aggregates (RA).
Khaled Mohamed Elhadi   +7 more
doaj   +1 more source

EFFECT OF USING METAKAOLIN ON FRESH AND HARD CONCRETE MIXES [PDF]

open access: yesJournal of Environmental Science, 2023
Cement industry account for 5-8% of worldwide CO2 emission. To reduce the environmental impact of cement industries metakaolin and other pozzolanic materials are used to replace part of cement.
Ahmed A. Darweesh   +2 more
doaj   +1 more source

Study on Deformation Characteristics and Damage Model of NMK Concrete under Cold Environment

open access: yesBuildings, 2022
To improve the ability of concrete structures to resist freeze-thaw damage in cold environments, explore the effect and mechanism of nano-metakaolin (NMK) on frost resistance of concrete.
Shiyi Zhang   +2 more
doaj   +1 more source

Evaluating properties of high performance concrete containing metakaolin as cementitious material

open access: yes, 2022
High performance concrete is extensively used for construction works in recent era. For the preparation of high performance concrete (HPC) mineral and chemical admixtures are used.
V Deo, Shirish   +5 more
core   +1 more source

Microstructural characterization and adsorption properties of alkali-activated materials based on metakaolin [PDF]

open access: yesScience of Sintering, 2016
The microstructural characterization and adsorption properties of metakaolin (MK) and alkali-activated metakaolin, known as geopolymer materials (GP) were investigated.
Trivunac Katarina   +6 more
doaj   +1 more source

Effect of Metakaolin on Properties of Lightweight Porcelinate Aggregate Concrete

open access: yesJournal of Engineering, 2023
Research in Iraq has expanded in the field of material technology involving the properties of the lightweight concrete using natural aggregate. The use of the porcelinate aggregate in the production of structural light concrete has a wide objective and
Nada M. Fawzi   +2 more
doaj   +1 more source

Effects of Si/Al Ratios on the Bulk-Type Zeolite Formation Using Synthetic Metakaolin-Based Geopolymer with Designated Composition

open access: yesCrystals, 2021
In this paper, synthetic metakaolin with fixed composition (Al2O3·2SiO2) was produced by a simple chemosynthetic route. The chemosynthetic metakaolin can eliminate the influence of impurities in metakaolin from natural kaolin minerals.
Guoru Ma   +3 more
doaj   +1 more source

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