implementation of industrial waste ferrochrome slag in conventional and low cement castables: effect of calcined alumina
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2014
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Abstract
A new class of conventional and low-cement ferrochrome slag-based castables were prepared from 40 wt.% ferrochrome slag and 45 wt.% calcined bauxite. Rest fraction varied between high alumina cement (HAC) acting as hydraulic binder and calcined alumina as pore filling additive. Standard ASTM size briquettes were prepared for crushing and bending strengths evaluation, and the samples were then subjected to firing at 800, 1100 and 1300 °C for a soaking period of 3 h. The microstructure and refractory properties of the prepared castables have been investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), cold crushing strength, modulus of rupture and permanent linear changes (PLCs) test. Castables show good volume stability (linear change <0.7%) at 1300 °C. The outcomes of these investigations were efficacious and in accordance with previously reported data of similar compositions. High thermo-mechanical and physico-chemical properties were attained pointing out an outstanding potential to increase the refractory lining working life of non-recovery coke oven and reheating furnaces.
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| Reference Key |
kumar2014journalimplementation
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|---|---|
| Authors | ;Pattem Hemanth Kumar;Abhinav Srivastava;Vijay Kumar;Vinay Kumar Singh |
| Journal | offshore |
| Year | 2014 |
| DOI |
10.1016/j.jascer.2014.08.001
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| URL | |
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