The maximum compressive strength of concrete attained at 40% replacement of fine aggregate at 7 and 28 days. disadvantages of copper slag in concrete. April 7, 2018 Posted by: RSIS; Category: Civil Engineering; No Comments . This also wastes time, because the welder has to clean away the slag to make a presentable product or welding job. Although copper slag had trace amounts of heavy metals like As, Cd, Cu, Cr, Pb and Zn in its composition, they were found to be stabilized due to their encapsulation by the bitumen present in asphalt mix [72]. slag, refining slag, or flue dusts), and copper-alloy scrap. 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 Recovery of Cobalt and Copper from Nchanga Mines Slag The Ideal Direct-to-Copper Process 179 10.3. Control 186 10.7.1. They are considered as potential natural hazard, which can cause extensive damage to structures if not adequately treated. Main laboratory tests include Un-confined compressive strength test (UCS), California bearing ratio test (CBR). disadvantages of clay can be overcome by stabilizing with suitable material. The blast furnace ironmaking damages the environment very much. Preliminary Study on Geopolymer Concrete using Copper Slag and Vermiculite . Copper slag, or fayalite slag, is a by-product obtained during the matte smelting, converting and refining of copper (Fig. Direct-to-CopperSmelting 7 1.2.5. What makes Pyromet’s launder design innovative and safe is that it does not have any cooling water channels underneath the launder runner, whilst achieving effective cooling of the runner. SolventExtraction 8 1.3.2. This inert slag can also be used for land filling, for making of road and in construction works like embankment for rivers, etc., Converter slag (0.36 kg/kg of copper) produced from SWIL and slag (1.6 kg/kg of copper) from Birla copper (Sharma, 1998a, Sharma, 1998b) is granulated and sold out to the construction companies for road making, as abrasives for shot blasting media. Blast Furnace Disadvantages: 1. The disadvantage of the reduced strength at early age can be managed by adding an optimal amount of slag. Slag From Copper Mines - chtipizz.fr. Copper slag is a by-product created during the copper smelting and refining process. The production of Copper Slag is 120-130 lakh ton per annum. Summary. Related product: Blast Furnace slag Metal droplets fall to the weld pool and join the work pieces. Per ton of copper produced, 2.2 tons of slags are generated. The slag/metal distribution ratio of indium between molten copper and slags in the copper saturated CaO-SiO 2 -FeO x system with Fe/SiO 2 = 1.1 to 1.2 and CaO contents between 4 wt. ADVERTISEMENT. Copper slags are considered as a waste product of pyrometallurgical copper extraction from ores. Keywords: Copper slag, UCS, CBR, Lime, Stabilization . High % Cu-in-Slag from No-Matte-Layer Strategy 186 10.8. 2312 Words 10 Pages. Projects included a five tonne ... while the major disadvantage was seen to be the risks associated with scaling up the technology from the Mount Isa demonstration plant. Disadvantages Of Copper Slag. 11.4. 11.2. In these slags, higher copper … Fire RefiningandElectrorefining ofBlister Copper 7 1.3. As the initial setting time is high, this cement is not used for emergency or repair works. copper slag as a replacement of fine aggregate on the strength properties and concluded that Maximum Compressive strength of concrete increased by 55% at 40% replacement of fine aggregate by copper slag and flexural strength increased by 14 % for 40 % replacement. INTRODUCTION . Disadvantages of Blast-Furnace Slag Cement Early Strength is low; therefore, it cannot be used in Reinforced Cement Concrete (RCC) works. Advantages and Disadvantages 179 10.2. Washed sand from Erzeni riverbed, (a river near Tirana, Albania) is used for producing of mortar prisms [6]. The rebound hammer test showed higher compressive strength at 40% fine aggregate replacement. Copper slag is one of the materials that is considered as a waste which could have a promising future in construction Industry as partial or full substitute of aggregates. 3. Electrowinning 9 1.4. 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