Publication detail

The microstructure of a cement composite based on a secondary raw materials

FIGALA, P. DROCHYTKA, R.

Original Title

The microstructure of a cement composite based on a secondary raw materials

Type

conference paper

Language

English

Original Abstract

Waste management and its use as a secondary raw material is a matter that is being given increasing attention. Such raw materials also include waste products from the energy industry or municipal waste disposed of from the recycling process. This study explores the use of secondary raw materials in specific cement–based cement composite as a partial binder substitute. Selected secondary raw materials were pre–treated by grinding to a specific surface of 300 and 500 m²kg⁻¹. As a reference material, a commercially available mixture was selected to produce cement composites intended for the environment with high physical–mechanical demands. Cement was substituted by secondary raw materials at a rate of 20 and 40% in the reference recipe. Basic physical–mechanical characteristics such as compressive strength and tensile strength at bending were determined on standard 160×40×40 mm prisms. Strengths were determined after 3 and 28 days of ageing. In addition, the influence of binder substitute by the admixtures on the microstructure of cement stone was monitored by sample scanning using an RTG tomography. The positive effect of a part of the binder substitution by selected secondary raw materials on microstructure was proved in all tested samples. From the measured data, it is evident that the higher specific surface of the pre–treated admixtures did not have a significant positive effect either on strengths or the microstructure.

Keywords

secondary raw material, slag, waste glass, the microstructure, cement composite

Authors

FIGALA, P.; DROCHYTKA, R.

Released

16. 7. 2018

Publisher

IOP Publishing

Location

United Kingdom

ISBN

1757-899X

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

385

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

6

Pages count

6

URL

http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012012

Full text in the Digital Library

http://hdl.handle.net/11012/137188

BibTex

@inproceedings{BUT149517,
  author="Petr {Figala} and Rostislav {Drochytka}",
  title="The microstructure of a cement composite based on a secondary raw materials",
  booktitle="Construmat 2018",
  year="2018",
  series="2018",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="385",
  number="1",
  pages="1--6",
  publisher="IOP Publishing",
  address="United Kingdom",
  doi="10.1088/1757-899X/385/1/012012",
  issn="1757-899X",
  url="http://iopscience.iop.org/article/10.1088/1757-899X/385/1/012012"
}