Detail publikačního výsledku

Observation and Experience of Using Mechanically Activated Fly Ash in Concrete

HELA, R.; BODNÁROVÁ, L.

Original Title

Observation and Experience of Using Mechanically Activated Fly Ash in Concrete

English Title

Observation and Experience of Using Mechanically Activated Fly Ash in Concrete

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Paper focuses on experimental testing of possibilities of mechanical activation of fly ash and observation of influence of specific surface and granulometry on final properties of fresh and hardened concrete. Mechanical grinding prepared various fineness of fly ash, which was classed by specific surface in accordance with Blain and their granulometry was determined by means of laser granulometer. Then, sets of testing specimens were made from mix designs of identical composition with 25% or Portland cement CEM I 42.5 R replaced with fly ash with various specific surface and granulometry. Mix design with only Portland cement was used as reference. Mix designs were tested on consistency of fresh concrete and compressive strength after 7, 28, 60 and 90 days.

English abstract

Paper focuses on experimental testing of possibilities of mechanical activation of fly ash and observation of influence of specific surface and granulometry on final properties of fresh and hardened concrete. Mechanical grinding prepared various fineness of fly ash, which was classed by specific surface in accordance with Blain and their granulometry was determined by means of laser granulometer. Then, sets of testing specimens were made from mix designs of identical composition with 25% or Portland cement CEM I 42.5 R replaced with fly ash with various specific surface and granulometry. Mix design with only Portland cement was used as reference. Mix designs were tested on consistency of fresh concrete and compressive strength after 7, 28, 60 and 90 days.

Keywords

Concrete, fly ash, latent hydraulicity, mechanically, activated fly ash

Key words in English

Concrete, fly ash, latent hydraulicity, mechanically, activated fly ash

Authors

HELA, R.; BODNÁROVÁ, L.

RIV year

2014

Released

25.11.2013

Location

Thailand

ISBN

2010-376X

Periodical

World Academy of Science, Engineering and Technology

Volume

2013

Number

83

State

Republic of Indonesia

Pages from

1103

Pages to

1106

Pages count

4

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT104401,
  author="Rudolf {Hela} and Lenka {Bodnárová}",
  title="Observation and Experience of Using Mechanically Activated Fly Ash in Concrete",
  journal="World Academy of Science, Engineering and Technology",
  year="2013",
  volume="2013",
  number="83",
  pages="1103--1106",
  issn="2010-376X"
}