Detail publikačního výsledku

Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume

KOUTNÝ, O., SNOECK, D.; VAN DER VURST, F.; DE BELIE, N.

Originální název

Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume

Anglický název

Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume

Druh

Článek WoS

Originální abstrakt

This study investigates the rheological behaviour of ultra-high performance cementitious composite mortars containing 15–25 % of silica fume. The utilization of two Portland cements with different mineralogical compositions and their influence on yield stress of mortar was monitored. The coaxial rheometer was used for determination of flow curves of tested samples. It was found that besides the relation between flow and water-to-binder ratio, there is also a substantial relationship with the mortar composition, in particular with the content of silica fume. The yield stress can be described by an exponential function of volume content of solids in the mortar. Such a function can describe not only the influence of granulometry but also the impact of structure formation on early age Portland cement hydration. It was found that the estimation of yield stress can be done even by a simple modular in-field technique such as a spread flow test.

Anglický abstrakt

This study investigates the rheological behaviour of ultra-high performance cementitious composite mortars containing 15–25 % of silica fume. The utilization of two Portland cements with different mineralogical compositions and their influence on yield stress of mortar was monitored. The coaxial rheometer was used for determination of flow curves of tested samples. It was found that besides the relation between flow and water-to-binder ratio, there is also a substantial relationship with the mortar composition, in particular with the content of silica fume. The yield stress can be described by an exponential function of volume content of solids in the mortar. Such a function can describe not only the influence of granulometry but also the impact of structure formation on early age Portland cement hydration. It was found that the estimation of yield stress can be done even by a simple modular in-field technique such as a spread flow test.

Klíčová slova

Ultra-high performance cementitious composite Rheology Yield stress Superplasticizer Silica fume White cement

Klíčová slova v angličtině

Ultra-high performance cementitious composite Rheology Yield stress Superplasticizer Silica fume White cement

Autoři

KOUTNÝ, O., SNOECK, D.; VAN DER VURST, F.; DE BELIE, N.

Rok RIV

2019

Vydáno

17.01.2018

Nakladatel

Elsevier

ISSN

0958-9465

Periodikum

CEMENT & CONCRETE COMPOSITES

Číslo

88

Stát

Spojené království Velké Británie a Severního Irska

Strany od

29

Strany do

40

Strany počet

11

URL

https://www.sciencedirect.com/science/article/pii/S0958946517305061

BibTex

@article{BUT145930,
  author="KOUTNÝ, O., SNOECK, D. and VAN DER VURST, F. and DE BELIE, N.",
  title="Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume",
  journal="CEMENT & CONCRETE COMPOSITES",
  year="2018",
  number="88",
  pages="29--40",
  doi="10.1016/j.cemconcomp.2018.01.009",
  issn="0958-9465",
  url="https://www.sciencedirect.com/science/article/pii/S0958946517305061"
}