Detail publikace

Permeability of High Performance Concrete With the Addition of Modified Polypropylene Fibers at Elevated Temperature

FIEDLEROVÁ, M. BODNÁROVÁ, L. BRUCKNER, H. KIRNBAUER, J.

Originální název

Permeability of High Performance Concrete With the Addition of Modified Polypropylene Fibers at Elevated Temperature

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Increasing intensity of road and railway transport and thus a higher risk of accidents leads to the constant increase of safety standards in tunnels. Fire tests undertaken in past showed that increasing temperature leads to evaporation of chemically and physically bounded water and causes explosive spalling of dense high performance concrete (HPC) [1, 2]. New modified PP-fibers with melt flow index (MFI) 2500 provide required fire protection at highly reduced fiber dosage due to decrease of melt viscosity of fiber. Analysis of HPC with the addition of polypropylene fibers of different melt flow indexes and their mode of action is presented in the paper. This paper is focused on clarifying behaviour of concrete at elevated temperature with employing test set-up constructed at Institute of Building Construction and Technology, Vienna University of Technology. This test set-up allows measuring gas permeability of different building materials such as concrete, mortar or ceramic at both high temperature (up to 400°C) and pressure (up to 6 bars).

Klíčová slova

polypropylene fibers, high performance concrete, permeability, explosive spalling

Autoři

FIEDLEROVÁ, M.; BODNÁROVÁ, L.; BRUCKNER, H.; KIRNBAUER, J.

Rok RIV

2015

Vydáno

19. 11. 2015

Nakladatel

Institut für Hochbau und Technologie

Místo

Technische Universität Wien

ISBN

978-3-900576-07-3

Kniha

EVENT MATERIALS

Edice

1

Číslo edice

1

Strany od

84

Strany do

91

Strany počet

266

BibTex

@inproceedings{BUT122260,
  author="Michaela {Dvořáková} and Lenka {Bodnárová} and Heinrich {Bruckner} and Johannes {Kirnbauer}",
  title="Permeability of High Performance Concrete With the Addition of Modified Polypropylene Fibers at Elevated Temperature",
  booktitle="EVENT MATERIALS",
  year="2015",
  series="1",
  number="1",
  pages="84--91",
  publisher="Institut für Hochbau und Technologie",
  address="Technische Universität Wien",
  isbn="978-3-900576-07-3"
}