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Wyszukujesz frazę "cement binder" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Use of admixture effectiveness curves for prediction of the compressive strength of concrete
Autorzy:
Grzybowska, A.
Mrozik, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/298128.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
additive
cement paste
low water-binder ratio
effectiveness curve
Opis:
This paper presents the results of individual laboratory tests conducted in the Research and Experiment Facility of the University of Science and Technology in Bydgoszcz, in particular of tests conducted on pastes of low water-binder ratios (from 0.2 to standard water demand (Mrozik 2012)). The purpose of this document is to examine the effect of the applied admixtures (plasticizer or superplasticizer) and its amount on the bulk density of a cement paste, thus on the compressive strength of concrete (as shown in the paper (Neville 2012), properties of concrete can be estimated on the basis of pastes). Conclusions concerning the suitability of specific amounts of plasticisers and superplasticizers were formulated and effectiveness curves were established on the basis thereof.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2018, 21(3); 175-182
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of fine waste material for the future of sustainable construction
Autorzy:
Kalinowska-Wichrowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/298403.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
cement composites
recycling binder
physical properties of concretes
mechanical properties of concretes
Opis:
The article presents data regarding scale of current production of cement and its future of sustainable construction. In the time of sustainability and Union Directives which rightly impose the reduction of emission of greenhouse gases the solution has been proposed that may in some extent contribute to reducing the cement consumption by using properly prepared recycling binder as its substitute. Some results of own research have been presented, connected with the possibility of using the waste material in form of properly processed cement grout as a partial substitute of cement in the cement composites. Due to high content of contaminants in the industrial secondary binder, which might interfere with the uniformity of results, it has been decided to obtain the recycling binder in the laboratory conditions. The secondary mineral material has been obtained in the process of multi-stage disintegration of prepared laboratory samples, made from cement grouts. The prepared material has been analysed for content of dust fraction and pozzolana activity. The obtained results have revealed that in assumed conditions of recycling binder processing it may be successfully used as cement substitute in the cement composites.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2018, 21(2); 149-156
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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