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

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Abstract
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. (C) 2018 Elsevier Ltd. All rights reserved.
Keywords
FIBER-REINFORCED CONCRETE, WATER FILM THICKNESS, YIELD-STRESS, FLOW, PROPERTIES, FRESH CONCRETE, SUSPENSIONS, SLUMP, PARAMETERS, MORTAR, MODELS, Ultra-high performance cementitious composite, Rheology, Yield stress, Superplasticizer, Silica fume, White cement

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Chicago
Koutny, Ondrej, Didier Snoeck, Farid Van Der Vurst, and Nele De Belie. 2018. “Rheological Behaviour of Ultra-high Performance Cementitious Composites Containing High Amounts of Silica Fume.” Cement & Concrete Composites 88: 29–40.
APA
Koutny, O., Snoeck, D., Van Der Vurst, F., & De Belie, N. (2018). Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume. CEMENT & CONCRETE COMPOSITES, 88, 29–40.
Vancouver
1.
Koutny O, Snoeck D, Van Der Vurst F, De Belie N. Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume. CEMENT & CONCRETE COMPOSITES. Oxford: Elsevier Sci Ltd; 2018;88:29–40.
MLA
Koutny, Ondrej et al. “Rheological Behaviour of Ultra-high Performance Cementitious Composites Containing High Amounts of Silica Fume.” CEMENT & CONCRETE COMPOSITES 88 (2018): 29–40. Print.
@article{8591218,
  abstract     = {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. (C) 2018 Elsevier Ltd. All rights reserved.},
  author       = {Koutny, Ondrej and Snoeck, Didier and Van Der Vurst, Farid and De Belie, Nele},
  issn         = {0958-9465},
  journal      = {CEMENT \& CONCRETE COMPOSITES},
  language     = {eng},
  pages        = {29--40},
  publisher    = {Elsevier Sci Ltd},
  title        = {Rheological behaviour of ultra-high performance cementitious composites containing high amounts of silica fume},
  url          = {http://dx.doi.org/10.1016/j.cemconcomp.2018.01.009},
  volume       = {88},
  year         = {2018},
}

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