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Description
  • V článku je studován vliv plastifikačních a hydrofobizačních přísad a vodního součinitele na průběh hydratace energosádry ve srovnání s průběhem naměřeným na referenční energosádře bez přísad. Měření provedená pomocí kalorimetru KC 01 ukazují výskyt β-anhydritu III v sádře, který poněkud zvyšuje naměřená hydratační tepla ve srovnání s tabulkovými hodnotami. Vliv přísad se projevuje pouze v určitém zpomalení hydratační reakce, ale neovlivňuje celkové hydratační teplo. Vliv teploty na průběh hydratace energosádry v rozmezí 1-40 °C se ukazuje jako významný a projevuje se přibližně lineární závislostí maxima výkonu na teplotě. (cs)
  • Effect of plasticizers, hydrophobizers and water/gypsum ratio on the course of hydration heat development of gypsum is studied in the paper. Experimental results show the occurrence of β - anhydrite III in gypsum which increases the measured hydration heat in comparison with reference values for hemihydrate. The effect of gypsum modifications using several different plasticizers and hydrophobizers on the total hydration heat is found negligible but the hydration heat development is slightly slowed down compared to the reference gypsum. The rate of the hydration reaction increases with increasing ambient temperature in a significant way already in the range of temperatures of 1°C to 40°C, the dependence of the peak maximum power on temperature being approximately linear.
  • Effect of plasticizers, hydrophobizers and water/gypsum ratio on the course of hydration heat development of gypsum is studied in the paper. Experimental results show the occurrence of β - anhydrite III in gypsum which increases the measured hydration heat in comparison with reference values for hemihydrate. The effect of gypsum modifications using several different plasticizers and hydrophobizers on the total hydration heat is found negligible but the hydration heat development is slightly slowed down compared to the reference gypsum. The rate of the hydration reaction increases with increasing ambient temperature in a significant way already in the range of temperatures of 1°C to 40°C, the dependence of the peak maximum power on temperature being approximately linear. (en)
Title
  • Monitoring the Course of Hydration Heat Development of Gypsum
  • Monitorování průběhu vývoje hydratačního tepla sádry (cs)
  • Monitoring the Course of Hydration Heat Development of Gypsum (en)
skos:prefLabel
  • Monitoring the Course of Hydration Heat Development of Gypsum
  • Monitorování průběhu vývoje hydratačního tepla sádry (cs)
  • Monitoring the Course of Hydration Heat Development of Gypsum (en)
skos:notation
  • RIV/68407700:21110/06:01128706!RIV07-MPO-21110___
http://linked.open.../vavai/riv/strany
  • 141 ; 144
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(FT-TA3/005)
http://linked.open...iv/cisloPeriodika
  • 1
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
  • 486728
http://linked.open...ai/riv/idVysledku
  • RIV/68407700:21110/06:01128706
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Gypsum; Hydration Heat Development (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • PL - Polská republika
http://linked.open...ontrolniKodProRIV
  • [BAAC882683C7]
http://linked.open...i/riv/nazevZdroje
  • Roczniki Inźynierii Budowlanej
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
  • 6
http://linked.open...iv/tvurceVysledku
  • Tesárek, Pavel
  • Černý, Robert
  • Tydlitát, V.
issn
  • 1505-8425
number of pages
http://localhost/t...ganizacniJednotka
  • 21110
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