The synthesis and characterisation of an expansive additive for M-type cements. Part II. Investigation of shrinkage compensation effect during early stages of hydration process
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F12%3APU100887" target="_blank" >RIV/00216305:26310/12:PU100887 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The synthesis and characterisation of an expansive additive for M-type cements. Part II. Investigation of shrinkage compensation effect during early stages of hydration process
Original language description
The expansion effect of laboratory-prepared expansive additives for M-type expansive cement was investigated at the early stage of hydration by the multicell isoperibolic calorimeter and volumetric technique based on Archimedes principle. The relative volume changes and heat released during hydration are strongly affected by the content of lime in the expansive additive due to the influence of CaO on the kinetics and mechanism of formation of ettringite. The increasing content of lime favours the formation of monosulphate and its later transformation to ettringite generating expansion stress. The effect of expansive additive on the behaviour of mortar samples was measured as linear elongation of test blocks using Graf-Kaufman dilatometer. Lower or higher content of lime in expansion additive slightly decreases the 7th-day compressive and flexural strength of samples while this effect is negligible for expansive additive with nominal composition of ettringite.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED0012%2F01%2F01" target="_blank" >ED0012/01/01: Centres for materials research at FCH BUT</a><br>
Continuities
O - Projekt operacniho programu
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Thermal Analysis and Calorimetry
ISSN
1388-6150
e-ISSN
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Volume of the periodical
2012
Issue of the periodical within the volume
10
Country of publishing house
HU - HUNGARY
Number of pages
6
Pages from-to
1-6
UT code for WoS article
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EID of the result in the Scopus database
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