Detail publikačního výsledku
Improving the dispersion of silica fume in cement pastes and mortars
JANČA, M.; ŠILER, P.; OPRAVIL, T.; KOTRLA, J.
Original Title
Improving the dispersion of silica fume in cement pastes and mortars
English Title
Improving the dispersion of silica fume in cement pastes and mortars
Type
Paper in proceedings (conference paper)
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.
English 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
Key words in English
Silica fume, mortars , concrete, ultrasound technology
Authors
JANČA, M.; ŠILER, P.; OPRAVIL, T.; KOTRLA, J.
RIV year
2020
Released
14.08.2019
Book
International Conference Building Materials, Product and Technologies
ISBN
1757-8981
Periodical
IOP Conference Series: Materials Science and Engineering
Volume
583
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
1
Pages to
7
Pages count
7
Full text in the Digital Library
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"
}