Publication detail

Possible Synergism of High temperature Fly Ash and Fluidized Bed Combustion Fly Ash in Cement Composites

ORSÁKOVÁ, D. HELA, R. NOVOSAD, P. VÁLEK, J.

Original Title

Possible Synergism of High temperature Fly Ash and Fluidized Bed Combustion Fly Ash in Cement Composites

Type

journal article - other

Language

English

Original Abstract

One of the possibilities how to activate fly ash in cement composites is to add calcium oxide as a chemical activator. This addition can improve pH of composites. Because fluidized bed combustion (FBC) fly ash contain around 15% of calcium oxide, we decided to add FBC fly ash into binder system of cement composite with high temperature fly ash. Three mixtures were designed. First one contain in binder system only cement and high temperature fly ash. In second and third mixture was part (25% resp. 50%) of high temperature fly ash replaced by FBC fly ash. Consistency, shrinkage, compressive strength and freeze-thaw resistance were tested. Microstructure was detected by XRD and TG analyses.

Keywords

Fluidized bed combustion fly ash (FBC fly ash), fly ash from high temperature combustion (high temperature fly ash)

Authors

ORSÁKOVÁ, D.; HELA, R.; NOVOSAD, P.; VÁLEK, J.

RIV year

2015

Released

28. 1. 2015

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

1662-8985

Periodical

Advanced Materials Research (online)

Year of study

2015

Number

1106

State

Swiss Confederation

Pages from

29

Pages to

32

Pages count

4

BibTex

@article{BUT116347,
  author="Denisa {Jančaříková} and Rudolf {Hela} and Petr {Novosad} and Jaroslav {Válek}",
  title="Possible Synergism of High temperature Fly Ash and Fluidized Bed Combustion Fly Ash in Cement Composites",
  journal="Advanced Materials Research
 (online)",
  year="2015",
  volume="2015",
  number="1106",
  pages="29--32",
  doi="10.4028/www.scientific.net/AMR.1106.29",
  issn="1662-8985"
}