SUSTAINABLE CONSTRUCTION MATERIAL - COPPER SLAG: A REVIEW

2017

Consolidating 125 studies undertaken since 1989, the effects of copper slag (CS) used as sand on concrete properties are discussed. CS increases the consistence of concrete but, if uncontrolled, this may affect its stability. The setting times and early strength development are retarded. It has been commonly reported that concrete containing up to 50% CS shows improvement in strength properties, modulus of elasticity, creep and shrinkage. The permeation of concrete could be reduced because of an improvement in particle packing. The durability of concrete is generally not affected. The material shows potential for use in self-compacting, high-strength and high-durability concrete. Its use in concrete does not present a threat to the environment and the material is used in the concrete construction industry. The study of copper tailings is discussed.

Crystals, 2021

Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron, cobalt, silica, and alumina. Slag is a major problem in the metallurgical industries as it is dumped into heaps which have accumulated into millions of tons over the years. Moreover, they pose a danger to the environment as they occupy vacant land (space problems). Over the past few years, studies have been conducted to investigate the copper slag-producing outlets to learn their behavior, as well as properties of slag, to have the knowledge of how to better reuse and recycle copper slag. This review article provides the environmental and socioeconomic impacts of slag, as well as a characterization of copper slag, with the aim of reusing and recycling the slag to benefit the environment and economy. Recycling methods are considered an attractive technological pathway for reducing waste and green...

International Journal of Advance Research and Innovative Ideas in Education, 2019

Properties of concrete with copper slag as fine aggregate replaced were studied. Control concrete with normal fine aggregate and copper slag concrete with 0-30% fine aggregate replacement with copper slag were made. Constant water to cement ratio of 0.4% was maintained for all the concrete. Properties like compressive strength investigate in the laboratory. The result showed that density of the concrete decreases with increases in copper slag percent. Compressive strength of copper slag concrete were lower than control concrete. This paper reports the effect of concrete using copper slag as fine aggregate replacement. In this project work concrete grade M40 was selected and IS method was used for mixed design. The properties of material for cement, Fine aggregate, coarse aggregate and copper slag were studied for mix design. The maximum compressive strength of concrete attained at 30% replacement of fine aggregate at 7, 14 and 28 days. The compressive strength of concrete attained a...

Journal of Materials Science, 2007

The use of industrial solid waste to concrete production is environmentally friendly because it contributes to reducing the consumption of natural resources, the pollution concrete production generates and the power it consumes. This paper presents the results of a study on the use of copper slag as pozzolanic supplementary cementing material for use in concrete. Initially, the chemical and mineralogical characteristics of the copper slag were determined. After this, concrete batches were made with copper slag additions of 20% (relative to the cement weight) and a set properties were investigated, i.e., specific gravity, compressive strength, splitting-tensile, absorption, absorption rate by capillary suction and carbonation. The results pointed out that there is a potential for the use of copper slag as a supplementary cementing material to concrete production. The concrete batches with copper slag addition presented greater mechanical and durability performance.

Copper slag is an industrial by-product, produced during manufacture of copper. Due to depletion & thereby scarcity of natural resources seems to be a problem for successive generations, it is needed to search the alternatives of natural sand (river sand). This paper presents the results and comparison between the properties of conventional concrete & concrete made by partial replacement of river sand by copper slag. For this research M20 and M40 grade of concrete were used. And the replacement of natural sand by copper slag was 20%, 30%, 40% and 50%. Maximum compressive strength was found at 40% replacement level at 7 days and 28 days for both grades. Increase in compressive strength can be up to 41% from that of the control mix design concrete.

International Journal of Scientific Research in Engineering and Management (IJSREM), 2020

Sand is the most commonly used fine aggregate which occurs naturally. But there is scarcity of natural sand day by day. Hence there is a need to find any other material which can replace sand. So many researches were takes place to find alternative for the sand. In this paper we replaced sand by copper slag. Copper slag is one of the materials that is considered as a waste material which could have a promising future in construction industry as partial or full substitute of either cement or aggregates. It is a by-product obtained during the matte smelting and refining of copper. The different tests conducted in laboratories consists mixing of concrete in the laboratory by replacing Copper Slag as fine aggregate with proportions (by weight) of Copper Slag added to concrete mixtures were as follows: 0% (for the control mix), 10%, 20%, 30%, 40%, 50%, 60%, 75%, and 100%. Concrete samples were prepared and cured in the laboratory, and are tested, to evaluate the concrete fresh and harden properties like compressive strength and flexural strength requirements.

2021

1Research Scholar, JIT Borawan(M.P) 2Assistant Professor, JIT Borawan(M.P) -------------------------------------------------------------------------***-----------------------------------------------------------------------ABSTRACT:Copper slag is an industrial by-product generated during extraction and refining of copper metal from copper ore. Presently there are limited uses of copper slag and unused quantity is dumped unattended in the landfills, which create pollution in the environment. Particle size analysis of copper slag shows that it can be a substitute for fine aggregate in the concrete during construction of rigid pavements. The principal objective of this research is to assess the possibility of using copper slag in the construction of rigid pavements.

Advances in Materials Science and Engineering

Motivated by the sustainable production perspective, a laboratory testing program is exercised to ascertain the feasibility of utilizing copper slag in place of the natural fine aggregate in concrete. Totally, fifteen concrete mixtures were prepared to incorporate copper slag in place of the fine aggregate in concrete. The attributes of concrete specimens made with varying proportions of copper slag were compared (ranging from 0% to 100% substitution) at a w/c ratio of 0.44, and the optimum percentage of copper slag was decided. The w/c ratio in the mix containing optimum copper slag percentage was then varied (from 0.42 to 0.36) to examine the influence of the change in the quantity of available water on the strength attributes of concrete. Concrete specimens were assessed for workability, density, compressive strength, flexural strength, and split tensile strength. SEM images and X-ray diffractograms of concrete specimens were also studied. The results obtained indicated a signifi...

International Journal of Advanced Research in Engineering and Applied Sciences, 2015

Many countries are witnessing a rapid growth in the construction industry which involves the use of natural resources for the development of the infrastructure. In order to reduce dependence on natural aggregates as the main source of aggregate in concrete, artificially manufactured aggregates and artificial aggregates generated from industrial wastes provide an alternative for the construction industry. The present study encouraged the utilization of industrial waste copper slag as replacement of natural aggregates in concrete. The results indicate that the workability of concrete increases significantly with the increase of copper slag content in concrete mixes. The use of copper slag in concrete increases the compressive strength of more than 30% as compared to control mixture. It is recommended that up to 40% of copper slag can be use as replacement of fine aggregates.