In this process, a stream of abrasive grains called grit are propelled toward the workpiece. The addition of copper slag to cement increasedits initial and final setting times 6. Slag is a broad term covering all non metallic co products resulting from the separation of a metal from its ore, its chemistry and morphology depends on the metal being produced and the solidification process used. Study of the properties of concrete containing copper slag as. Use of copper slag in concrete cr4 discussion thread. Project report on copper slag in concrete today im going to be shared about project report on copper slag in concrete with advantages and disadvantages of copper slag in concrete so lets get started.
Use of copper slag microparticles in selfconsolidating concrete authors. Properties of concrete using copper slag as a substitute. As shown in table 1, copper slag has a high fe content and has been used as an iron adjustment material during the cement clinker production huang, 2001. The use of copper slag as a pozzolanic material for a partial substitute for ordinary portland cement and its effects on the hydration reactions and properties of mortar and concrete have been reported in several publications aljabri et al. Cost of concrete production reduces when copper slag is used as a fine aggregate in concrete as replacement.
D et al 4 investigated on various corrosion and durability tests on concrete containing copper slag as partial replacement of sand and cement. The percentage of copper slag used for replacement of river sand are 0, 25, 50 and 75 %. Copper slag used in this work was bought from sterlite industries india ltd, tuticorin, tamil nadu, india. The use of ground copper slag up to 15% by mass as a portland cement replacement increased the strength significantly 5. Polypropylene fibers are included as an additive to improve the performance of concrete. In this research, the use of copper slag as a replacement for fine aggregate is investigated. Properties of pavement quality concrete and dry lean. Slag cement is commonly found in readymixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products.
For this study, m40 grade of concrete is used and the tests are conducted for various replacement of fine aggregate using copper slag as 0%, 20%, 40%, 60%. Properties and effects of copper slag in concrete 48 table 2. The slag constitutes between 25 and 65 percent of the weight of the. Copper slag loose copper slag manufacturer from ahmedabad. Copper slag was used at increasing percentages per total sand mass to replace regular concrete sand.
The aim of this paper is to investigate the mechanical properties of selfconsolidating concrete scc incorporating ground copper slag gcs as cement replacement. Use of copper slag as construction material in bituminous. Due to its composition and physical form, copper slag can be used in the. Copper slag can possesses the physical, chemical and mechanical properties that can be used in concrete as a partial replacement for fine aggregate 1. Copper slag copper slag is a byproduct material produced from the process of manufacturing copper. Copper slag cs is a byproduct generated in the process of copper smelting and converting 1. Since waste copper slag with increased natural radioactivity is used in the assessed concrete, additional evaluation is carried out. The dry materials comprising cement, sand or copper slag and coarse aggregate were well mixed before the water was gradually. The use of copper slag as a replacement for fine aggregate in construction will reduce damage to the environment due to the waste resulting from the copper manufacturing process and help in saving natural resources. Project report on copper slag in concrete expert civil. Experimental investigation of copper slag replacement of fine. Copper or ferrous slag as substitutes for fine aggregates in concrete. Apr 15, 2020 contractors may also use copper slag in place of sand during concrete construction. Activation of pozzolanic reactions of the pulverized copper slag using 1.
Properties of concrete using copper slag as a substitute for. For the fiber reinforced high performance concrete incorporating copper slag as fine aggregates, the volume percentage of steel fiber is 2%, as shown in table 2. For this purpose m25 grade concrete was used and test were conducted for various proportion of sand replaced by copper slag at 0%, 20%, 40%, 60%, 80%, 100% and silica fume were used as an. Mechanical activation of granulated copper slag gcs is carried out in the present study for the purposes of enhancing pozzolanic activity for the gcs. One of the greatest potential applications for reusing copper slag is in cement and concrete production. Cs was used as fine aggregate up to 30% in the design of bituminous mixes like bituminous macadam, dense bituminous macadam, bituminous concrete and semidense bituminous concrete. Recovery of copper from reverberatory copper slag and. A series of concrete mixtures were cast in cubic moulds of size nominal size 100 mm with different proportions of pulverised copper slag ranging from 0%, 2. Many researchers had already found, copper slag possible to use as a material in concrete. Copper slag is just one of many different materials that may be used as abrasive grit. Central road research institute crri recommends usage of copper slag in. Since waste copper slag with increased natural radioactivity is used in the assessed concrete, additional evaluation is carried out taking into account. Paper open access preparation and mechanical properties. Such use was common in areas where smelting was done, including st helens and cornwall in england.
The waste copper slag can be used as abrasive tools, road. Copper slag is one such material which can be effectively used as replacement for sand in concrete. Copper slag can be used as an alternative material for coarse and fine aggregate, since it gives better performance in all the corrosion tests conducted and permeability is less when compared with control concrete. The replacement of copper slag by copper mine tailings reduced the compressive strength of the alkaliactivated cements fig. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials. Copper slag as fine aggregate for high performance concrete. As an essential business, agsco corporation will remain open in both illinois and new jersey. In this paper, the effect of replacement of fine aggregate with copper slag in polypropylene fiber reinforced concrete is studied and the results are.
The fineness modulus of the combination of copper slag and fine aggregate was roughly 2. Studies on use of copper slag as replacement material for. In this paper, m20 grade concrete was used and the tests were conducted for various proportions of copper slag replacement with sand of 0% to 60%, cement 0% to 20% and combination. Introduction traditionally soil, stone aggregates, sand. The concrete batches with copper slag addition presented greater mechanical and durability performance 7.
Use of copper slag as replacement material for river sand in cement concrete 0, 25, 50, 75 and 100 %. Properties of pavement quality concrete and dry lean concrete. Experimental investigation of copper slag replacement of. Fine grained powder of copper scum is used as a supplementary cementing material to concrete and in cement clinker production. Cement sand mortar joint thickness of 10 and 15 mm. Type v cement is used in concrete exposed to severe sulfate action.
Study of the properties of concrete containing copper slag. Although copper slag is widely used in the sand blasting industry and in the manufacturing of abrasive tools, the balance is disposed off. While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. Effect of copper slag as a fine aggregate on properties of concrete. Effect of copper slag as a fine aggregate on properties of. Paper open access preparation and mechanical properties of. Alite, compressive strength, concrete, copper slag, hydration, portlandite. Investigations on properties of concrete by partial. Many researchers have investigated the use of copper slag in the production of cement, mortar, and concrete as mixed with lime stone powder, dust, cement replacement, use as partial replacement of coarse.
Central road research institute crri recommends usage of copper slag in road construction and structural fill applications. Utilization of copper slag in cement and concrete sciencedirect. Use of waste copper slag, a sustainable material springerlink. It is different to the norm and its uniqueness lies in developing a data matrix sourced from 400 publications, contributed by 712 authors from 337 institutions in 40 countries from 1964 to 2015, on the subject of copper slag. M muranal2 1department of civil engineering, rural engineering college, hulkoti588205. Cement mortar mixtures prepared with fine aggregate made up of different proportions of copper slag and sand were. Performances of copper slag as partial replacement of. The physical and chemical properties of copper slag were investigated. Their role in enhancing concrete durability is well recognized in. M30 grade were prepared and the different strength parameters i.
Industrial wastes, such as slag, fly ash and silica fume are being used as supplementary cement replacement materials 1. The annual amount of copper slag in japan is two million tons. Thermal conductivity of selected materials and gases. Fine aggregates used for normal concrete were natural river sand and copper slag. Industrial waste waters from tanneries, paint and paper factories, coke plants. Use of copper slag microparticles in selfconsolidating concrete. Leaching of the copper slag leaching of the copper slag with concentrated sulphuric acid and distilled water, without increasing the digestion temperature, resulted in leaching recoveries of 45%, with a final copper content in the leach residue of 1. Study of the properties of concrete containing copper slag as a fine aggregate.
Copper slag is a byproduct yielded from a copper refinery. When used in this manner, the slag helps to improve the properties of the concrete, and also serves as a form of recycling. Lightweight concrete with copper slag waste as sand substitution. Copper slag cs is produced as waste from roasting of copper, in which sulphur as so 2 is eliminated. Therefore, it is recommended that 50% of copper slag can be used as replacement of sand and 18% fly ash can be used as replacement of cement in order to obtain high strength concrete.
Many researchers have investigated the use of copper slag in the production of cement, mortar and concrete as raw materials for clinker, cement replacement, coarse and fine aggregates. The use of copper slag in the concrete industry as a replacement for cement can have the benefit of reducing the costs of disposal and help in protecting the. Further, copper slag is also used in the production of cement, mortar, and concrete as a raw material for clinker, cement replacement, coarse and fine aggregates. Mixes without copper slag were also made to serve as control mixes. They have been successfully used in the construction industry as a portland cement substitute.
Copper slag is mainly used for surface blastcleaning. Copper slag is procured from mythri metallizing india company, bangalore, karnataka, india. The slag serves as a fine, or binding agent, which helps hold the larger gravel particles within the concrete together. Holistic analysis of waste copper slag based concrete by. Lifecycle assessment of highstrength concrete mixtures. The study conducted by crri shows that use of copper slag in concrete. Use of copper slag and fly ash in high strength concrete. It has been estimated that for every ton of copper produced, there are about 2. Today im going to be shared about project report on copper slag in concrete with advantages and disadvantages of copper slag in concrete so lets get started. Contractors may also use copper slag in place of sand during concrete construction. Since the main composition of copper slag is vitreous fesio 3, it has low melting point and could reduce the calcination temperature for cement clinker. Fine grained powder of copper slag can be used as a supplementary cementing material to concrete and in cement clinker production.
Introduction high strength concrete hsc is widely used in the. It was also observed that for increased partial replacement of copper slag beyond 40%, the strength of copper slag concrete decreases. Slag cement benefits and use in concrete slag cement news. Copper slag, in amounts of 20, 40, 60, 80, and 100 percent, was substituted for fine aggregate in cement mortar and concrete. Workability and bleeding of green concrete, compressive strength, flexural strength at 7 and 28 days, drying shrinkage and abrasion resistance were measured for all the concrete mixtures. Pdf lightweight concrete with copper slag waste as sand. It was found that water absorption of copper slag was very low as compared with the natural sand and workability of concrete is affected due to it. Water containing inorganic salts such as manganese, tin, zinc, copper, or lead. This work focuses on the use of copper slag, as a partial replacement of sand for use in cement concrete and building construction. Partial replacement of copper slag as fine aggregate.
Copper slag can be utilized as fine aggregate in cement mortars, normal concrete and also as aggregates coarse in concrete high strength. Copper slag can be used in concrete production as a partial replacement for sand. Aug 20, 2014 the percentage of copper slag used for replacement of river sand are 0, 25, 50 and 75 %. The reaction was exothermic and the measured temperature of the reaction. Corrosion and leaching studies in blended copper slag. Hsc made with copper slag as a fine aggregate at constant workability and studied the effect. The strength was found to maximum at 40% of copper slag replacement with sand. The aim of the research is a comprehensive evaluation of concrete using the eipi method. Thermal conductivity of some selected gases, insulation products, aluminum, asphalt, brass, copper, steel and other common materials. The copper slag has been used for cement material, sand blasting.
A vibration mill mills the gcs for 1, 2, and 3 h to produce samples with speci. Other concrete mixtures were then prepared by substituting 20%, 40%, 60%, 80% and 100% copper slag in control mix. Copper slag, or fayalite slag, is a byproduct obtained during the matte smelting, converting and refining of copper fig. Abstract copper slag is one of the materials which is considered as waste materials in the production of. The percentage of copper slag added by weight ranged between 10100% of sand used in concrete. The behaviour of concrete by partial replacement of fine. Introduction high strength concrete hsc is widely used in the construction of highperformance structures such as high rise buildings, long span bridges, etc. In the evaluation the compressive strength of concrete and its durability properties represented by sorptivity and air permeability are taken into account. Effects of copper slag as sand replacement in concrete. Thermal conductivity is a material property that describes ability to conduct heat. Introduction traditionally soil, stone aggregates, sand, bitumen, cement etc. Herein, scc has been produced using gcs as cement replacement by weight ratios of 5, 10, 15, 20, 25, and 30%.
Partial substitution of copper waste in concrete with shows good resistance to sulphate attack. Effect of copper slag on strength of polypropylene fiber. Use of copper slag in concrete and cement mortar as. Hence, by containing this waste material in concrete, one can not only remove the environmental concerns but. The physical and chemical of fine aggregates are shown in table. The global production of refined copper over the past eight years. In this experimental study copper slag is used in concrete as replacement material of fine aggregate. Plaster ability of use of copper slag for partial replacement material for river sand. Use of copper slag microparticles in selfconsolidating. Material and methods materials were collected for both steel reinforced and bamboo reinforced concrete. As such, it is indicating lesser permeability of copper slag admixed concrete. It indicates that copper slag the can be utilized as supplementary cement replacement material in concrete. Copper slag is a byproduct obtained during smelting and refining of copper. As per astm c1202, the value obtained for copper slag admixed concrete is graded under the category low.
Highstrength concrete incorporating copper slag and ground. Synopsis consolidating 125 studies undertaken since 1989, the effects of copper slag cs used as sand on concrete properties are discussed. Lifecycle assessment of highstrength concrete mixtures with. The optimum content of copper slag as replacement of cement is recommended as 10%. Copper slag is used as a building material, formed into blocks. Highstrength concrete incorporating copper slag and. Many researchers have already found it possible to use copper slag as a concrete aggregate, because copper slag has similar particle size characteristics likely to that of sand. Concrete mixtures were prepared using different proportions of copper slag as partial and full replacement of fine aggregate.
434 740 976 47 86 1397 1084 637 1049 340 940 582 1015 728 1496 1495 57 325 989 249 801 858 778 402 678 880 1205 470