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Jan 22, 2020· A copper-nickel slag-based alkali-activated cementing material (CNSCM) for backfilling was prepared using copper-nickel slag as a raw material and sodium silicate (SS) as an activating agent. The effects of SS content (6%, 8%, and 10%) and curing humidity on the compressive strength of CNSCM were investigated using an electronic universal testing machine.


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Jul 01, 2017· Zain et al. (2004) applied blasted copper slag as an additive, replacing Portland cement in mortar, in order to study a safe route for disposal of this sub-product. The replacement of cement by this residue increased the setting time and slightly reduced compressive strength in mortars, finding that the optimal amount of replacement was between ...


For a split tensile strength, it can be rolled up until 80% of the copper slag concrete in a 50% fly ash mix provides a satisfactory value.(7) M. V. Patil et al. (2015) stated that M30 grade of concrete be used and the tests be conducted for a variety ofvolume of copper slag replacement with fine aggregateof0% to100 % in concrete.


Sustainability of Concrete Using Copper Slag as Replacement for River Sand. Concrete consumption is so extensive that it stands second to water. Spiraling urbanization has led to excessive consumption of concrete, which has increased the demand for sand, cement and coarse aggregates. The sand consumption across the world per annum is estimated ...


Apr 15, 2018· The mechanism of composite additive in promoting reduction of copper slag was revealed. In this paper, the kinetic study of direct reduction of copper slag (CS) was studied by isothermal method, and the phase transformation and growth behaviors of metallic iron particles during reduction process were clarified by X-ray diffraction, Scanning Electron …


Apr 01, 2007· Copper slag. Copper slag grains have a fineness modulus of 3.4. In order to use copper slag as a mineral admixture it was necessary to carry out an experimental study associating grinding time, average diameter and pozzolanic activity assessed in mortars [].Based on this study, it was verified that 60 min was the optimal grinding time in horizontal ball mills to …


copper tailings as an additive in concrete by considering consistency, mechanical strength, porosity and leaching behaviour of concrete mixtures incorporating it at 0%, 5% and 10% addition levels. Experimental Procedure Materials The binders used in preparing paste and concrete mixtures in this study were Portland slag cement


Copper slag can be added in two stages into cement as follows: 1. At the time of manufacturing of cement (additive) 2. At the time of mixing concrete in-situ (admixture) In this paper study has been ndperformed on the 2 step i.e., we have added copper slag while preparing the mix design. II. MATERIALS USED A. Cement


of combining cement and copper slag with soil. In addition, a feed-forward back -propagation neural network is proposed to predict elastic modulus, failure strain (ɛ f) and UCS of the soils modified with cement and copper slag. 2. Materials and Methods 2.1 Soil and Cement The samples were provided by 20% of clay and


May 03, 2014· Physical properties. Copper slag grains have a color of black glassy type and a fineness modulus of 3.5. The hardness is about 7 Moh's scale. Other typical physical properties are given in Table 2.In order to use copper slag as a mineral admixture, it was necessary to carry out an experimental study associating grinding time, average diameter, and pozzolanic activity …


Copper Slag As Additive In Cement Making. Copper slag as additive in cement making machine burundi copper slag applicationopper slag application dxn excellent mining crushing machinery products or production line design the company is committed to building the chinese brand mine crushing and processing machinery mainly crusher mill sand making our products …


2. Slump cone value for the copper slag concrete increases with increasing in the percentage of copper slag so the concrete was not workable. 3. Compaction factor value of copper slag concrete decreases with increase in the percentage of copper slag. 4. The compressive strength of concrete is maximum at 20% replacement of copper slag


BLACK BEAUTY IRON® abrasives (copper slag) are a high performance, chemically inert product that cuts quickly and achieves increased production rates due to its physical properties. The product is used on a variety of substrates including structural steel and concrete.


Copper Slag is obtained by the smelting of copper extraction via the manner of smelting. It is used as abrasive media because it offers quicker blast cleansing speed and provides low dust degrees compared to other abrasive media. Copper Slag Blasting is one among those packages for reusing copper slag is in cement and urban manufacturing.


copper slag-treated soil showed good increase in the CBR value with an increase in the copper slag content for all mix proportions. The CBR values of cement mixed soil with copper slag are 3 to 7 fold higher than that of the soil with copper slag waste without the presence of the Portland cement. Soaked CBR with 2% addition of cement has a


Copper Slag Grit. Copper Slag Grit has Two grades are available to suit the most common blasting operations. The hardness and high density of us give it a high resistance to fracture with very low dust formation during blasting, as well as faster blast-cleaning speed when compared to local copper slag abrasive.


Copper slag is a byproduct obtained during smelting and refining of copper ore rich in sulphides and oxides of iron and copper, in the course of removing iron as iron silicate. During the smelting process at 1250°C, copper liquid settles down due to higher density while copper slag remain on the surface in the segregated state.


May 05, 2015· The addition of copper oxide in cement raw mix is known to improve its burnability, with increase in formation of the alite phase. Copper slag, a by-product of the metallurgical industry, containing copper oxide can therefore be a useful additive in the manufacture of cement, particularly for hard burning raw mixes.


Other means of identification : Fayalita (Complex silicates and oxides of Fe, Si, Ca, Al); Copper slag 1.2. Relevant identified uses of the substance or mixture and uses advised against Use of the substance/mixture : Blasting media, Roofing granules, Waterjet cutting, Concrete additive, Anti-skid additive 1.3.


concrete containing copper slag and micro silica as partial replacement of sand and Cement respectively. From the test results, it was concluded ... pozzolana, blast furnace slag, sulphur, a regulated set additive, polymers, admixtures, fibers etc. Workability is an amount of useful


Dec 01, 2012· A standard w/b ratio of 0.485 according to the ASTM C 109 (guidelines was used for preparing mixtures incorporating 0%, 5% and 10% copper tailings by mass of cement as a mortar additive.These mixtures were identified as C0 for control, C5 for 5%, C5–PW for 5% addition of pre-wetted copper tailings and C10 for 10% addition level.


Pilot studies concerning industrial scale application of post copper slag as a nano-additive for the modification of the corrosion resistance of cement composites have been described. The influence of a tribochemical treatment on some physicochemical properties as well as the corrosion resistance of the obtained composites have been evaluated based on DTG, RTG, …


Copper slag possesses mechanical and chemical characteristics that qualify the material to be used in concrete as a partial replacement for Portland cement or as a substitute for aggregates.


Pilot studies concerning industrial scale application of post copper slag as a nano-additive for the modification of the corrosion resistance of cement composites have been described.


Jan 17, 2020· produce reformed slag like a blast furnace slag for blast furnace slag cement from copper slag. As a results, it was confirmed that reduction smelting by carbon at temperatures above 1400°С is possible to recover pig iron containing copper from copper smelting slag, and CaO additives in the reduction


Copper slag is a by-product produced during smelting of copper, which is then processed into abrasive products. Typically it is composed of Ferro silicate material and oxides formed when the molten slag is quenched in cold water. This cooling process fractures the slag into coarse, angular particles making it an ideal choice in many applications.


Copper slag is a hard, cubical, and aggressive sandblasting media. Contrary to its name it contains almost no copper! Best abrasive to use when ranked on cutting speed and cost per sq. ft. CARB approved; Recyclable into Portland Cement; Blastox is available - please specify percentage required when requesting a quote (15% or 20%). Angular and ...


N2 - This paper investigates the effectiveness of using cement by-pass dust, copper slag, granulated blast furnace slag, and slag-cement in reducing the swelling potential and plasticity of expansive soils. The soil used in this study was brought from Al-Khod (a town located in Northern Oman) where structural damage was observed.


Copper slag is widely used in multiple types of applications, as professional blasting material, additive for different types of composite cements, roofing, concrete and mortar, additive in paving tiles industry, granular replacement for different mixtures of hot asphalt, material used for granular roof tiles production and granular base for ...


Since copper smelting slag contains high content of iron, and copper and zinc, common applications of copper smelting slag can be used in value-added products such as abrasive tools, roofing granules, road-base construction, railroad ballast, fine aggregate in concrete, etc. Some studies have attempted to recover metal values from copper slag.


compressive strength in concrete mixtures containing copper slag. They also noticed that these mixtures displayed no significant sulfate induced deterioration, and the rate of carbonation was minimal compared to those of the control samples. Moura 11et employed copper slag al. as an additive in concrete, and they observed increased