Hydration of blended cement pastes containing waste ceramic powder as a function of age
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00301104" target="_blank" >RIV/68407700:21110/16:00301104 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4955256" target="_blank" >http://dx.doi.org/10.1063/1.4955256</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4955256" target="_blank" >10.1063/1.4955256</a>
Alternative languages
Result language
angličtina
Original language name
Hydration of blended cement pastes containing waste ceramic powder as a function of age
Original language description
The production of a cement binder generates a high amount of CO2 and has high energy consumption, resulting in a very adverse impact on the environment. Therefore, use of pozzolana active materials in the concrete production leads to a decrease of the consumption of cement binder and costs, especially when some type of industrial waste is used. In this paper, the hydration of blended cement pastes containing waste ceramic powder from the Czech Republic and Portland cement produced in Argentina is studied. A cement binder is partially replaced by 8 and 40 mass% of a ceramic powder. These materials are compared with an ordinary cement paste. All mixtures are prepared with a water/cement ratio of 0.5. Thermal characterization of the hydrated blended pastes is carried out in the time period from 2 to 360 days. Simultaneous DSC/TG analysis is performed in the temperature range from 25 °C to 1000 °C in an argon atmosphere. Using this thermal analysis, we identify the temperature, enthalpy and mass changes related to the liberation of physically bound water, calcium–silicate–hydrates gels dehydration, portlandite, vaterite and calcite decomposition and their changes during the curing time. Based on thermogravimetry results, we found out that the portlandite content slightly decreases with time for all blended cement pastes.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
THERMOPHYSICS 2016: 21ST INTERNATIONAL MEETING
ISBN
978-0-7354-1410-5
ISSN
0094-243X
e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
AIP Publishing, APL, the American Institute of Physics
Place of publication
Melville, NY
Event location
Terchová
Event date
Oct 12, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000380816400028