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HELA, R. BODNÁROVÁ, L.
Original Title
Light-weight self-compacting fibre-reinforced concrete
Type
conference paper
Language
English
Original Abstract
The article deals with self-compacting concrete mix-design with light-weight aggregate Liapor for strength class LC 25/28, D 1.6 and mix-design with light-weight aggregate Liapor combined with natural aggregate for class LC 40/44, D 1.8. These mix-designs were tested with synthetic fibres Chryso Fibre S50 in the amount of 1, 4 and 8 kg/m3 and steel fibres 20 mm in the amount of 25 kg/m3. Rheological properties were experimentally tested by means of Slump test, Orimet, J-Ring and L-Box immediately after mixing and at time intervals of 60 and 90 minutes after mixing. Volumetric changes including development of temperature of fresh concrete were measured for 7 days from the time of placing. Physico-mechanical properties of hardened concrete were observed - compressive strength after 7 and 28 days, tensile bending strength after 28 days, static and dynamic elastic modules, frost resistance, surface resistance to water and defrosting chemicals.
Keywords
Light-weight self-compacting fibre-reinforced concrete; self-compacting concrete; light-weight aggregate; rheological properties; physico-mechanical properties;
Key words in English
Authors
HELA, R.; BODNÁROVÁ, L.
RIV year
2007
Released
1. 9. 2007
Publisher
ČVUT Praha
Location
Praha
ISBN
978-80-01-03740-9
Book
Fibre concrete 2007
Edition
1
Edition number
Pages from
61
Pages to
67
Pages count
7
BibTex
@inproceedings{BUT25545, author="Rudolf {Hela} and Lenka {Bodnárová}", title="Light-weight self-compacting fibre-reinforced concrete", booktitle="Fibre concrete 2007", year="2007", series="1", number="1", pages="61--67", publisher="ČVUT Praha", address="Praha", isbn="978-80-01-03740-9" }