Pozzolanic activity of low-quality clays by Frattini test

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43928418" target="_blank" >RIV/60461373:22310/23:43928418 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22810/23:43928418

Result on the web

<a href="http://dx.doi.org/10.14644/EC2023.009" target="_blank" >http://dx.doi.org/10.14644/EC2023.009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14644/EC2023.009" target="_blank" >10.14644/EC2023.009</a>

Result language

angličtina

Original language name

Pozzolanic activity of low-quality clays by Frattini test

Original language description

Cement is one of the most used material in the world, including the Czech Republic. Its role in theconstruction industry is irreplaceable, but its production contributes to 5-8% of global CO2 emissions.One of the possibilities to reduce the amount of emissions is the production of blended cements thatcontain pozzolans, such as fly ash, slag, microsilica and, recently, the increasingly discussed calcinedclays. The work was focused on the characterization and study of the pozzolanic activity of “lowquality”overburden clays from the Bílina lignite mine in the Czech Republic. A very variablecomposition of clays was found from the point of view of XRD analysis, while the amount ofkaolinite in the 9 investigated samples was in the range of 5-20 wt.% and the amorphous phase was inthe range of 23-63 wt.%. By calcination the clays at a temperature of 850°C, it was found that allcalcined clays reliably exhibit pozzolanic properties using the Frattini test. By lowering the firingtemperature to 650°C, the pozzolanic activity of some samples decreased significantly.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/FW01010195" target="_blank" >FW01010195: Advanced and inovative processing technologies for strategic utilization and storing of coal combustion products (CCPs)</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Conference Proceedings - International Conference of European Clay Groups Association – EUROCLAY2023

ISBN

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ISSN

2283-5954

e-ISSN

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Number of pages

6

Pages from-to

51-56

Publisher name

Digilabs

Place of publication

Bari

Event location

Bari

Event date

Jul 24, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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