Publication detail

Application of a-SiO2 Rich Additives in Cement Paste

Jaroslav Pokorný, Milena Pavlíková, Eva Navrátilová, Pavla Rovnaníková, Zbyšek Pavlík and Robert Černý

Original Title

Application of a-SiO2 Rich Additives in Cement Paste

Type

conference paper

Language

English

Original Abstract

The effect of a-SiO2 of various origin on the properties of cement paste with incorporated different silica containing materials is experimentally studied in the paper. For the applied a-SiO2 materials, basic physical and chemical properties are accessed, together with their chemical composition. Amount of amorphous phase of SiO2 in particular siliceous materials is determined using XRD analysis. Matrix density, bulk density, total open porosity, compressive and bending strength are measured for all developed pastes with incorporated a-SiO2 containing materials, together with initial and final setting time of fresh mixtures. The obtained data give evidence on a high and fast reaction activity of tested siliceous materials which results in a significant improvement of porosity and mechanical strength of a-SiO2 modified cement pastes.

Keywords

Amorphous silica (a-SiO2), Fine grained material, Pozzolanic activity, Cement paste, Chemical composition, Setting time, Mechanical and basic physical properties

Authors

Jaroslav Pokorný, Milena Pavlíková, Eva Navrátilová, Pavla Rovnaníková, Zbyšek Pavlík and Robert Černý

RIV year

2015

Released

7. 4. 2015

Publisher

Trans Tech Pubishing

Location

Švýcarsko

ISBN

978-3-03835-445-1

Book

Materials and Manufacturing Engineering

Edition number

1.

ISBN

1662-7482

Periodical

Applied Mechanics and Materials

Year of study

749

Number

2015

State

Swiss Confederation

Pages from

362

Pages to

367

Pages count

6

URL

http://scientific.net

BibTex

@inproceedings{BUT114553,
  author="Pavla {Rovnaníková} and Milena {Pavlíková} and Eva {Soukupová} and Zbyšek {Pavlík} and Robert {Černý} and Jaroslav {Pokorný}",
  title="Application of a-SiO2 Rich Additives in Cement Paste",
  booktitle="Materials and Manufacturing Engineering",
  year="2015",
  journal="Applied Mechanics and Materials",
  volume="749",
  number="2015",
  pages="362--367",
  publisher="Trans Tech Pubishing",
  address="Švýcarsko",
  doi="10.4028/www.scientific.net/AMM.749.362",
  isbn="978-3-03835-445-1",
  issn="1662-7482",
  url="http://scientific.net"
}