Results 91 to 100 of about 25,921 (279)

Long term durability properties of concrete modified with metakaolin and polymer admixture [PDF]

open access: yes, 2018
Previous studies show that both metakaolin (MK) and polymer can respectively improve certain mechanical and durability properties of concrete. Also, recent studies show that a combination of MK and polymer further enhances the mechanical properties by ...
Al Menhosh, A   +3 more
core   +1 more source

Clays for Low‐Carbon Cements: Overview, Progress, and Challenges

open access: yesGlobal Challenges, Volume 10, Issue 1, January 2026.
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Imane Koufany   +4 more
wiley   +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

Predicting compressive strength of different geopolymers by artificial neural networks [PDF]

open access: yes, 2013
In the present study,six different models based on artificial neural networks have been developed to predict the compressive strength of different types of geopolymers.The differences between the models were in the number of neurons in hidden layers and ...
Nazari, A., Pacheco-Torgal, F.
core   +1 more source

Mitigation of Restrained Plastic Shrinkage Cracks in Concrete: A Systematic Review on the Role of Chemical Admixtures

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Plastic shrinkage cracks are a major concern in concrete structures, arising from rapid moisture loss before the development of adequate tensile strength. These cracks compromise durability, increase permeability, and accelerate structural deterioration.
Abidemi Bashiru Folorunsho   +3 more
wiley   +1 more source

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

The influence of the fineness of metakaolin on the properties of self-compacting underwater concrete

open access: yesBudownictwo i Architektura, 2014
The paper presents the research results of the influence of metakaolin of different fineness that is applied as a microfiller (20% of the cement mass) on the properties of self-compacting underwater concrete.
Stefania Grzeszczyk, Krystian Jurowski
doaj   +1 more source

Nanostructural characterization of geopolymers by advanced beamline techniques [PDF]

open access: yes, 2013
This paper presents the outcomes of a series of beamline-based studies, the results of which are combined to provide a more detailed multiscale understanding of the structure and chemistry of geopolymer binders.
Bernal, S.A.   +9 more
core   +1 more source

Characterization and Fabrication of Metakaolin using Pulau Bangka Kaolin

open access: yesE3S Web of Conferences, 2018
Geopolymer material is an advanced material that is now being looked for its use as a refractory material, additive for building material, as well as other applications. Geopolymer is produced by polymerizing the precursor used in the process. One of the
Astutiningsih Sotya   +2 more
doaj   +1 more source

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