Publication result detail

Development of microstructure of the fly ash aerated concrete in time

DROCHYTKA, R.; HELANOVÁ, E.

Original Title

Development of microstructure of the fly ash aerated concrete in time

English Title

Development of microstructure of the fly ash aerated concrete in time

Type

Paper in proceedings (conference paper)

Original Abstract

Calciumhydrosilicate components formed during autoclaving process are highly complex formations, which often blend together mutually and form a variety of intermediate products, from completely amorphous, to the good crystalline phases. For fly ash autoclaved aerated concrete is the situation even more complicated by the fact, that high temperature and fluidized fly ash, as basic silica ingredients, have high variability of the chemical and mineralogical composition. This paper presents the results of the microstructure monitoring and physical and mechanical tests on samples of the fly ash aerated concrete based on high temperature and fluidized fly ashes performed after 2 years of storage in laboratory conditions. The microstructure of aerated concrete is evaluated on the basis of SEM images and mineralogical composition according to X-ray analysis. The changes in compressive strength, density and coefficient of thermal conductivity of the fly ash aerated concrete in time are evaluated.

English abstract

Calciumhydrosilicate components formed during autoclaving process are highly complex formations, which often blend together mutually and form a variety of intermediate products, from completely amorphous, to the good crystalline phases. For fly ash autoclaved aerated concrete is the situation even more complicated by the fact, that high temperature and fluidized fly ash, as basic silica ingredients, have high variability of the chemical and mineralogical composition. This paper presents the results of the microstructure monitoring and physical and mechanical tests on samples of the fly ash aerated concrete based on high temperature and fluidized fly ashes performed after 2 years of storage in laboratory conditions. The microstructure of aerated concrete is evaluated on the basis of SEM images and mineralogical composition according to X-ray analysis. The changes in compressive strength, density and coefficient of thermal conductivity of the fly ash aerated concrete in time are evaluated.

Keywords

Tobermorite; Katoite; Calcium Hydro-Silicates; Durability; Autoclaved Aeratd Concrete

Key words in English

Tobermorite; Katoite; Calcium Hydro-Silicates; Durability; Autoclaved Aeratd Concrete

Authors

DROCHYTKA, R.; HELANOVÁ, E.

RIV year

2016

Released

09.07.2015

Publisher

Elsevier

Location

Krakow

Book

Book of Abstracts

ISBN

1877-7058

Periodical

Procedia Engineering

Volume

108

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

624

Pages to

631

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S1877705815011431

Full text in the Digital Library

http://hdl.handle.net/11012/194744

BibTex

@inproceedings{BUT117076,
  author="Rostislav {Drochytka} and Ester {Helanová}",
  title="Development of microstructure of the fly ash aerated concrete in time",
  booktitle="Book of Abstracts",
  year="2015",
  journal="Procedia Engineering",
  volume="108",
  number="1",
  pages="624--631",
  publisher="Elsevier",
  address="Krakow",
  doi="10.1016/j.proeng.2015.06.189",
  url="https://www.sciencedirect.com/science/article/pii/S1877705815011431"
}