Preparation and Properties of Iron Tailings-Fly Ash Based Geopolymers

Hai Tao Wang; Yi Yang; Yu Zhang; Yue Xin; Ying Zhou

doi:10.4028/p-P2b4uQ

Paper Titles

Effect of Silicon-Based Surfactant on Compression Strength, Morphology, and Flammability of the Aluminium Hydroxide-Filled Rigid Polyurethane Foam
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Studies of Fe₃O₄ Nanoparticles Prepared by Co-Precipitation Method of FeSO₄ and FeCl₃ Solution
p.13

Fractionation Studies to Increase the Ni Grade of Saprolite Ores from the Wolo Mine Area, Kolaka Regency of Southeast Sulawesi, Indonesia
p.23

Preparation and Properties of Iron Tailings-Fly Ash Based Geopolymers
p.35

Experimental Study of the Bearing Capacity of Hybrid Fiber-Reinforced Concrete Pipes
p.53

Qualitative Assessment of a Construction Building
p.63

An Experimental Investigation on Geopolymer Bricks Using Quarry Dust as Fine Aggregate
p.73

An Experimental Study on Mechanical Properties of Concrete by Partial Replacement of Cement with Rice Husk Ash and Silica Fume
p.81

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1182Preparation and Properties of Iron Tailings-Fly...

Preparation and Properties of Iron Tailings-Fly Ash Based Geopolymers

Abstract:

Iron tailings are the main component of industrial solid waste. The long-term storage and landfill of iron tailings have caused great pressure on the environment. In this paper, Anshan type high-silicon iron tailings and fly ash were used as the main raw materials to prepare geopolymer. The activity of raw materials was determined by XRD, and geopolymer was prepared by high temperature water culture. The effect of iron tailings content, liquid-solid ratio and curing temperature on geopolymer mechanics was studied. The optimal ratio was determined by regression equation analysis with compressive strength as index. The reaction process of geopolymer was studied through microscopic analysis (XRD, SEM, FTIR), and the changes before and after the reaction of geopolymer were compared to prove the reaction degree of geopolymer, and representative specimens were selected to verify the strength changes under different ratios. The durability of the prepared polymers was tested, and the relevant parameters were determined. The gelling material with good freezing resistance and chemical corrosion resistance was successfully prepared, and the industrial waste was transformed into treasure.