Effect of synthesis parameters on the compressive strength of low-calcium ferronickel slag inorganic polymers.
The wide range of physical and chemical properties of inorganic polymers, also known as geopolymers, commonly formed by alkali activation of aluminosilicates, makes these materials useful for a variety of applications. In the present experimental study inorganic polymers are synthesised from low-Ca electric arc ferronickel slag. The effect of experimental conditions on the compressive strength of the final products is assessed. A number of techniques, namely XRD, FTIR and TG-DTG were used to identify new phases and subsequently elucidate to some degree the mechanisms involved. Finally, the paper discusses briefly the potential of inorganic polymer technology as a feasible option for the utilisation of certain potentially hazardous mining and metallurgical wastes towards an increased sustainability of the wider minerals sector.
Komnitsas
Kostas
K
Department of Mineral Resources Engineering, Technical University Crete, Hania 73100, Greece. komni@mred.tuc.gr
Zaharaki
Dimitra
D
Perdikatsis
Vasillios
V
D000497:Alloys; D000538:Aluminum Silicates / Q000737:chemistry*; D002118:Calcium / Q000737:chemistry*; D002412:Cations; D019245:Compressive Strength; D007287:Inorganic Chemicals / Q000737:chemistry; D007501:Iron / Q000737:chemistry*; D007616:Kaolin / Q000737:chemistry; D008956:Models, Chemical; D009532:Nickel / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry / Q000379:methods; D014961:X-Ray Diffraction; D014965:X-Rays
D000497:Alloys; D000538:Aluminum Silicates; D002412:Cations; D007287:Inorganic Chemicals; D011108:Polymers; C030616:ferronickel; C049037:aluminosilicate; D007616:Kaolin; D009532:Nickel; D007501:Iron; D002118:Calcium