Zobrazeno 1 - 10 of 34 pro vyhledávání: '"J. Szwabowski"'
1
Stability of Air-content in the Case of Innovative Air-entraining Portland Multicomponent Cement
Autor: Beata Łaźniewska-Piekarczyk, J. Szwabowski
Publikováno v: Procedia Engineering. 108:559-567
The research results of the stability of air-entrainment in the case of innovative air-entraining multi-component CEM II/B-V are presented in this paper. Compatibility with innovative cement air-entraining CEM II/B-V plasticizers and superplasticizer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8899ce134a36f4d3304eecd6f6ddefd
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2
AIR-ENTRAINMENT PROBLEM IN SELF-COMPACTING CONCRETE
Autor: Beata Lazniewska-Piekarczyk, J. Szwabowski
Publikováno v: Journal of Civil Engineering and Management, Vol 15, Iss 2 (2009)
Journal of Civil Engineering and Management; Vol 15 No 2 (2009); 137-147
According to the actual state of knowledge and in accordance with the PN‐EN 2006–1 norm, it is recommended to use air‐entrainment as a basic way of assuring frost‐resistance of concrete. In case of self‐compacting concrete (SCC), achieving
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a6de3a25b3b81aeeda79bb0b423e7d9
https://doi.org/10.3846/1392-3730.2009.15.137-147
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3
Influence of ageing process on porosity changes of the external plasters
Autor: S. Gil, J. Szwabowski, Jerzy Bochen
Publikováno v: Cement and Concrete Composites. 27:769-775
In recent time more and more attention has been paid to the durability problems of building materials and components. The key issue in this area is to define the service life. Therefore, useful methods for durability valuation are of prime importance
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::309cbfa4d173119b7c077b73d8724878
https://doi.org/10.1016/j.cemconcomp.2005.01.003
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4
Influence of superplasticizers on rheological behaviour of fresh cement mortars
Autor: Jacek Gołaszewski, J. Szwabowski
Publikováno v: Cement and Concrete Research. 34:235-248
To assure required workability of high performance concrete (HPC), various superplasticizers are used. Only by using superplasticizers can rheological properties of HPC mix be adequately adjusted to the methods and conditions of concrete processing.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12285b890f27b0b8c14ee6bb5b662b50
https://doi.org/10.1016/j.cemconres.2003.07.002
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6
Pozzolanic properties of a variety of European clay bricks
Autor: H. Hansen, S. Wild, L. Pederson, J. Szwabowski, A. Gailius
Publikováno v: Building Research & Information. 25:170-175
Clay bricks from Britain, Denmark, Lithuania and Poland have been ground up, investigated and analysed for particle size distribution, chemical composition, mineralogical content and strength. The ground brick types have also been used to partially r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1bdc95ad63dd86ba30c2a95027b01489
https://doi.org/10.1080/096132197370435
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7
The influence of the type of anti-foaming admixture and superplasticizer on the properties of self-compacting mortar and concrete
Autor: J. Szwabowski, Beata Łaźniewska-Piekarczyk
Publikováno v: Journal of Civil Engineering and Management; Vol 18 No 3 (2012); 408-415
Journal of Civil Engineering and Management, Vol 18, Iss 3 (2012)
To prevent excessive air entrainment, superplasticizers (SPs) should not only be compatible with cement, but also should not create the air-entraining effect in mortar. In order to counteract excessive air entrainment, anti-foaming admixtures (AFAs)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9edff5339f8fc0f4fb7bcedcaf3141cf
http://journals.vgtu.lt/index.php/JCEM/article/view/4465
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8
Anti-foaming admixture (AFA) and its influences on the properties of a fresh self-compacting concrete mix / Priešpučio (AFA) įtaka susitankinančio betono mišinio savybėms
Autor: Beata Łaźniewska-Piekarczyk, J. Szwabowski
Publikováno v: Journal of Civil Engineering and Management; Vol 18 No 2 (2012); 151-157
Journal of Civil Engineering and Management, Vol 18, Iss 2 (2012)
The properties of a concrete mix should secure the self-elimination of needless air bubbles from its volume. What is interesting, these properties are not taken into consideration in commonly used self-compacting tests. On the basis of different test
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2a89470d3ac6b32a567c55989ca0e9f
http://journals.vgtu.lt/index.php/JCEM/article/view/4432
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10
INFLUENCE OF CEMENT AND SUPERPLASTICIZER ON RHEOLOGICAL PROPERTIES OF MORTARS
Autor: Jacek Gołaszewski, J. Szwabowski
Effectiveness of superplasticizer is an effect of complex system of factors connected mainly with concrete components properties, concrete composition and concreting conditions. From among these factors the key role for the superplasticizer effective
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6690da036884c8bcc875d01dabc05dfa
https://doi.org/10.1533/9780857093103.339
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