Results 61 to 70 of about 12,404 (205)
Structural Concrete, EarlyView.Abstract The increasing use of recycled aggregate concrete (RAC) offers significant environmental benefits by reducing construction and demolition waste; however, its fracture performance and damage evolution under elevated temperatures remain insufficiently understood, particularly when recycled aggregates are derived from metakaolin modified parent ...
Zubair Yousuf, Viktor Hlavička
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT The materiality of the white pigment motif at the Cloggs Cave rockshelter, near Buchan in GunaiKurnai Country (southeastern Australia), contains details about the cultural and environmental contexts in which the art was created and preserved. Here, we (1) present physicochemical analyses of the pigment composition; (2) explore implications for
Courtney Webster +8 more
wiley +1 more source
Structural behaviour of metakaolin infused concrete structure [PDF]
, 2017 This work researched into the use of metakaolin as a partial substitute for cement in concrete, metakaolin was obtained by the calcination of kaolin clay to about 700 0C Cement was replaced with the metakaolin at 0, 5, 10, 15, 20, 25, 30, and 35% at ...
Famoye, A. A. +3 more
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Carbonation of Blended Binders Containing Metakaolin
, 2015 WOS:000380463000004International audienceThe pozzolanic materials are often recommended for their very good durability in aggressive environment. Unfortunately, this is not always true and particularly in the case of carbonation by the atmospheric CO2 ...
Escadeillas, Gilles +2 more
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Water and Environment Journal, EarlyView.This review examines the physicochemical properties of geopolymers, focusing on the effects of calcium content, heavy metal impurities and acid activation. It distinguishes geopolymers from other alkali‐activated materials based on structure and synthesis precursors. Their use as water treatment adsorbents is compared with ceramic filters, highlighting
Kabelo L. Lebogang +3 more
wiley +1 more source
Journal of the American Ceramic Society, Volume 109, Issue 11, November 2026.ABSTRACT Metakaolin‐based geopolymers are candidate binders for refractory and fire‐resistant components because they combine ceramic‐like thermal stability with low‐temperature processing. Their use is still restricted by a trade‐off: Formulations that develop high strength shrink substantially near 800°C, while formulations that remain dimensionally ...
Maria Fernanda Dornelles Howes +6 more
wiley +1 more source
Effects of metakaolin and silica fume on properties of concrete
, 2002 Metakaolin is a relatively new mineral admixture for concrete. It is comparable to silica fume in pozzolanic reactivity, but is lower in price. The effects of metakaolin and silica fume on various properties of concrete were investigated and compared in ...
Ding, Jian Tong, Li, Zongjin
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Journal of the American Ceramic Society, Volume 109, Issue 11, November 2026.ABSTRACT Conventional Portland cement production is associated with substantial carbon emissions, while the utilization of off‐specification fly ash (FA), particularly high‐CaO FA, remains challenging due to its variable composition and limited reactivity.
Xing Cheng +6 more
wiley +1 more source
Metakaolin as a cement extender [PDF]
, 1996 The effect of 10% and 20% replacement metakaolin on a number of aspects of hydration chemistry and service performance of ordinary Portland cement pastes has been investigated. The analysis of expressed pore solutions has revealed that metakaolin-blended specimen pastes possess enhanced chloride binding capacities and reduced pore solution pH values ...
openaire +1 more source
Metakaolin Effects on Concrete Durability [PDF]
, 2010 Partial replacement of cement by metakaolin is known to improve concrete durability, by refining the pore structure to improve fluid transport properties and by reducing the alkalinity of the pore solution to make ASR less problematic.
Zeljkovic, J. Michael
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