Publication detail

Improving the dispersion of silica fume in cement pastes and mortars

JANČA, M. ŠILER, P. OPRAVIL, T. KOTRLA, J.

Original Title

Type

conference paper

Language

English

Original Abstract

There are many possibilities on how to improve concrete properties such as compressive strength, flexural strength, durability, and others. The change in the composition of ordinary Portland concrete (OPC) is one possible way. This change may result in the formation of concrete with added properties known as high-performance concrete (HPC). Traditional methods used to high-performance concrete design and manufacture emphasize the removal of coarse aggregates. Use of specially sorted fine aggregates at relatively low doses along with super-plasticizers and silica fume. Problem with fine reactive aggregates is their agglomeration which causes loss of the reactive surface. This work is focused on using of the ultrasound technology for the dispersion of silica fume. For comparison was prepared, different cement pastes mixtures which showed the effects of the treatment of silica fume prior to the use.

Keywords

Silica fume, mortars , concrete, ultrasound technology

Authors

JANČA, M.; ŠILER, P.; OPRAVIL, T.; KOTRLA, J.

Released

14. 8. 2019

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

583

Number

State

United Kingdom of Great Britain and Northern Ireland

Pages from

Pages to

Pages count

BibTex

@inproceedings{BUT157829,
  author="Martin {Janča} and Pavel {Šiler} and Tomáš {Opravil} and Jan {Kotrla}",
  title="Improving the dispersion of silica fume in cement pastes and mortars",
  booktitle="International Conference Building Materials, Product and Technologies",
  year="2019",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="583",
  number="1",
  pages="1--7",
  issn="1757-8981"
}