Utilization of Iron Tailings for High Strength Fired Brick

Wei Juan Guo; Gao Xiang Du; Ran Fang Zuo; Jing Hui Liao

doi:10.4028/www.scientific.net/AMR.550-553.2373

Paper Titles

Research on the Degradation of Phenanthrene with Potassium Ferrate and the Process by Fluorescence
p.2354

Preparation of Acid-Treated Sunflower Straw Powder and Adsorption Behavior of Cr(VI) Ions onto it
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Effect of Flavone from Forestry Waste C.Cathayensis Exocarp on Photosynthetic Characteristics of Crops
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Study on Using CBF to Treat High Nitrogen and Low Carbon Wastewater
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Utilization of Iron Tailings for High Strength Fired Brick
p.2373

Estimation of Air Pollutant Emissions from Mobile Sources with Three Emission Factors Models
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Treatment of Four Dyes Wastewater Using Fenton Reagent and Dynamical Research
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Optimization of Degrading Poly-Containing Wastewater Conditions of Mixed Bacteria by Orthogonal Experiments
p.2386

Treatment of Poly-Containing Wastewater with Combined Process of Immobilized Microorganism
p.2391

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 550-553Utilization of Iron Tailings for High Strength...

Utilization of Iron Tailings for High Strength Fired Brick

Abstract:

his paper studies the feasibility of preparation high strength fired bricks from iron tailings with addition of clay and coal gangue. The results indicated that the optimum conditions were found to be that the hematite tailings content were 35%–50%; the firing temperature was 1000 °C. Under these conditions, the mechanical strength, the water absorption and the bulk density of the fired bricks were 21.17–26.14 MPa, 14.55–15.47% and 1.648–1.629g/cm³, respectively, these were well conformed to standards MU20 of Chinese Fired Common Bricks Standard (GB/T5101-2003).The phase composition and microstructure of the fired specimen were characterized by XRD and SEM. The results showed that the major crystalline phases present in fired brick were quartz, albite, amphibole, hematite and muscovite, and glass phase encapsulated and cement the crystalline phases forming strong entirety which promoted the strength of bricks.