Publication detail

Ready mixed self compacting concrete

HELA, R. HUBERTOVÁ, M.

Original Title

Ready mixed self compacting concrete

Type

conference paper

Language

English

Original Abstract

The paper describes a development and use of lightweight self-compacting concrete (LWSCC) using artificial lightweight aggregate based on burnt clay for coarse fraction of aggregate for transported ready mix concrete. The ability to produce lightweight structural self-compacting concrete of volume weight between 1600 and 1800 kg.m-3 and strength around 40 N.mm-3 shows new ways of development and use of SCC. The paper describes mixtures and methods for testing rheological properties of fresh concretes to fulfill parameters of self-compacting including description of testing apparatus and parameters. Different versions of mixtures are mentioned with sufficient physico-mechanical properties of hardened concrete - compression strength, tensile bending strength, static elastic modulus and freeze resistance using artificial light weight aggregate and active admixtures based on secondary raw materials (fly ash and other active admixtures - metakaolin, micro-silica). Problems of water-absorbing capacity of lightweight aggregate (up to 40%) are dealt with as well as problems of keeping stable consistency for 90 minutes time. In the conclusion, practical application of SCC lightweight floor structures are presented.

Keywords

self compacting concrete, lightweight concrete, porrous aggregate

Authors

HELA, R.; HUBERTOVÁ, M.

RIV year

2007

Released

26. 9. 2007

Publisher

Talylor&Francis London

Location

Melbourne

ISBN

978-0-415-45754-5

Book

Innovations in Structural Engineering and Construction

Edition

1

Edition number

1

Pages from

477

Pages to

483

Pages count

7

BibTex

@inproceedings{BUT27817,
  author="Rudolf {Hela} and Michala {Hubertová}",
  title="Ready mixed self compacting concrete",
  booktitle="Innovations in Structural Engineering and Construction",
  year="2007",
  series="1",
  number="1",
  pages="477--483",
  publisher="Talylor&Francis London",
  address="Melbourne",
  isbn="978-0-415-45754-5"
}