A Study on Producing Self-Compacting Concrete Mixtures using Different Waste Materials as Mineral Fillers

Author(s): Shamsad Ahmad and Saheed Kolawole Adekunle
Paper category: Proceedings
Book title: Proceeding of the 71st RILEM Annual Week & ICACMS 2017
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN:978-2-35158-195-7, 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 155-164
Total Pages: 10
Language : English

Abstract:  A series of ten different mixtures of self-compacting concrete (SCC) were designed and prepared utilizing fly ash, natural pozzolana, silica fume, cement kiln dust, limestone powder, bag house dust, pulverized steel slag, and metakaolin as alternative mineral fillers. For each mixture, firstly the optimum dosages of superplasticizer and viscosity modifying agent were selected through several trials to meet the requirements of self-compactability. Then, the mechanical properties, shrinkage and durability characteristics of these ten selected SCC mixtures were investigated, and analysis of the experimental results was carried out. The SCC mixtures developed under the present work showed high early and later stage strengths (compressive, tensile and bond). The moduli of elasticity and shrinkage of the developed SCC mixtures were found to be in the same range as that of conventional vibrated concrete of equivalent strength grade. Most of the SCC mixtures had ‘low’ water permeability, 'very low' chloride permeability, ‘high’ electrical resistivity, and high-to-moderate resistance against reinforcement corrosion. Based on the findings of this study, it can be concluded that each of the developed SCC mixtures can be suitably adopted for concrete construction based on the strength and durability requirements and considering the cost-effectiveness.

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00