Synergetic effect of dealuminated kaolin and electric arc furnace slag in the preparation of eco-friendly binders

Document Type : Original Research Papers

Authors

Chemistry Department, Faculty of Science, Benha University, Benha, Egypt

Abstract

The work aims to reuse two different industrial solid wastes (Dealuminated kaolin (DK) and Electric arc furnace slag (EAFS)) in the manufacture of eco-friendly binder. The probability of producing the more durable eco-friendly geo-polymer binders is produced from blending EAFS, and DK solid wastes sections with different dosages of alkaline activator solution. The produced binder was treated at ± 30oC at relative humidity (RH) 98 ± 1 %. Different experimental tests were performed such as, compressive strength, combined water, and free slag content. In addition to instrumental techniques such as XRD, DTA/TGA, SEM and FTIR were performed. DK hindered the formation of micro cracks through EAFS-geopolymer and enhanced the C-S-H formation beside enhanced the durability of the binder matrixes.

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