Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Brno University of Technology

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (3/3 displayed)

  • 2023Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortarscitations
  • 2023The Effects of Silica Fume and Superplasticizer Type on the Properties and Microstructure of Reactive Powder Concrete8citations
  • 2022Influence of activator type and slag volume fraction on properties of alkali-activated slag pastes5citations

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Bílek, Vlastimil
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Kucharczyková, Barbara
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Novotný, Radoslav
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Dlabajová, Lucie
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Drdlová, Martina
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Šoukal, František
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Šuleková, Nikola
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Bocian, Luboš
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Koutný, Ondřej
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Kotrla, Jan
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2022

Co-Authors (by relevance)

  • Bílek, Vlastimil
  • Kucharczyková, Barbara
  • Novotný, Radoslav
  • Dlabajová, Lucie
  • Drdlová, Martina
  • Šoukal, František
  • Šuleková, Nikola
  • Bocian, Luboš
  • Koutný, Ondřej
  • Kotrla, Jan
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document

Effect of siliceous sand volume fraction on the properties of alkali-activated slag mortars

  • Hajzler, Jan
  • Bílek, Vlastimil
  • Kucharczyková, Barbara
Abstract

One of the critical factors affecting the performance of alkali-activated slag (AAS) is the nature and dose of alkali activator. The activator type can play a significant role during the transition from pastes to mortars or concretes. Therefore, three basic sodium activators (water glass, carbonate, and hydroxide) of the same molarity of 4M Na+ were used to prepare AAS-based mortars with different volume fractions of siliceous sand. These were compared by means of workability, mechanical strength, and long-term shrinkage under autogenous conditions. The results were compared to those obtained on pastes with similar workability. Increasing the content of the sand tended rather to decrease the mechanical properties, while greatly decreased autogenous shrinkage. Nevertheless, the most remarkable differences for different activators were observed when comparing the mortars with pastes. The transition from pastes to mortars resulted in the highest reduction in both compressive and flexural strength for sodium hydroxide. The flexural strength of the mortars with sodium water glass and sodium carbonate even increased considerably in presence of sand.

Topics
  • impedance spectroscopy
  • glass
  • glass
  • strength
  • Sodium
  • flexural strength
  • atomic absorpion spectrometry