Pore structure analysis of Portland cement and blended Portland cements cured under hydrothermal conditions cements cured under hydrothermal conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F14%3APU110441" target="_blank" >RIV/00216305:26310/14:PU110441 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1000.235" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMR.1000.235</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1000.235" target="_blank" >10.4028/www.scientific.net/AMR.1000.235</a>
Alternative languages
Result language
angličtina
Original language name
Pore structure analysis of Portland cement and blended Portland cements cured under hydrothermal conditions cements cured under hydrothermal conditions
Original language description
The pore structure of Portland cement pastes cured under different hydrothermal regimes was analyzed. Pore size distribution (PSD), hydraulic permeability coefficient (HK) and porosity (P) were found depending on temperature and steam pressure. With increasing hydrothermal characteristics, the pore structures degraded causing the depletion in compressive strength. Then, blast furnace slag (BFS) and silica fume (SF) were added to PC and cured under similar conditions. It was found that the pore structure was greatly improved. The effect of hydrothermal curing may be interpreted by the intensity and position of the peak, by the length and bimodal characteristic of PSD. The maximum concentration of pores of reference cement paste lies in the range 10 – 103 nm, and changes progressively to the size < 10 nm with increasing addition of BFS and SF. This behavior is attributed mainly to the presence of SF. Microstructure analysis shows hydrate products like needle CSH and CASH, which were stable under hydrothermal curing.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
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
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Ecology and New Building Materials and Products
ISBN
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ISSN
1022-6680
e-ISSN
1662-8985
Number of pages
4
Pages from-to
235-238
Publisher name
Neuveden
Place of publication
Neuveden
Event location
Čerá Hora
Event date
Jun 3, 2014
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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