Preparation, physico-mechanical characteristics and durability of eco-alkali-activated binder from blast-furnace slag, cement kiln-by-pass dust and microsilica ternary system

•Increase of CKPD%, Wn content increases upto 50mass%.•Wn content of SSFCKD20 increases than with specimen without-MS (SCKD20 mix).•Replacement of GBFS with 20 and/or 30 mass% CKPD uncommonly increases the CS.•The precipitation of geopolymer reduces the attainable of SO42- anion which give rise to the deterioration.•GBFS-CKPD-MS geopolymers are not easily breaking in by attacker Cl- anions.•20mass% CKPD is the suitable mix design composition, which gives high values of CS, BD and Wn contents. The objective of the study is to produce a more durable binder by preparing different mixes from Blastfurnace-slag (GBFS), By-pass cement dust (CKPD), and/or micro-silica (MS). Conductivity, compressive strength (CS), bulk density (BD), total porosity (TP), combined water (Wn), combined slag, total sulfate (TS) and total chloride (TC) contents used to make the necessary measurements. MS impacts have a good role in the location and conductivity maximum. Irregular replacement of GBFS with 20-30 mass% CKPD uncommonly increases CS, BD, combined slag content, whereas decreases the TP. The compressive strength diminishes with CKPD content up to 40–50 mass%. We do recommend that, 20% CKPD is the suitable mix composition, giving a lower value of TP and high values of CS, BD, and Wn contents. In the existence of MS, the resistance of 5% MgSO4 and 5% MgCl2 solutions has modified to decrease the rate of permeation of SO42- and Cl- anion.