Detail publikačního výsledku

Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends

BOHÁČ, M.; PALOU, M.; NOVOTNÝ, R.; MÁSILKO, J.; VŠIANSKÝ, D.; STANĚK, T.

Originální název

Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends

Anglický název

Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends

Druh

Článek WoS

Originální abstrakt

The paper investigates the hydration of ternary blends comprising Portland cement, blast-furnace slag and metakaolin. The isothermal calorimetry and in situ X-ray diffraction was used to evaluate the effect of metakaolin and blast-furnace slag on the early hydration of blends. XRD, DTA and SEM were used to analyze the hardened paste after 1 month of hydration. Metakaolin influences significantly the kinetics, mechanism and products of hydration at initial period of hydration causing the rapid formation of ettringite. Hemicarbonate aluminate hydrate is formed as a product of ettringite conversion due to the presence of reactive calcite in Portland cement.

Anglický abstrakt

The paper investigates the hydration of ternary blends comprising Portland cement, blast-furnace slag and metakaolin. The isothermal calorimetry and in situ X-ray diffraction was used to evaluate the effect of metakaolin and blast-furnace slag on the early hydration of blends. XRD, DTA and SEM were used to analyze the hardened paste after 1 month of hydration. Metakaolin influences significantly the kinetics, mechanism and products of hydration at initial period of hydration causing the rapid formation of ettringite. Hemicarbonate aluminate hydrate is formed as a product of ettringite conversion due to the presence of reactive calcite in Portland cement.

Klíčová slova

Ternary system, Portland cement, metakaolin, blast-furnace slag, hydration

Klíčová slova v angličtině

Ternary system, Portland cement, metakaolin, blast-furnace slag, hydration

Autoři

BOHÁČ, M.; PALOU, M.; NOVOTNÝ, R.; MÁSILKO, J.; VŠIANSKÝ, D.; STANĚK, T.

Rok RIV

2015

Vydáno

04.05.2014

Nakladatel

Elsevier

ISSN

0950-0618

Periodikum

Construction and Building Materials

Svazek

2014

Číslo

64

Stát

Spojené království Velké Británie a Severního Irska

Strany od

333

Strany do

341

Strany počet

9

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT107462,
  author="Martin {Boháč} and Martin {Palou} and Radoslav {Novotný} and Jiří {Másilko} and Dalibor {Všianský} and Theodor {Staněk}",
  title="Investigation on early hydration of ternary Portland cement-blast-furnace slag-metakaolin blends",
  journal="Construction and Building Materials",
  year="2014",
  volume="2014",
  number="64",
  pages="333--341",
  doi="10.1016/j.conbuildmat.2014.04.018",
  issn="0950-0618"
}