Manuscript Title:

UTILIZATION OF IRON ORE TAILING AS PARTIAL SUBSTITUTION TO FINE AGGREGATE FOR A SUSTAINABLE AND DURABLE HIGH-STRENGTH CONCRETE

Author:

JAYASIMHA. N, SUJINI.B. SURESH, B.P. ANNAPURNA

DOI Number:

DOI:10.17605/OSF.IO/7KSQP

Published : 2022-12-10

About the author(s)

1. JAYASIMHA. N - Research Scholar, Department of Civil Engineering, UVCE, Bangalore, India.
2. SUJINI.B. SURESH - P.G. Student, Department of Civil Engineering, UVCE, Bangalore, India.
3. B.P. ANNAPURNA - Professor, Department of Civil Engineering, UVCE Bangalore, India.

Full Text : PDF

Abstract

Viable management of iron ore tailings is of paramount importance for iron ore mining stakeholders. This research aims to increase the value of tailings by investigating their potential application as a substitute for fine particles in high-strength concrete. With a W/B ratio of 0.32, a 60 MPa concrete mixture was prepared in the lab. The curing periods for the concrete were 28 & 56 days, respectively. Concrete parameters such as workability, compressive strength, tensile strength, flexural strength, young's modulus, permeability, Sorptivity, chloride ion diffusion, and resistance to acid attack were evaluated. The experimental results reveal that using iron ore tailings in concrete enhances its workability & physical attributes such as compressive strength, tensile strength, modulus of elasticity, and modulus of rigidity. Furthermore, with higher percentages of IoT, chloride penetration, permeability, and adsorption rate decrease, and it performs better in acidic environments.


Keywords

Control Concrete (CC), IoT, Compressive strength, Tensile strength, Flexural Strength, Modulus of Elasticity (MOE).