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  • Ultra High Performance Concrete (UHPC) and High Strength Concrete (USC) are because of the high density of their matrices very susceptible to spalling during fire exposure. By aid of a heat treatment with maximum temperatures of about 450C a network of capillaries and micro cracks could be formed, which leads like a porous medium to a relief of water vapor already at harmless low pressures and could prevent the materials from spalling. – In the framework of the presented study on UHPC some orientating tests have been performed to obtain knowledge concerning alterations of the microstructure during thermal treatment at 150C, 250C, 350C and 450C and the subsequent storage in air with 100% relative humidity at 20C as to allow water uptake and rehydration. The tests have shown that by aid of the said treatment generation of a respective porous system was achieved, which remained open for the transport of water vapor at high temperatures, also after water uptake and rehydration of the dehydrated cementit
  • Ultra High Performance Concrete (UHPC) and High Strength Concrete (USC) are because of the high density of their matrices very susceptible to spalling during fire exposure. By aid of a heat treatment with maximum temperatures of about 450C a network of capillaries and micro cracks could be formed, which leads like a porous medium to a relief of water vapor already at harmless low pressures and could prevent the materials from spalling. – In the framework of the presented study on UHPC some orientating tests have been performed to obtain knowledge concerning alterations of the microstructure during thermal treatment at 150C, 250C, 350C and 450C and the subsequent storage in air with 100% relative humidity at 20C as to allow water uptake and rehydration. The tests have shown that by aid of the said treatment generation of a respective porous system was achieved, which remained open for the transport of water vapor at high temperatures, also after water uptake and rehydration of the dehydrated cementit (en)
Title
  • Rehydration of Ultra High Performance Concrete
  • Rehydration of Ultra High Performance Concrete (en)
skos:prefLabel
  • Rehydration of Ultra High Performance Concrete
  • Rehydration of Ultra High Performance Concrete (en)
skos:notation
  • RIV/00216305:26110/14:PU108732!RIV15-MSM-26110___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(EE2.3.20.0111)
http://linked.open...iv/cisloPeriodika
  • 897
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 41934
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26110/14:PU108732
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • ultra high performance concrete, high strength concrete, high temperature behavior, fire behavior, spalling, thermal treatment, dehydration, rehydration, porous structure, water adsorption, desorption (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [9390104764C8]
http://linked.open...i/riv/nazevZdroje
  • AMR - Advanced Materials Research
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2014
http://linked.open...iv/tvurceVysledku
  • Petránek, Vít
  • Diederichs, Ulrich Martin
issn
  • 1662-8985
number of pages
http://localhost/t...ganizacniJednotka
  • 26110
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