Preparation Eco-Cement with Semi Dry FGD Ash from Steel Plant

Abstract:

Some semi-dry Flue Gas Desulfurization ash (SDFGDA) were taken from sinter gas of steel factory and been oxidized at experimental condition. Oxidized ash, granulated blast-furnace slag (GBFS) and steel slag were grinded and used to prepare cementing materials. Scanning electron microscope (SEM) was employed to identify the samples in order to investigate their hydration structure. The result shows that cementing materials have good hydration properties and mechanical properties, the initial and final setting time are qualified. It is recommended to control the Blaine fineness, mount of SDFGDA, ratio of GBFS/steel slag, mount of clinker to be 4500cm2/g, 19%, 1:4, 20%, respectively, when prepare eco-cement with those materials.

• Periodical: Applied Mechanics and Materials (Volume 665)
• Pages: 379-382
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.665.379
• Online since: October 2014
• Authors: Ren Ping Liu, Rui Yao
• Keywords: Cement, Compressive and Bending Strength, Semi Dry FGD Ash, Steel Slag

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