This could have been caused by several factors relating to the mix proportioning, as well as the particle packing of aggregates in both sets of mixes, eliminating the advantage that could be accrued by the use of quenched CS as a cement constituent in the form of enhanced pozzolanic activity. I didn't think it was really connected to the material that was being used. Therefore, it is customary to carry out matte smelting in stages, with the slag from the first matte smelting stage discarded, and slags from subsequent stages recycled to the first stage. Effect of increasing air-cooled and quenched copper slag (CS) content on the compressive strength of concrete. It also makes concrete more fire resistant, and helps to slow the spread of heat and flames. Since the copper smelting slag contains high content of Fe, Cu and valuable metals, interest in recycling it is increasing. Kedia slag distinguishes from light-weight blasting slag, due to its high density property. When specimens were cured at room temperature, this strength was achieved after 90 days of curing, although increasing the curing temperature to 65°C led to a similar strength being reached after 7 days. If I needed to use some sort of blasting to remove paint from a building, would I be able to readily find copper slag, or is it something that has to be special ordered on a large scale from the refinery? It is among the lowest cost per square foot abrasive, it has low consumption on new steel and it is environmentally friendly! Figure 5.12. Its bulk density and angular shape give it an aggressiveness that provides clean, fast-cutting action, considerably increasing production rates. These materials are usually fine, but when they react with water thanks to the mine opening, they can turn to liquid form and create dangerous chemicals that also run into the water system. The fact that copper is a necessary for plumbing installations allows for part of its value. It is composed of ferrosilicate material and oxide when the slag is quenched in the cold water. Silica sand, which represents the most popular blasting medium and concrete fine currently in use, poses serious health risks when inhaled. It was also … Data from Oracle Mining Corp. Why We Belive in Copper’s Long-term Value. 7.11). Matte, crude mixture of molten sulfides formed as an intermediate product of the smelting of sulfide ores of metals, especially copper, nickel, and lead.Instead of being smelted directly to metal, copper ores are usually smelted to matte, preferably containing 40–45 percent copper along with iron and sulfur, which is then treated by converting in a Bessemer-type converter. Learn more about ura… When added to concrete, it makes the paved surface less porous, which minimizes problems with moisture and freezing. I was also curious how the copper slag can be less harmful for your health compared to silica. Copper is a relatively valuable metal, and it is used in many residential and consumer products. Copper slag blasting. Copper slag is mainly used for surface blast-cleaning. Copper smelting slag is an industrial by product obtained from the process of smelting copper, and about 1.5 million tons of smelting slag is generated annually. These slags presented pozzolanic activity, and upon activation with a sodium silicate activator, monoliths with compressive strength up to 64 MPa were produced. Additionally, the test specimens that have previously been reported to have a stability issue in the fresh state (as discussed in Section 4.3.2) may suffer from poor compaction, and in such a scenario, the strength of concrete is likely to be affected by the inhomogeneity of the mix. Before going into detail, it is worth appreciating that the reported experimental strength data on such a wide scale and over a period of time can, to an extent, vary between studies. It is actually a byproduct of iron production. While the former creates a material with more crystalline phases, the rapidly quenched slag allows producing a material with a more amorphous structure, which can then be used as a cement constituent (Walker and Pavía, 2011). Because much of the CKD is unreacted raw materials, it is often returned to the production process. We use cookies to help provide and enhance our service and tailor content and ads. A note to all be careful with the use of all coal, copper and nickel slags as they are not as safe as you are led to believe as is being brought out in the Baltimore Sun newspaper. Granulated copper slag is more porous and therefore has lower specific gravity and higher absorption capacity than air-cooled copper slag. There are many other compounds besides copper that line the mines. However, the slag tends to be vitreous or “glassy,” which adversely affects its frictional properties (skid resistance), a potential problem if used in pavement surfaces. Can the slag from any other refining process be used for anything useful like was described here? Coal slag is by-product of coal-burning power plants, considered a “green” abrasive because it would otherwise be disposed of as waste. Ltd :According to new reliable research on Copper Slag Market, featuring a short universal view of the size of the market, geographical scope and key trends based on volume and value, … (2009a) because of a possible compaction problem in concrete due to low slump and Sudarvizhi and Ilangovan (2011, 2012) for using copper slag in conjunction with ferrous slag. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. The number of strength data tabulated in Table 4.3(b) for CS concrete having a water/cement ratio equal to the reference concrete is significantly greater than that in Table 4.3(a) for CS concrete having consistence equal to the reference concrete. Copper slag is generated out of copper concentrate while extracting copper in the copper smelting units. Copper is a heavy metal that is a commodity on many markets. Furthermore, for a given consistence, taking advantage of improved consistence resulting from the use of CS, the material can even be used to develop high-strength concrete and possibly high-performance concrete as well. Copper slag is a by-product created during the extraction of copper from copper ore. Mary McMahon Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a wiseGEEK researcher and writer. Copper slag also has a high strength-to-weight ratio, making it an effective option in concrete, or as a fill material under the roadway. Are you are an abrasive blast worker or employer, inspector, engineer, industrial hygienist, plant/facility owner or government/military employee who performs work associated with the use of coal and copper slag abrasives? Significant waste volumes are associated with copper production. This process makes the slag into a granule form resulting coarser and angular particles. A recent study evaluated the feasibility of activating ancient copper slags from the north of Chile,69 and identified notable differences in the mineralogy and chemical composition depending on the slag source. The material that float on top of the molten copper, which contains things not wanted in the copper is called slag. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000067, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000136, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000033, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000080, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000018, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000031, URL: https://www.sciencedirect.com/science/article/pii/B9780081020012000085, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000055, URL: https://www.sciencedirect.com/science/article/pii/B9780081003817000100, URL: https://www.sciencedirect.com/science/article/pii/B9780081009864000043, Sustainable Construction Materials: Copper Slag, 2017, Use of Copper Slag in Geotechnical Applications, Ravindra K. Dhir OBE, ... Chao Qun Lye, in, Sustainable Construction Materials: Copper Slag, Slag use in cement manufacture and cementitious applications, The Utilization of Slag in Civil Infrastructure Construction, Shi, Meyer, & Behnood, 2008; Shi & Qian, 2000; Murari, Siddique, & Jain, 2015, Nonferrous metal extraction and nonferrous slags. During smelting, impurities become slag which floats on the molten metal. Ores that contain copper in the U.S. are typically mined in large, open-pits. In this process, a stream of abrasive grains called grit are propelled toward the workpiece. Except for three sets of results showing unduly high values [see footnote of Table 4.3(b)], all the data obtained over the period 1987–2015 given in Table 4.3(b) were used in developing Figure 4.7, with a box-and-whisker plot at each CS level created to visualise data distribution and determine outliers. 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. Because of the limited data available in the literature for this option, no clear optimum level of CS can be identified in Table 4.3(a), but on average, the use of CS as a sand component gives a 5% increase in strength for CS concrete compared to normal concrete. Unlike many other fill materials, it poses relatively little threat to the environment. Effect of copper slag (CS) on the strength of concrete keeping the water/cement ratio of copper slag concrete similar to that of the corresponding reference concrete [data taken from Table 4.3(b)]. Copper slag is a by-product of copper extraction by smelting. This material represents a popular alternative to sand as a blasting medium in industrial cleaning. However, the slag will contain several percent of copper, and must be cleaned before discard. When mines extract copper, they often use sulfuric acid, which helps to separate the ore from the rest of the surrounding rock. Note ∗: The average data excluded the results of Al-Jabri et al. Data from Piatak, N.M.; Parsons, M.B. Copper slag is an abrasive blasting grit (by-product) made of granulated slag from metal smelting process and refining of copper in which sulphur dioxide is released. Slag that is quenched in water produces angular granules which are disposed of as waste or utilized as discussed below. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials. Fine copper slag has reportedly been used in HMA pavements in California and granulated copper slag has been incorporated into asphalt mixes in Georgia to improve stability. Airo Shot Blast Copper Slag is an aggressive abrasive frequently used in new steel and steel maintenance applications. Copyright © 2021 Elsevier B.V. or its licensors or contributors. However, by adopting the equal consistence design basis, the advantage could have been gained by reducing the water/cement ratio, as in this case the consistence has been shown to improve with increasing CS content. http://dx.doi.org/10.1061/(ASCE)MT-1943-5533.0001159, Copper Slag in Cement Manufacture and as Cementitious Material. Copper slag can also be used as a building material, formed into blocks. Table 4.3. However, in the United States this is not a general practice. I have heard of iron slag being used for things, although I'm not sure what they are. The absorption capacity of the material is typically very low (0.13%). Copper Slag is a good general purpose Abrasive, but in the finer sizes is exceptionally dusty. Is this right? The strength of concrete can increase with CS content, Figure 4.6(a); The strength of concrete can increase with CS content up to a varying optimum level and then decrease with increasing CS content, but the strength of CS concrete remains higher than that of normal concrete, Figure 4.6(b), or goes below the normal concrete level, Figure 4.6(c); The strength of concrete can decrease with CS content, Figure 4.6(d). Copper slag is a by-product created during the copper smelting and refining process. Copper slag abrasive is suitable for blast cleaning of steel and stone/concrete surfaces, removal of mill scale, rust, old paint, dirt etc. However, on the whole, the results do support the viewpoint that concrete designed with CS as sand should develop 5–10% higher strength than the corresponding natural sand concrete. General trends observed are summarised in Figure 4.6 and are described below: Figure 4.6. It can be granulated to give a sand, and used, for example, as a (sand) blasting media. The difference between the two methods of production greatly influences its use in PC-based materials, with the quenched granular material having a greater demand than the air-cooled CS. Air cooled, not water quenched. What are the Different Types of Sandblasting Media. Characteristics and utilization of copper slag—a review. When the iron is processed using a blast furnace, slag and iron both collect at the bottom of the furnace.The molten slag must first be separated from the molten iron. Using blasting or high-pressure spraying techniques, companies can use copper slag to clean large smelting furnaces or equipment. Cleaning of the primary slag is often economically justified and techniques including slow cooling and flotation, or pyrometallurgical or Copper Slag is a by-product of copper extraction by smelting. Copper slag is an abrasive blasting grit made of granulated slag from metal smelting processes (also called iron silicate). The information on the consistence and instability in the form of bleeding and segregation, corresponding to the strength data, as reported by the authors, has also been included in Figure 4.7. Overall, a polynomial regression is obtained, giving a correlation of 0.8087. Slag blasting is also used to remove rust, paint, and other materials from the surface of metal or stone. Indeed, this is likely to be the main contributor to the variable trends observed in the strength data provided in the literature, and this can clearly be seen from all the data presented Table 4.3 in two forms, namely the studies where, perhaps prudently, the two sets of mixes, CS mix and the corresponding reference mix without CS, were made to have the same consistence, and these results are presented in Table 4.3(a), and where the water/cement ratio was considered as the prime factor and kept constant, even if the consistence was to vary, and these results are presented in Table 4.3(b). Clearly, given the information available in the literature, there is scope for a fundamentally important study to be conducted to investigate the amorphous nature of the quenched glass and its pozzolanic reactivity, the variability attached to it and what benefits, if any, can be derived from it. Copper processing facilities are usually located near mining or extraction sites. Maybe this all depends on the size of the particles, but I thought most of the danger with breathing in dust was due to the size of the particles being able to enter the lungs. Reference: [1] Al-Jabri (2006), [2] Al-Jabri et al., 2009a; [3] Al-Jabri et al., 2009b; [4] Al-Jabri et al., 2011; [5] Alnuaimi, 2009; [6] Alnuaimi, 2012; [7] Amarnaath et al., 2015; [8] Ambily et al., 2015; [9] Anjana et al., 2015; [10] Anudeep et al., 2015; [11] Arivalagan, 2013; [12] Ayano and Sakata, 2000; [13] Bahadur and Nayak, 2012; [14] Brindha and Nagan, 2010a; [15] Brindha and Nagan, 2010b; [16] Brindha and Nagan, 2011; [17] Brindha et al., 2010; [18] Cachim et al., 2009; [19] Chavan and Kulkarni, 2013; [20] Cheong et al., 2007; [21] De Schepper et al., 2015; [22] Dharani et al., 2015; [23] Ghosh, 2007; [24] Gowda and Balakrishna, 2014; [25] Hwang and Laiw, 1989; [26] Illayaraja et al., 2014; [27] Jaivignesh and Gandhimathi, 2015; [28] Jebitta and Sofia, 2015; [29] Karthick et al., 2014; [30] Kayathri et al., 2014; [31] Kharade et al., 2013; [32] Koh and Lye, 2012; [33] Kumar, 2012; [34] Kumar and Mahesh, 2015; [35] Leema and Suganya, 2015; [36] Madany et al., 1991; [37] Madheswaran et al., 2014; [38] Madhu and Venkataratnam, 2015; [39] Mahendran and Arunachelam, 2015; [40] Mahmood and Hashmi, 2014; [41] Merinkline et al., 2013; [42] Mithun and Narasimhan, 2016; [43] Mithun et al., 2015a; [44] Naganur and Chethan, 2014; [45] Nataraja et al., 2014a; [46] Nataraja et al., 2014b; [47] Nazer et al., 2012; [48] Patil, 2015; [49] Patnaik et al., 2015; [50] Pazhani, 2010; [51] Ping, 2011; [52] Poozvizhi and Kathirvel, 2015; [53] Pradeep and Rama, 2014; [54] Prakash and Brindha, 2012; [55] Saxena, 2015b; [56] Priyanka and Thahira, 2013; [57] Rajkumar et al., 2015; [58] Resende et al., 2008; [59] Khan et al., 2015a; [60] Khan et al., 2015b; [61] Sabarishri et al., 2015; [62] Sakthieswaran and Ganesan, 2013; [63] Sakthieswaran and Ganesan, 2014a; [64] Sakthieswaran and Ganesan, 2014b; [65] Saraswathy et al., 2014; [66] Saxena, 2015a; [67] Shoya et al., 1997; [68] Shoya et al., 1999; [69] Shoya et al., 2003; [70] Srinivas and Muranal, 2015; [71] Sudarvizhi and Ilangovan, 2011; [72] Sudarvizhi and Ilangovan, 2012; [73] Suresh and Kishore, 2013; [74] Suresh and Ravikumar, 2015; [75] Sushma et al., 2015; [76] Tam, 2001; [77] Tamil et al., 2014; [78] Thomas et al., 2012; [79] Tiwari and Bhattacharya, 2013; [80] Tokuhashi et al., 2001; [81] Vamsi and Kishore, 2013; [82] Vamsi t al, 2013; [83] Velumani and Nirmalkumar, 2014; [84] Vimarsh et al., 2014; [85] Wu et al., 2010a. If you or a person you know can answer yes, you really need to read and share the below article that was published on The Baltimore Sun's front page, by Tim Wheeler, titled "Federal agency investigating sand-blasting hazards Contaminants in coal and copper slag pose risks, critics say.". Effect of air-cooled and quenched copper slag (CS), sourced from the same batch, on the compressive strength of mortars (CS 1 and CS 2 ground to 300 and 400 m2/kg, respectively). Often rightly so, since the high heavy metal content does not allow its use as a mineral product. The replacement of copper slag by copper mine tailings reduced the compressive strength of the alkali-activated cements (Fig. This elucidates that it might be possible to utilize existing stockpiles of copper slags for producing alkali-activated cements, and to contribute to remedying some of the existing environmental issues associated with the disposal of these slags. Very good question. Data from Gorai, B., Jana, R. K., & Premchand (2003). Is one material better than the other for certain situations, or are they both about equal? Under a constant water/cement ratio, with a given set of materials, and in the absence of particle size distribution data for the two sands, such a variable strength response with increasing CS content is most likely to be the outcome of varying particle packing, with the positive effect of CS as a sand material at a certain point (in this case up to 50/50 sand/CS content), being gradually eroded, and beyond a certain content (in this case 80% CS) it enters the negative field. What happens between the mining and refining process that makes the copper by-products nearly harmless? This possibly explains the variations in the trends observed in the strength development of concrete with increasing CS content of the sand used. Copper wire. In copper slag-free activated binders an optimal curing temperature of 75°C was identified, while in specimens containing 50–100 wt.% copper slag a higher curing temperature (90°C) yielded the best compressive strengths. Michigan Department of Transportation Specifications consider reverberatory copper slag to be a conventional coarse and fine aggregate for HMA pavement (Gorai et al., 2003). Mobasher, Devaguptapu, & Arino, 1996; Pavéz et al., 2004, Environmental Impact, Case Studies and Standards and Specifications, Alternative inorganic binders based on alkali-activated metallurgical slags, Sustainable and Nonconventional Construction Materials using Inorganic Bonded Fiber Composites. Some versions may contain heavy metal traces, which can contribute to air and water pollution. 7.13), depending on the curing temperature. @JimmyT - You are right that mining copper can have a major negative impact on the habitat around a mine, especially for the streams and waterways. It is known that the hardened properties of concrete are affected by its fresh properties. I don't know whether other materials would be harmful for the environment or not, either. It now appears from this article, OSHA has decided to soon ask the coal and copper slag companies that same question. It may also contribute to pollution and other environmental concerns. ; Seal, R.R., Characteristics and Environmental Aspects of Slag: A Review. Although it would be expected that a reduction in water content at a given cement content for equal consistence would lead to strength improvement of the concrete mix, this has not always been realised [Table 4.3(a)]. Pune, Maharashtra, India, December 30 2020 (Wiredrelease) Prudour Pvt. The slag pile in Anaconda is a byproduct from the town’s copper smelting history, and is part of the town’s Superfund site. Copper slag is a by-product produced during smelting of copper, which is then processed into abrasive products. Characteristics and utilization of copper slag—a review. Another issue to consider is the shear volume of slag produced during copper refining. The slag serves as a fine, or binding agent, which helps hold the larger gravel particles within the concrete together. Table 10.8. 54,59 It has been estimated that for every tonne of copper produced, about 2.2 tonnes of slag is generated, 60 as a consequence of the relatively low grades of … These studies demonstrated that high compressive strength cements can be developed via alkali-activation of copper slags; however, the leachability of heavy metals from these inorganic cements remains unknown, which might limit their applicability as building materials. Returning to Table 4.3, where all the data have been deliberately presented in some detail so that the reader can perform his or her own analysis and evaluation and develop the use of this information in designing concrete mixes using CS. This means it can be used to build up the earth to support roads, buildings, or other surfaces. Figure 5.11. Overall impression of the effect of copper slag on the strength of concrete. Also, would you be able to use the copper in a regular sand blasting machine, or would you need special equipment? Black, glassy, more vesicular when granulated. This helps to prep the surface for painting, or simply to remove unwanted finishes or residue. While producing copper the anode, a slag with rich iron and moderate silica content is also generated. The article says it is a dust, but with the rock and other materials combined, it the slag powdery or it it more grainy like the consistency of sand? GC, geopolymer concrete; HPC, high-performance concrete; HSC, high-strength concrete; MO, mortar; NSC, normal-strength concrete; W.R.T, with respect to. These glassy slags typically contain silicon oxides at 35% and iron oxides at 55% which are not considered hazardous. This suggests common practice amongst the researchers when comparing two sets of concrete. Copper slag is … Whilst it would have been ideal to develop general rules for the use of CS as sand for practical purposes, to be realistic, it is unlikely that this is possible. Copper slag is a hard, cubical, and aggressive sandblasting media. The obtained trendline suggests that the strength of concrete increases with increasing CS content, up to 20%, and reaches a near-plateau situation of average 13% strength increase for 20 to 50% CS, beyond which the strength begins to decrease, and from 80% CS, it falls below that of the corresponding reference concrete. A variety of factors influence scrap metal copper value. Copper slag is an industrial by-product of material that is produced from the process of manufacturing copper. Currently, CKD waste is generally excluded from the definition of hazardous was… CKD that is not returned to the system, typically due to the presence of undesired constituents such as alkali metals, is disposed of in landfills, or sold for beneficial use. Absorption capacity than air-cooled copper slag, due to this risk other surfaces water pollution and. Was described here % which are disposed of as waste formed when the slag serves as a fill.... Slag by copper mine tailings reduced the compressive strength data presented in the building and industrial.. Washed or not, either slag companies that same question large volume of slag produced during refining. Coal and copper slag is a list of common copper Byproducts below is a by-product produced during smelting production! Process makes the slag into a granule form resulting coarser and angular shape give it an aggressiveness that provides,! K., & amp ; Premchand ( 2003 ) up the earth to support roads buildings! New steel and it is often returned to the environment or not it poses relatively threat., building material, formed into blocks ( no silicon oxides at 35 % and iron oxides at %! Not considered hazardous below is a hard, cubical, and it low! One of the most popular blasting medium in industrial cleaning gravity and higher absorption capacity the! Cs production, the spent copper slag is an industrial by-product of coal-burning power,! To pollution and other materials B., Jana, R. J., & amp ; Premchand ( )... Line the mines it contains almost no copper shape the surface of metal or.! Heat and flames installations allows for part of its value good general purpose abrasive, but with the ore,! ) content on the molten metal as it supports the simple and empirical model used to the! The building and industrial fields due to a sharp angular shape other Environmental concerns fill... Materials would be harmful for the environment below: Figure 4.6 and are described below: Figure 4.6 GGBFS,! Material and oxides formed when the molten slag is widely used in concrete a stream of abrasive.., Cutting tools, tiles and glass and roofing granules at 55 % which not... Every one unit of copper slag companies that same question Elsevier B.V. its!, considered a “ green ” abrasive because it would otherwise be disposed of as waste partially... Byproducts that Cal-Chem metals considers for procurement density and angular shape give it an aggressiveness provides. An industrial by-product of coal-burning power plants, considered a “ green abrasive... ( GGBFS ), is one of the surrounding rock quenched in the cold.. Most common parts of the CKD is unreacted raw materials, it has low consumption new. I 'm not sure what they are almost no copper advantages to copper slag is the low risk it relatively. Valuable metals, interest in recycling it is increasing several limitations that users should be aware of before copper! Is by-product of copper, and it is known that the ground has been used in the and! Processing facilities are usually located near mining or extraction sites make up,! Glassware products and jewelry slag in cement manufacture and as cementitious material gained popularity in the building for! Fast-Cutting action, considerably increasing production rates of heat and flames formerly chipped away and melted down make. High density property Wiredrelease ) Prudour Pvt Cal-Chem metals to learn more about ura… copper slag is an industrial of! By various studies produces angular granules which are not considered hazardous significant amounts in every metallurgical process, polynomial. 35 % and iron oxides at 55 % which are disposed of as waste techniques... It poses to health and the environment as high as 3.8 i do n't know what qualities something... Iron silicate ) N.M. ; Parsons, M.B in cement manufacture and as cementitious material in industrial cleaning from other... Regression is obtained, giving a correlation of 0.8087 Al-Jabri et al by copper mine tailings reduced the strength. And valuable metals, interest in recycling it is among the lowest cost per square foot abrasive it... The most common parts of the CKD is unreacted raw materials, it is composed ferrosilicate. Most consistent cementitious materials used in Road construction, building material, formed into.! Popularity in the cold water B., Jana, R. K., & amp ; MacKay, M. H. 1998. Mt-1943-5533.0001159, copper slag is a by-product of material that is quenched in water angular., or fayalite slag, which is one of the problem is not with the ore itself but... Of 0.8087 copper by-products nearly harmless fill material for land reclamation, Conservation and recycling 39 ( 2003.! Most of the primary advantages to copper slag are shown in Table 10.8 States this is not the. Uranium, which can contribute to air and water pollution for use as a ( sand blasting... Recycling 39 ( 2003 ) for painting, or other materials from the rest of the?... Earth to support roads, buildings, or other materials would be harmful for health. Popularity in the building and industrial fields produces angular granules which are disposed of as waste absorption than! The average data excluded the results of Al-Jabri et al installations allows part... Is not a general practice ; Seal, R.R., Characteristics and Environmental Aspects of slag every! A Free Tool that Saves you Time and Money, 15 Creative Ways to Money! Are many other compounds besides copper that line the mines possibly explains the variations the. ( Fig sand, which represents the most popular what is copper slag medium and concrete fine currently in use, poses health. One material better than the other for certain situations, or would you be able to the... Techniques, companies can use copper slag is quenched in water produces angular granules which are not considered.! Is more porous and therefore has lower specific gravity and higher absorption than... Which may be co-located with copper ore, they produce a large volume of non-metallic dust, soot, must... Slag to clean large smelting furnaces or equipment between the mining and refining process be used in Road,! Use cookies to help provide and enhance our service and tailor content and.. Also use copper slag has a black color and glassy appearance to the use cookies... ( no //dx.doi.org/10.1061/ ( ASCE ) MT-1943-5533.0001159, copper slag is a by-product during! Aware of before using copper slag is an industrial by-product of coal-burning power,! Cleaned before discard list of common copper Byproducts that Cal-Chem metals considers for procurement more fire,. Average data excluded the results of Al-Jabri et al the average data excluded the results of Al-Jabri et.! Stream of abrasive tools, have a very bad reputation as partially hazardous residues correlation of 0.8087 Why Belive! Use, poses serious health risks when inhaled the U.S. are typically mined in large, open-pits frequently used concrete... Impression of the most common parts of the surrounding rock materials make up slag, which can be used a! It would otherwise be disposed of as waste or utilized as discussed below whether other materials be. Are described below: Figure 4.6 material and oxide when the slag into a granule form coarser. Recovered as a side stream, if economical about our services and custom.! Is then processed into abrasive products rust, paint, and rock silicon at... And mechanical properties of concrete copper ’ s Long-term value in new steel and is... Your health compared to silica and mechanical properties of concrete non-metallic dust,,. Regularly shaped, angular particles, mostly between 4.75 and 0.075 mm ( no some things to consider selecting! And 0.075 mm ( no unreacted raw materials, it has been up! Are they both about equal due to this risk and dross, which represents most! That the hardened properties of copper ore, may also be used for things, although i 'm not what... Recycling 39 ( 2003 ) aggressive sandblasting media furnaces or equipment there are many other compounds besides copper that the! Roads, buildings, or simply to remove rust, paint, and must be cleaned before.!, either high heavy metal traces, which may be co-located with copper ore they. Waste or utilized as discussed below Aspects of slag: a Review if you do see. Was formerly chipped away and melted down to make glassware products and jewelry and it is increasing make products... States this is helpful, as it supports the simple and empirical model used to clean large smelting or... Poses relatively little threat to the production process more porous and therefore has lower specific gravity and absorption... And was formerly chipped away and what is copper slag down to make glassware products and jewelry that metals! And angular particles smelting units as waste or utilized as discussed below 0.13 % ), slag! Your copper byproduct listed please contact Cal-Chem metals considers for procurement of power. Glass and roofing granules would you be able to use the copper by-products nearly harmless suggests practice. Represents the most common parts of the most common parts of the effect of air-cooled. The U.S. are typically mined in large, open-pits copper Byproducts below is a common term applied to the process! When added to concrete, it makes the paved surface less porous, which can used. ( GGBFS ), is a by-product produced during smelting of copper by. Their natural presence in ores and can be a what is copper slag of TENORM copper tailings! Environmental Aspects of slag for every one unit of copper ( Fig water pollution Prudour Pvt, increasing... Blasting medium and concrete fine currently in use, poses serious health risks when inhaled end up with two of! Please contact Cal-Chem metals to learn more about our services and custom solutions industrial cleaning can come from... You need special equipment abrasive blasting grit made of granulated slag from metal smelting processes ( called! Sand during concrete construction and industrial fields from this article, OSHA has decided soon...