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LUKÁŠ, J. BRANDŠTETR, J. MELCHER, J. KRÁTKÝ, J. KARMAZÍNOVÁ, M. VYMAZAL, T. BÍLEK, V.
Original Title
Složení a vlastnosti některých typů vysokohodnotných a samozhutňujících betonů
English Title
The composition of some types of the high performance and self-compacting concrete
Type
journal article - other
Language
Czech
English abstract
The paper presents the composition and properties of some specialty types of concrete and steel-concrete structural parts possessing desired performance optimized for a given purpose. For the preparation of high-performance and self-compacting concretes, finely ground granulated blast furnace slag as a separate component was used to decrease the content of portlanc cement and thus the hydration heat, which consequently decreases the formation of microcracks. Polycarboxylate type superplasticizer makes it possible to lower the water/cement ratio under 0.35. As aggregate, the fused bauxite and especially ground basalt exhibiting high strengths was used. The properties of fresh and hardened concrete are significantly influenced by the kind and amount of microaggregate. Dense microstructure and low porosity enhances the corrosion resistance and long-term durability, which is one of the main requirements of the produced composites.
Authors
LUKÁŠ, J.; BRANDŠTETR, J.; MELCHER, J.; KRÁTKÝ, J.; KARMAZÍNOVÁ, M.; VYMAZAL, T.; BÍLEK, V.
Released
1. 6. 2003
ISBN
1212-0154
Periodical
Beton
Year of study
2003
Number
6
State
Czech Republic
Pages from
10
Pages to
13
Pages count
4
BibTex
@article{BUT43241, author="Josef {Lukáš} and Jiří {Brandštetr} and Jindřich {Melcher} and Josef {Krátký} and Marcela {Karmazínová} and Tomáš {Vymazal} and Vlastimil {Bílek}", title="Složení a vlastnosti některých typů vysokohodnotných a samozhutňujících betonů", journal="Beton", year="2003", volume="2003", number="6", pages="10--13", issn="1212-0154" }