Publication result detail

Mixing of different particle-size fractions of fly ash to increase its activity in cement composites

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

Original Title

Mixing of different particle-size fractions of fly ash to increase its activity in cement composites

English Title

Mixing of different particle-size fractions of fly ash to increase its activity in cement composites

Type

Paper in proceedings (conference paper)

Original Abstract

Fly ash – residue from coal burning process in power plants have been used as an active additive in concrete since middle of nineteenth century. Nowadays, we are trying to maximize its reactivity in cement composites by several methods. One of the methods is mechanical activation by mixing several size fractions to reach ideal particle size distribution. Ideal particle size distribution of fine components in cement composites helps to reach maximal compactness and thus increases strength and durability. In this paper we present results of compressive and tensile strength of cement-fly ash mortars with mixing 3 size fractions origins in 3 electrostatic precipitators from power plant Tušimice. Fly ashes from 1st precipitator, 2nd precipitator and 3rd precipitator were mixed with ration 10:4:1, 5:4:1 a 0:4:1.

English abstract

Fly ash – residue from coal burning process in power plants have been used as an active additive in concrete since middle of nineteenth century. Nowadays, we are trying to maximize its reactivity in cement composites by several methods. One of the methods is mechanical activation by mixing several size fractions to reach ideal particle size distribution. Ideal particle size distribution of fine components in cement composites helps to reach maximal compactness and thus increases strength and durability. In this paper we present results of compressive and tensile strength of cement-fly ash mortars with mixing 3 size fractions origins in 3 electrostatic precipitators from power plant Tušimice. Fly ashes from 1st precipitator, 2nd precipitator and 3rd precipitator were mixed with ration 10:4:1, 5:4:1 a 0:4:1.

Keywords

activation of fly ash, particle size distribution

Key words in English

activation of fly ash, particle size distribution

Authors

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

RIV year

2017

Released

19.02.2014

Book

Advanced Materials Research

ISBN

1022-6680

Periodical

Advanced Materials Research

Volume

2014

Number

XI

State

Swiss Confederation

Pages from

297

Pages to

300

Pages count

4

BibTex

@inproceedings{BUT104266,
  author="Denisa {Jančaříková} and Rudolf {Hela} and Alexandra {Rybová} and Petr {Novosad} and Jaroslav {Válek}",
  title="Mixing of different particle-size fractions of fly ash to increase its activity in cement composites",
  booktitle="Advanced Materials Research",
  year="2014",
  journal="Advanced Materials Research",
  volume="2014",
  number="XI",
  pages="297--300",
  doi="10.4028/www.scientific.net/AMR.897.297",
  issn="1022-6680"
}