Microstructure analysis of concrete modified with addition of calcareous fly ash
Journal Title: Roads and Bridges - Drogi i Mosty - Year 2013, Vol 12, Issue 2
Abstract
The investigation of concrete microstructure and phase composition was performed on concrete specimens produced with and without calcareous fly ash obtained from Bełchatów Power Station. The used calcareous fly ash (designated “W”) was either unprocessed or ground to assumed specific surface and added to concrete mix to substitute 30% of the binder by weight. The following testing methods were used in this research: scanning electron microscopy, differential thermal analysis (DTA) and multiple microindentation. The characteristic features of the investigated microstructures are discussed and the effect of calcareous fly ash on the content of non-evaporable water and portlandite in cement matrix is analysed. The results of microindentation and compressive strength testing were used as the basis for evaluation of the efficiency of calcareous fly ash added to concrete mix.
Authors and Affiliations
Michał Glinicki, Róża Krzywobłocka-Laurów, Zbigniew Ranachowski, Mariusz Dąbrowski, Jolanta Wołowicz
Keywords
Related Articles
- EP ID EP69473
- DOI 10.7409/rabdim.013.013
- Views 134
- Downloads 0
Numerically based statistical analysis of parameters effects on FRP honeycomb sandwich panels subjected to torsional loading
In recent years, honeycomb fiber reinforced plastic (FRP) sandwich panels have been increasingly used in various industries. The objective of this study is to conduct a combined numerical-statistical investigation of hon...
Weryfikacja modelu skończenie elementowego przestrzeni sprężystej w kształcie półkuli
W pracy przedstawiono proces weryfikacji skończenie elementowego modelu przestrzeni sprężystej. Rozpatrzono model osiowosymetryczny w kształcie półkuli, zbudowany z jednego rodzaju materiału liniowo-sprężystego, jednorod...
Parameters of load transverse distribution across bridges
The paper concerns analysis of two classic bridge span models i.e. flat grillage and orthotropic plate in order to determine usefulness of characteristic parameters of this models for creation of load transverse distribu...
Overloading coefficients of cantilever span support
Safety analysis of cantilevered bridges can be applied to spans and supports. The paper concerns effects of overloading of temporary supports, usually used for erecting concrete cantilevered spans. Influence of selected...
The influence of rail-vehicles’ properties on dynamic response of a beam bridge
The study is focused on assessment of the influence of the basic properties of rail-vehicles on the dynamic response of the beam bridge in a wide range of a service velocity of the cyclic moving load. The analysis relate...