Synergetic effect of dealuminated kaolin and electric arc furnace slag in the preparation of eco-friendly binders
Benha Journal of Applied Science • 2022
Publication Information
Authors
120. Ibrahim Hatem, Mohamed Heikal, MY Nassar, and SM Ibrahim
Keywords
Geo-polymer; Eco-friendly binder; Dealuminated kaolin; and Microstructure
Journal
Benha Journal of Applied Science
Publisher
Benha University
Volume
Volume 7,
Issue
Issue 12,
Pages
17-25
publication.type
Local
Paper Link
Open Link
Supplementary Materials
Not Available
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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