Effect of Gamma Irradiation on Pore -Space of Hardened Cement Paste

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00198816" target="_blank" >RIV/68407700:21110/12:00198816 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of Gamma Irradiation on Pore -Space of Hardened Cement Paste
Original language description
Hardened cement paste (HCP) has been exposed to ?-irradiation up to a dose of 1 MGy and then the changes of properties of the porous space were studied by mercury porosimetry and adsorption of nitrogen. It was found that the concentration of nanopores inthe hardened cement paste increases and the concentration of pores with a diameter in the range of 10 - 50 nm decreases due to ?-irradiation. The most significant change induced by irradiation is the specific pore area A and AM. It can be interpreted ascoarsening of an originally smooth surface of the pores. It corresponds to our hypothesis of so-called "radiation carbonation" of the HCP: the crystals of calcite growing during the carbonation decrease diameter of the pores and increase their surface.There is, however, another hypothesis about the effect of ?-irradiation on HCP: the ?-irradiation causes the radiolysis of water and this leads to drying of samples and can there- fore result in the shrinkage of HCP. Our experiments reall
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
DEVELOPMENT OF MATERIALS SCIENCE IN RESEARCH AND EDUCATION
ISBN
978-80-260-2357-9
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
67
Publisher name
Czechoslovak Association for Crystal Growth
Place of publication
Prague
Event location
Lednice
Event date
Sep 3, 2012
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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