Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a. Water was added into the mixture of cement and copper slag to achieve the moisture content of approximately 30 wt. 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. Copper slag is a byproduct obtained during matte smelting and refining of copper. Partial replacement of fine aggreggate by copper slag and cement by fly ash 1. Slag cement is commonly found in readymixed concrete, precast concrete, masonry, soil cement and high temperature resistant building products. Slag that is quenched in water produces angular granules which are disposed of as waste or utilized as discussed below. Effect of lime and cement on the strength improvement of. 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. Use of copper slag and cement bypass dust as cementitious. Copper slag as fine aggregate for high performance concrete. The high fe content in the copper smelting slag can be used as a highvalue element that can replace the foundry pig iron. The copper slag contains a high content of silica and iron. But the addition of higher amount of copper slag resulted in the decrease of strength due to free h2o content increase in the mixture.
M30 grade were prepared and the different strength parameters 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. Totally, fifteen concrete mixtures were prepared to incorporate copper slag in place of. 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. The effect of ground copper slag gcs on the strength and fracture of cement based materials is studied. A study on reduction of copper smelting slag by carbon for. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield. Also, copper slag exhibits pozzolanic properties since it contains a low cao content and other oxide such as al2o3, sio2, and fe2o3. Abstract copper slag is one of the materials which is. The use of a chilean copper smelter slag in the manufacture of cement.
Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields. Effects of copper slag as sand replacement in concrete. Slag substitution as a cementing material in concrete mdpi. A study on the recovery of iron from copper slag with temperature. Copper slag from different dumps in the atacama region used in. Study of the properties of concrete containing copper slag as a fine aggregate.
Copper slag was characterized from the chemical, mineralogical and size distribution point of view. Properties and effects of copper slag in concrete 46 properties and effects of copper slag in concrete m. The study concludes that substituting 60% sand with copper slag results in better. When used in this manner, the slag helps to improve the properties of the concrete, and also serves as a form of recycling. For concrete, containing copper slag, a possible mixing design is given in. Concrete mixtures were prepared using different proportions of copper slag as partial and full replacement of fine aggregate. During smelting, impurities become slag which floats on the molten metal. Since the copper smelting slag contains high content of fe, cu and valuable metals, interest in recycling it is increasing. In addition, silica fume is used in combination with copper slag to make concrete structures more durable. Pdf deposited copper slag originated from a region mansfeld saxonyanhalt, germany was. Utilization of copper slag in cement and concrete sciencedirect.
National institute of technology, surat, gujarat abstract. The use of copper slag as a partial replacement of cement is an effective method of pollution reduction and conservation of resources, since it reduces cement use. Independent studies have shown it to be the fastest cutting slag abrasive. Cement mortar mixtures prepared with fine aggregate made up of different proportions of copper slag and sand were. A byproduct of the smelting process, slag consists mainly of copper sulfide, copperiron sulfide, and copperarsenic sulfide. In the present study, it has been attempted an innovated application, i. 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. It is a recovered industrial byproduct of an iron blast furnace.
Experimental investigation of copper slag replacement of fine. 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. The use of copper slag in cement clinker production, and the effects of copper slag on the properties of portland cement mortar and concrete in the form of cement replacement, coarse and fine. Buildings free fulltext holistic analysis of waste copper slag. Copper slag is a byproduct produced during smelting of copper, which is then processed into abrasive products. Slag works very well as a loose aggregate and can be ground to produce a more even grain. Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1. Performances of copper slag as partial replacement of. The use of a chilean copper smelter slag in the manufacture of cement mortars was studied. The use of ground copper slag up to 15% by mass as a portland cement replacement increased the strength significantly 5. Copper slag is a byproduct created during the extraction of copper from copper ore. Corrosion and leaching studies in blended copper slag. Aug 12, 2019 the use of copper slag as a partial replacement of cement is an effective method of pollution reduction and conservation of resources, since it reduces cement use. In addition, it was determined that using cement bypass dust as an activating material will work better than using lime.
Copper slag is a hard, cubical, and aggressive sandblasting media. The addition of copper slag to cement increasedits initial and final setting times 6. It is also mixed with materials for making roadways, used as. 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. The copper slags with different addition levels of 15, 30 and 45 wt. Behavior of concrete using copper slag as a strength parameter in low cost construction work. Pdf use of copper slag in cement mortar researchgate. Fe removal from the leaching of copper slag is done by the formation of a metal hydroxide. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and. The optimum copper slag and cement bypass dust to be used is 5%. Properties and effects of copper slag in concrete 48 table 2. The benefits of such substitution include lower production costs and energy savings. Behavior of concrete using copper slag as a strength. As partial replacement of cement, a gradual improvement on compressive and flexural.
Gibbs free energy changes of the carbon reduction reaction in the copper smelting slag. Partial replacement of fine aggreggate by copper slag and. Use of waste copper slag, a sustainable material springerlink. Concrete proportioning is the selection of proportions of ingredients to make the most economical use of available materials to produce concrete of the required properties why use slag cement in concrete. Cement mortar mixtures prepared with fine aggregate made up of different proportions of copper slag and sand were tested for use as masonry mortars and plastering. Research on the effect of copper slag as a fine aggregate. Recovery of copper from copper slag and copper slag flotation tailings 77by oxidative leaching leaching with ferric sulphate the slag and the slag flotation tailings were leached with ferric sulphate in 1 m sulphuric acid. Water was added into the mixture of cement and copper slag to achieve the moisture. In concrete, slag cement may be proportioned from 20 to 80 percent depending on the application. Request pdf utilization of copper slag in cement and concrete copper slag is a byproduct obtained during matte smelting and refining of copper. The copper slag has been used for cement material, sand blasting. Investigations on properties of concrete by partial.
The shortage of waste landfill space for waste disposal and the high demand for fill materials for land reclamation projects in singapore have prompted a study on the feasibility of using spent copper slag as fill material in land reclamation. Pdf partial replacement of copper slag as fine aggregate. Abstract copper slag is one of the materials which is considered as waste materials in the production of. Investigating the effects of copper slag and silica fume. Study of the properties of concrete containing copper slag as. A test certificate and sieve analysis report for omgrit. The slag serves as a fine, or binding agent, which helps hold the larger gravel particles within the concrete together. Typically it is composed of ferro silicate material and oxides formed when the molten slag is quenched in cold water. Apr 15, 2020 contractors may also use copper slag in place of sand during concrete construction. Test cubes of mortar were built according to the standard nch 2260, of1996 inn, 1996a in the form of prismatic bars having, dimensions of 40 x 40 x 160 mm width, height and length with mixtures of cement, water and sand.
The use of copper slag as a partial substitute for cement in mortar. Twenty columns measuring 150 mm x150 mm x 2500 mm were tested for monotonic axial compression load until failure. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Experimental investigation of copper slag replacement of. The physical and geotechnical properties of the spent copper slag were first assessed by laboratory tests, including hydraulic conductivity and shear. In copper slagfree activated binders an optimal curing temperature of 75c was. The results obtained showed that the mortars manufactured with copper slag. New business to reuse anacondas slag a new business will be opening its doors this year in anaconda to process slag for use in the natural resource extraction industry. Copper slag, as part of a series of five, the book aims to promote the use of sustainable construction materials. Pdf the use of copper slag cs as fine aggregate and partial substitute of cement for mortar preparationwas studied.
Comparison of convention concrete with copper slag replaced concrete 0% 10%cs 20%cs 30%c 40%cs 0 0. Use of copper slag cs as a replacement for fine aggregate fa in rc slender columns was experimentally investigated in this study. We do have a slightly less aggressive water cooled copper slag also available. This work focuses on the use of copper slag, as a partial replacement of sand for use in cement concrete and building construction. Additional studies should investigate the strength and durability when copper slag and cement bypass dust are used in concrete mixes. The physical and geotechnical properties of the spent copper slag were first assessed by laboratory tests, including hydraulic conductivity and. Copper slag, or fayalite slag, is a byproduct obtained during the matte smelting, converting and refining of copper fig. An innovated application of reutilize copper smelter slag. Performances of copper slag as partial replacement of cement.
Copper slag technical data sheet ignite procurement. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron slag a byproduct of iron and steelmaking from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. The percentage of copper slag added by weight ranged between 10100% of sand used in concrete. Copper slag was characterized from the chemical, mineralogical and.
Recovery of copper from reverberatory copper slag and. Copper slag is a byproduct created during the copper smelting and refining process. An innovated application of reutilize copper smelter slag for. Mineralogical analysis to the copper slag showed the presence of the following phases.
Studies on use of copper slag as replacement material for. When optimum percentage 6% of lime was added to copper slag stabilized soil, the strength improvement was 2. M muranal2 1department of civil engineering, rural engineering college, hulkoti588205. After the wearing process, copper slag retains most of its original properties, and remaining an environmental problem. Up to 15% by mass of ground copper slag was used as a portland cement replacement. Concrete proportioning is the selection of proportions of ingredients to make the most economical use of available materials to produce concrete of the required properties. Investigating the effects of copper slag and silica fume on. Xrd showed that the 10% of copper slag slightly reduces the hydration of. Cement and lime are usually used as binding materials, while the sand binder is mixed as fine aggregates and crushed stones, gravel, broken bricks clinker is employed as coarse. Good performance of copper slag as fine and coarse aggregates in normal concrete is the basis for researchers to. The sand particles should be free from any clay or inorganic materials and found to be hard and durable.
Pdf new residuefree processing of copper slag from smelter. Concrete experimental investigation of copper slag replacement of fine aggregate. The annual amount of copper slag in japan is two million tons. The concrete mixture included ordinary portland cement opc cement, fine aggregate, 10 mm coarse aggregate, and cs. Pdf effects of copper slag as a replacement for fine. Therefore, this study was intended to recover fecu alloy from the copper smelting slag.
Leaching is optimum if silica gel free solutions and good filterable residue are obtained. View detailed export data, price, monthly trends, major exporting countries, major ports of copper slag export data and price of copper slag zauba skip to main content. Holistic analysis of waste copper slag based concrete by means of eipi. Copper slag is a byproduct of copper extraction by smelting. Notably, a proofofconcept experiment with an addition of a 45 wt. Jan 16, 2017 partial replacement of fine aggreggate by copper slag and cement by fly ash 1. While there are many applications and benefits of slag cement, a few are highlighted below and detailed information sheets are located here. Copper slag loose copper slag manufacturer from ahmedabad. A synthetic mineral blasting abrasive manufactured by granulation in water of the slag arising from copper smelting processes.
Experimental investigation of copper slag replacement of fine aggregate ppt free download as powerpoint presentation. Use of copper slag in the manufacture of portland cement. Copper slag is a byproduct yielded from a copper refinery. As refineries draw metal out of copper ore, they produce a large volume of nonmetallic dust, soot, and rock. The oxides in copper smelting slag include ferrous feo, ferric oxide fe2o3, silica sio2 from flux, alumina ai2o3, calcia cao and magnesia mgo. Feasibility assessment of incorporating copper slag as a sand. The pozzolanic activity of copper slag is similar to that of fly ash. On the other hand, the copper slag presented a real density of 3,817 kgm 3, by which it is considered a heavy aggregate. The ferric iron concentration was varied in the range from 5 gdm3 to.
Assessment of the use of spent copper slag for land. The global production of refined copper over the past eight years. The use of copper slag reduces the early age strength 1 day while increasing it beyond 7 days 4. Study of the properties of concrete containing copper slag. It is essentially an iron silicate with trace metals bound in an amorphous glass in the form of complex silicates and oxides. A study on the recovery of iron from copper slag with.