MATEC Web Conf.
Volume 174, 20183rd Scientific Conference Environmental Challenges in Civil Engineering (ECCE 2018)
|Number of page(s)||11|
|Section||Material Engineering, Waste Management in Civil Engineering|
|Published online||26 June 2018|
Use of fly ash from fluidized bed boilers in clinker-slag-ash based binders
Department of Engineering Building Materials, Faculty of Civil Engineering, Opole University of Technology, Katowicka 48, 45-061 Opole, Poland
* Corresponding author: email@example.com
The study presents the state of knowledge regarding physical and chemical properties, as well as trends for application of fly ashes from combustion in fluidized bed boilers in building materials. Clinker - slag - ash based binders were tested that contained up to 40 mass % of fly ashes from combustion in fluidized bed boilers. It was demonstrated that fluidized bed combustion fly ashes (FBC fly ash), apart from granular blast furnace slag, could be the ingredient of low clinker Portland cements (ca. 20% by mass). These cements, compared to CEM I Portland cement, have higher water demand and durability in the corrosive environment, and a lower compressive strength value. Based on test results of binders with various content of blast furnace slag and fly ash, the clinker - slag - ash based binder was singled out, which demonstrated the higher durability in the corrosive environment. It was found that production of clinker - slag - ash based binders was possible in the strength class 32.5 even with 30% by mass of FBC fly ash content.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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