Detail publikačního výsledku

Application of a-SiO2 Rich Additives in Cement Paste

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

Originální název

Application of a-SiO2 Rich Additives in Cement Paste

Anglický název

Application of a-SiO2 Rich Additives in Cement Paste

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

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

Rok RIV

2016

Vydáno

07.04.2015

Nakladatel

Trans Tech Pubishing

Místo

Švýcarsko

ISBN

978-3-03835-445-1

Kniha

Materials and Manufacturing Engineering

ISSN

1662-7482

Periodikum

Applied Mechanics and Materials

Svazek

749

Číslo

2015

Stát

Švýcarská konfederace

Strany od

362

Strany do

367

Strany počet

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"
}