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The Influence of Production Parameters on Pozzolanic Reactivity of Calcined Clays

Sammendrag

Calcined clays are gaining increasing interest as future supplementary cementitious materials for the production of blended cements. Besides the mineralogy, the right production conditions can affect the pozzolanic activity of calcined clays. In this paper, the pozzolanic reactivity of two calcined natural clays in dependence of burning temperature, residence time in the furnace, cooling conditions and particle size of the final product is investigated. The highest pozzolanic reactivity was found at calcination temperatures between 600 and 800°C. While different cooling conditions had no identified effect on reactivity, decreased particle size and residence time increased the reactivity.
Les publikasjonen

Kategori

Vitenskapelig artikkel

Språk

Engelsk

Institusjon(er)

  • SINTEF Community / Arkitektur, byggematerialer og konstruksjoner

Dato

15.10.2018

År

2018

Publisert i

Nordic Concrete Research

ISSN

0800-6377

Årgang

59

Hefte nr.

2

Side(r)

1 - 12

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