Behavior of Class C Fly Ash during Firing at High Temperatures

Lucie Vodová; Radomír Sokolař

doi:10.4028/www.scientific.net/AMR.1000.162

Paper Titles

Cyclic Weathering of Wood - Polymer Composite Modified by a Fly Ash Admixture
p.145

Modelling of Influence of Heat Curing on Mechanical Properties of Fly-Ash Concrete Mixtures
p.150

Treatment of Timber by Nanofiber Fabric with Biocide Compound
p.154

Limestone Sludge in the Brick Body
p.158

Behavior of Class C Fly Ash during Firing at High Temperatures
p.162

Study on the Process of Creating Fly Ash Body
p.166

Utilization of Bottom Ash for Sintered Artificial Aggregate
p.170

Application of Metakaoline in Autoclaved Aerated Concrete Technology
p.174

Utilization of Materials from the Production of Mineral Wool into Construction Materials
p.178

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1000Behavior of Class C Fly Ash during Firing at High...

Behavior of Class C Fly Ash during Firing at High Temperatures

Abstract:

Fluidized fly ash (class C according to ASTM) from thermal power plants Hodonin and Ledvice and stoneware clay B1 were used in the experimental work dealing with SO₂ emissions during the firing at 1200°C. The aim of the work was to define the temperature at which sulphur dioxide begins to leak, and the leakage rate of SO₂. It was found that temperature of decomposition of anhydrite depends on particle size. For milled fly ash is this temperature 150°C lower than for unmilled ashes. The addition of clay also decreases the temperature of decomposition. Sulphur dioxide begins to leak at 975 °C for samples with 40% addition of fly ash.