The phase composition study of hydraulic binder prepared from calcined clay, anhydrite and lime

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43928416" target="_blank" >RIV/60461373:22310/23:43928416 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22810/23:43928416

Result on the web

<a href="http://dx.doi.org/10.14644/EC2023.008" target="_blank" >http://dx.doi.org/10.14644/EC2023.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14644/EC2023.008" target="_blank" >10.14644/EC2023.008</a>

Result language

angličtina

Original language name

The phase composition study of hydraulic binder prepared from calcined clay, anhydrite and lime

Original language description

Nowadays, when the emphasis is on ecology and reduction of CO2 emissions, the preparation of anew hydraulic binder that could at least partially replace the high-emission Portland cement isbecoming a topical issue. This work deals with phase composition study of the new hydraulic bindercreated from metakaolin calcined clay, anhydrite II and lime. A number of pastes with varyingcomposition were prepared. After raw material characterization, the phase composition was measuredusing X-ray diffraction with evaluation after 28 and 180 days. It was found that after 28 days the maincrystalline binder phase was ettringite, further, the samples contained high proportion of amorphousphase and smaller amount of anhydrite, portlandite, calcite and quartz. After 180 days, two newphases stratlingite and gypsum were detected in percent units. Nevertheless, it was clear that thesulfocalcic binder is stable from the point of view of the phase composition in the monitored time of180 days, and with an optimal composition it reaches a compressive strength of up to 80 MPa.

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

45-50

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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