Preparation, physico-mechanical characteristics and durability of eco-alkali-activated binder from blast-furnace slag, cement kiln-by-pass dust and microsilica ternary system
Construction and Building Materials • 2020
معلومات البحث
المؤلفون
109. Mohamed Heikal, M.E.A. Zaki, Sahar M Ibrahim
الكلمات المفتاحية
GeopolymerAggressive attackMicroscopic characteristicsConductivityDurabilityTotal sulfateTotal chloride
المجلة العلمية
Construction and Building Materials
الناشر
Elsevier Ltd
المجلد
260,
العدد
Not Available
الصفحات
119947
publication.type
International
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
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.
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