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This study aimed to investigate the suitability and costbenefit of using copper tailings as partial replacement of sand in concrete production. The study was motivated by the accumulation and nonuse of copper tailings in dams among them tailing dam 25 also known as TD 25 in Kitwe city of the Copperbelt province in Zambia that take up approximately 111 hectares of unused land.,Laboratory ...
· In the present study using copper slag as a filler in glassepoxy composites, the tensile modulus increased from GPa to GPa when using up to 10 wt% of copper slag but on further addition of copper slag (up to 20 wt%), the tensile modulus started to decrease down to GPa.
Copper slag fine aggregate (CUS) is an industrial byproduct produced through the process of manufacturing copper. The aim of this study is to investigate the effects of CUS on the ingress of corrosive substances, including chloride ions and water, including dissolved oxygen associated with corrosion behavior and processes of horizontal steel bars in the reinforced concrete prototype .
The mechanical and corrosion resistance properties of copper slag admixed concrete was evaluated using compression test and various electrochemical tests, respectively. Sand was totally replaced with copper slag in making the concrete specimens. From the investigations it is observed that the copper slag leaching was found to be very less even ...
· However, a slight effect was found in the total water absorption and abrasive resistance. The freeze–thaw resistance of concrete curbs increased significantly after a 20% replacement by waste copper. This study reveals that it is possible to substitute fine sand with waste copper slag without any negative effect on the properties of the curbing.
According to the Portland Cement Association the interaction of copper with both dry and wet concrete should not cause a corrosion concern. However, copper should be protected when it comes in contact with concrete mixtures that contain components high in sulfur, such as cinders and flyash, which can create an acid that is highly corrosive to most metals including copper.
concrete when replacement of copper slag is 50%. 2. In this case we observed that Copper slag behaves like river sand. 3. It is observed that when increasing percentage replacement of fine aggregate by Copper slag the unit weight of concrete is gradually increases. REFERENCES 1. Zine Kiran Sambhaji1, B. Autade2 "Effect of
· This study aims at evaluating the effect of ultrafine granulated copper slag (UGCS) on hydration development of blended cement and mechanical properties of mortars. The UGCS with the median particle size of μm and BET surface area of m2/g was used as a cement replacement to prepare blended cements. Hydration heat emission of blended cement and mechanical .
mortar, and concrete as raw materials for clinker, cement replacement,coarseand neaggregates[, ]. isprovides potential environmental as well as economic bene ts for all related industries, particularly in areas where a considerable amount of copper slag is produced. Despite increasing rate of reutilization of copper slag, the huge amount of ...
to using these wastes as materials to replace cement and aggregates in concrete making, it is noted from the studies made so far that these studies have been carried out either with cement being replaced by y ash/silica fume or ne/coarse aggregates being replaced by y ash/copper slag. e studies are very scarce which deal with replacing both
The slag of Sarcheshmeh copper complex in Iran has been utilized as replacement materials for part of cement. Copper slag is a waste material which could be considered a pozzolanic material. To fulfill the main requirements for an acceptable SCC, some important tests have been conducted on this type of concrete in this research and the results ...
Back in India, a study carried out by the Central Road Research Institute (CRRI) has also shown that copper slag can be used as a partial replacement for sand as fine aggregate in concrete up to 40 per cent in pavement grade concrete without any loss of cohesiveness and the compressive and flexural strength of such concretes is about 20 per cent higher than that of conventional cement concrete ...
In order to investigate the influence of high temperature and copper slag fine aggregate on corrosion mode of steel bar in concrete, high temperature test was carried out on concrete specimens with different copper slag replacing ratios, then the artificial accelerated chloride ion corrosion test was conducted on the specimens using drywet cycling immersion method, and the corrosion state of ...
This paper investigates the suitability of copper slag (CS) as a substitute to natural fine aggregate (NFA) in the concrete. The concrete mixes are prepared with 0%, 10%, 30%, 50%, 70% and of copper slag at w/c ratio. The behaviour of CS in the concrete was assessed by hardened properties such as compression, tension and flexure at 7 ...
Copper slag is interesting as an iron source for the production of such a CRC and can be added to concrete, either as alternative binder or as aggregate. By isothermal calorimetry and compressive strength tests it was found that the addition of copper slag as cement replacement is of minor interest.
The main objective of this study is to deal with the effects of cementitious materials in High Performance Concrete (HPC) for mix design of M40 grade concrete. Hence, copper slag which is the industrial byproduct is used as a partial replacement of fine aggregate by (0%, 15%, 30%, 45%, 60% and 75%) with 20% of fly ash by the volume of cement ...
of fine aggregate from copper slag in concrete. Asia Europe Key Words: Copper slag, Fine aggregate, Review, Replacement, Concrete, Strength. I. PREAMBLE Copper slag is one of the materials that can be considered as a waste material which could have a promising future in construction industry as partial or full substitute of any two
