Copper slag is a hard, cubical, and aggressive sandblasting media. Since the copper smelting slag contains high content of fe, cu and valuable metals, interest in recycling it is increasing. Use of copper slag in concrete and cement mortar as. Most concrete made with slag cement will have less. Slag substitution as a cementing material in concrete mdpi. Performances of copper slag as partial replacement of cement. Slag cement benefits and use in concrete slag cement news.
The use of copper slag in cement and concrete provides potential environmental as well as economic benefits for all related industries, particularly in areas where a considerable amount of copper slag is produced. Many concrete engineers are eager to find fine aggregate sources other than the traditional river and sea sand. However, the economic considerations need further evaluations in different areas. Copper slag has also gained popularity in the building industry for use as a fill material. Copper slag is a byproduct obtained during matte smelting and refining of copper. During smelting, impurities become slag which floats on the molten metal. The copper slag obtained may exhibit pozzolanic activity and may therefore be used in the manufacture of addition. Slag cement helps reduce permeability, sulfate attack, and alkalisilica reaction creating a longer lasting and more resilient concrete. The use of a chilean copper smelter slag in the manufacture of cement mortars. The annual amount of copper slag in japan is two million tons. Under activation with naoh, it can exhibit cementations property and can be used as partial or full replacement for portland cement. Use of copper slag in the manufacture of portland cement.
Concrete mixtures were prepared using different proportions of copper slag as partial and full replacement of fine aggregate. A study on the recovery of iron from copper slag with temperature. As an essential business, agsco corporation will remain open in both illinois and new jersey. The use of copper slag in concrete provides potential environmental as well as economic benefits to the construction industry. Many researchers have investigated the use of copper slag in the production of cement, mortar and concrete as raw materials for clinker, cement replacement. Al jabri department of civil and architectural engineering. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield. Product and company identification trade name abrasives grit description copper slag supplier pan marine blasting abrasives pte ltd contact info address. Experimental study on partial replacement of copper slag and flyash for fine aggregate and cement and pva fiber as reinforcement in concrete a. The utilization of copper slag for applications such as portland cement replacement in concrete, or as raw material has the.
The effect of ground copper slag gcs on the strength and fracture of cement based materials is studied. This number is a motivation for the researchers to study the copper slag as aggregate or cement replacement in concrete. If so, it will be solving environmental problem on one hand, and strengthening soft clay at the same time. Copper slag can also be used as a building material, formed into blocks. Pdf hydration and strength development in blended cement. It is a byproduct obtained during the matte smelting and refining of copper. Currently, about 2600 tons of copper slag is produced per day and a total accumulation of around 1.
It is a recovered industrial byproduct of an iron blast furnace. The oxides in copper smelting slag include ferrous feo, ferric oxide fe2o3, silica sio2 from flux, alumina ai2o3, calcia cao and magnesia mgo. The global production of refined copper over the past eight years is. Properties and effects of copper slag in concrete 46 properties and effects of copper slag in concrete m. Behaviour and experimental study on concrete as partial.
Utilization of soil stabilization with cement and copper. While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. Use of recycled copper slag in cementtreated singapore. Copper slag as fine aggregate for high performance concrete k. The use of copper slag in cement and concrete provides potential environmental as well as economic benefits for all related industries, particularly in areas where a considerable amount of copper. In addition, a feedforward back propagation neural network is proposed to predict elastic modulus, failure strain. Performances of copper slag as partial replacement of. Copper slag as fine aggregate for high performance concrete. In this paper, some characteristics of concrete with copper slag will be clarified. Nevertheless, these methods cannot e ciently recover a high content of iron and valuable metal in copper smelting slag. Given its chemical and mineralogical characteristics, copper slag, a solid industrial byproduct, may serve as a partial substitute for silica and hematite in raw mixes used to manufacture portland cement clinker.
Slag cement benefits and use in concrete slag cement is a hydraulic cement formed when granulated blast furnace slag ggbfs is ground to suitable fineness and is used to replace a portion of portland cement. Up to 15 percent by mass of gcs was used as a portland cement replacement. To check the variety of compressive strength, split tensile strength and flexural strength test, comes about by incomplete supplanting the sand 0% to 30% with copper slag and the cement 0% to 15% with ggbs contrasted and controlled concrete and plotting the comparing graphs independently. Assessment of concrete pulverised with copper slag as partial. Contractors may also use copper slag in place of sand during concrete construction. Its bulk density and angular shape give it an aggressiveness that provides clean, fastcutting action, considerably increasing production rates.
National institute of technology, surat, gujarat abstract. Introduction traditionally soil, stone aggregates, sand. It was primarily blue or green and was formerly chipped away and melted down to make glassware products and jewelry. Jan 16, 2017 partial replacement of fine aggreggate by copper slag and cement by fly ash 1. The strength and fracture toughness of concrete samples were studied. Utilization of copper slag in cement and concrete request pdf. The percentage of copper slag used for replacement of river sand are 0, 25, 50 and 75 % cement sand mortar joint thickness of 10 and 15 mm plaster ability of use of copper slag for partial replacement material for river sand use of copper slag as replacement material for river sand in cement concrete 0, 25, 50, 75 and 100 %. The use of industrial byproducts such as fly ash and slag have become very prevalent in soil stabilization owing to its suitable physical and mechanical properties, and economical advantages. It was also ground into powder to add to glazes for use in ceramics. Plaster ability of use of copper slag for partial replacement material for river sand. The effect of copper slag on the hydration and mechanical.
Evaluation of copper slag based on cement mortar in brick masonry construction. To be sure,the slag is a combination of oxides of mpurities in the copper ore that float to the top of the melt and form as a glass. Independent studies have shown it to be the fastest cutting slag abrasive. Copper slag, or fayalite slag, is a byproduct obtained during the matte smelting, converting and refining of copper fig. Use of waste copper slag, a sustainable material springerlink. Copper slag is one of the byproduct materials from the copper smelting. Mechanical activation of granulated copper slag and its.
Use of copper slag in the concrete industry as a replacement for cement andor. Slag cement is commonly found in readymixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products. Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1. Utilization of flotation wastes of copper slag as raw material in cement production, journal of.
Pdf leaching behavior of aluminum, copper, iron and zinc. Mining waste is one type of special waste when epa proposed regulations for managing hazardous waste under subtitle c of resource conservation and recovery act rcra on december 18, 1978 43 fr 58946, the agency deferred hazardous waste requirements for six categories of wastewhich epa termed special wastesuntil further study and assessment. Copper slag also exhibits pozzolanic properties since it contains low cao. Durability of concrete with copper slag fine aggregate. The copper slag contains a high content of silica and iron. Typically it is composed of ferro silicate material and oxides formed when the molten slag is quenched in cold water. Here we are using opc of 53 grade, well graded coarse and fine aggregate.
Effect of copper slag as a fine aggregate on the properties of cement. The slag or cement can release, collapse or fall unexpectedly. Copper slag di ers by chemical composition and structure, depending on the type of processing. 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. Pdf effect of ground copper slag on strength and toughness.
An innovated application of reutilize copper smelter slag. Experimental investigation of copper slag replacement of fine aggregate ppt free download as powerpoint presentation. The use of granulated copper slag as cement replacement in. 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. Partial replacement of copper slag as fine aggregate. Optimal compressive and flexural strength values are achieved with 5% of cement substitution by copper slag.
Good performance of copper slag as fine and coarse aggregates in normal concrete is the basis for researchers to. The copper scum which we used had collected from a dealer of hindustan copper limited at vishakhapatnam. The cement has been replaced by ggbs accordingly in the range of 0% without ggbs, 5%, 10%, 15%, and 20% by weight of cement for m25 mix. Copper slag cs is a byproduct generated in the process of copper smelting and converting 1. The pozzolanic activity of copper slag is similar to that of fly ash. Experimental investigation of copper slag replacement of fine. Copper slag is a byproduct of copper extraction by smelting. In the present study, it has been attempted an innovated application, i. The solution final ph is the most important factor affecting the removal of iron and silica from the leach solution and the overall metal recovery.
The paste is composed of cement, water, and entrained air and ordinarily constitutes 20 to 40 percent of the total volume. Therefore, this study was intended to recover fecu alloy from the copper smelting slag. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide. A slag byproduct of such workings was a colorful, glassy, vitreous material found on the surfaces of slag from ancient copper foundries.
Up to 15% by weight of copper slag was used as a portland cement replacement. Molten slag diverted from the iron blast furnace is rapidly chilled. During the process, around 800,000t of copper slag is generated within a year. An experimental study on properties of strength of. Box 555 gresik 61151 jawa timur indonesia telephone number. Conclusion by our project, we conclude that strength of concrete increased by the replacement of msand by copper slag, saves concrete material cost. From mortar strength tests with a cementslagwater ratio of 120. Concrete was wont to verify numerous mechanical properties. Copper slag during the manufacture of copper metal. Slag cement is a hydraulic cement formed when granulated blast furnace slag ggbfs is ground to suitable fineness and is used to replace a portion of portland cement. Slag cement is a recovered material from the iron production process, thus reducing the environmental impact of concrete mixtures. Various mortar and concrete mixtures were prepared with different proportions of copper slag ranging from 0% for the control mixture to 100% as fine aggregates.
Effect of copper slag and cement bypass dust addition on mechanical properties of concrete, construction and building materials, vol. The construction of the furnace is basically related to that of the iron blast furnace, but there are. These qualities show that the density of cs is in contrast to that of the fine aggregate. The use of granulated copper slag as cement replacement. Therefore if you reuse or recycle any air blasting materials you may please be aware that the size wise distribution of the particles have changed and therefore the specifications are not the same as that for virgin abrasives. It has been estimated that for every ton of copper produced, there are about 2.
Pdf the use of copper slag cs as fine aggregate and partial substitute of cement for mortar preparationwas studied. A study of differ ent nonferrous vodjv such as copper, nickel, and lead has indicated that copper slag has the potential for application as a cementitious material. Durability characteristics of copper slag concrete with fly ash the properties of fine aggregate, cs and coarse aggregate are given in table 2 15. Furthermore, it can be concluded that the utilization of copper slag in cement and concrete provides additional environmental as well as technical benefits for all related industries, particularly in areas where a considerable amount of copper slag is produced. Copper slag from different dumps in the atacama region used in. Partial replacement of fine aggreggate by copper slag and. Research paper performance of copper slag on strength. In this paper the effect of copper slag on strength characteristics of cementtreated singapore marine clay is studied by varying the percentage of copper slag at 100% water content and constant workability of cementclay mix. A study on reduction of copper smelting slag by carbon for. Highstrength concrete incorporating copper slag and ground. The benefits of such substitution include lower production costs and energy savings.
Copper slag is a byproduct produced during smelting of copper, which is then processed into abrasive products. Hydration reactions were studied through semiquantitative xray diffraction and. Slag and cement can buildup or adhere to the walls of a confined space. A study on effective replacement of fine aggregate using. The use of ground copper slag up to 15% by mass as a portland cement replacement increased the strength significantly 5. Use of recycled copper slag in cementtreated singapore marine.
The percentage of copper slag used for replacement of river sand are 0%, 10%, 20%, 30%, 40%, 50%. Copper slag is an aggressive abrasive frequently used in new steel and steel maintenance applications. Slag that is quenched in water produces angular granules which are disposed of as waste or utilized as discussed below. The high fe content in the copper smelting slag can be used as a highvalue element that can replace the foundry pig iron. Project report on copper slag in concrete expert civil. Durability characteristics of copper slag concrete with fly ash. Studies on use of copper slag as replacement material for. In this paper the effect of the incorporation of the copper slag in cement is measured. Within the cement and concrete industry, copper slag can be used as cementitious material. Experimental study on partial replacement of copper slag. We do have a slightly less aggressive water cooled copper slag also available.
In indonesia, around 400,000 tons of copper slag are produced per year by freeport company and newmont company 3. The potential uses of copper slag are a partial substitute in cement and aggregate in concrete 7,8. Notably, a proofofconcept experiment with an addition of a 45 wt. This study explores the effect of aqueous chemical environment on the dissolution rate of the minerals. Study of strength properties of concrete by partial.
Effects of copper slag as sand replacement in concrete. The use of copper slag reduces the early age strength 1 day while increasing it beyond 7 days 4. The global production of refined copper over the past eight years. Chapter 1 components of concrete concrete is made up of two components, aggregates and paste. Copper slag is a byproduct yielded from a copper refinery. The results show that when workability of cementtreated clay with and without copper slag is kept constant, the unconfined compressive strength at 28 days curing. Recovery of copper from reverberatory copper slag and. Dissolution of olivines from steel and copper slags in.
Copper slag loose copper slag manufacturer from ahmedabad. The percentage of copper slag added by weight ranged between 10100% of sand used in concrete. Copper slag can be utilized as fine aggregate in cement mortars, normal concrete and also as aggregates coarse in concrete high strength. Study of strength properties of concrete by partial replacement with fly ash and copper slag in cement and fine aggregate g swathi1, g dinesh 2 1 assistant professor, civil engineering department, aditya engineering college, surampalem, ap. The production of nano silica from the dissolution of olivine is an economic option when. In this paper the effect of copper slag on strength characteristics of cement treated singapore marine clay is studied by varying the percentage of copper slag at 100% water content and constant workability of cement clay mix. Sathish 2 research scholar1, research scholar 2 department of civil engineering. Also, copper slag exhibits pozzolanic properties since it contains a low cao content and other oxide such as al2o3, sio2, and fe2o3. Pdf a study on reduction of copper smelting slag by. The addition of copper slag to cement increasedits initial and final setting times 6. Utilization of copper slag in cement and concrete sciencedirect. It is the byproduct obtained from refining of copper and matte smelting. Smelting gresik smelter and refinery address desa roomo, kecamatan manyar po. The copper slag has been used for cement material, sand blasting.
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