influence of copper slag as fine aggregate on the,the quantities of cement, coarse aggregates (20 mm and 10 mm), fine aggregates, copper slag and water for each batch i.e. for different percentage of copper slag were weighed separately. the cement, copper slag and fine aggregates were mixed in dry form. the coarse aggregates were mixed to get uniform distribution throughout the batch..strength properties of concrete by the utilisation of,2. contractors may also use copper slag in place of sand during concrete construction. 3. copper slag can also be used as a building material, formed into blocks. 4. copper slag is widely used in the sand blasting industry and it has been used in the manufacture.
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(cavette, 2007) refining the copper blister is 99% copper but it still have a higher level of sulfure, oxygen some other impurities and by the reason it has to be further refined in order to purifies the cupper, this done by fist firing refined before it is sent to the final electro fining process • the blister copper is heated in in the refining furnace that is similar to the converter ,air is blown into the molten blister to oxides
copper slag is a by-product created during the copper smelting and refining process. as refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields.
during blasting, copper slag breaks into smaller particles on impact with metal surfaces. after several rounds of reuse, the copper slag gets contaminated with rusts and paints and becomes a waste material but without any change in its chemical composition. the contaminated copper slag has to be properly treated or washed to meet certain recycling
table 4.1 compressive strength gained of sieved copper slag concrete with age. graph 4.1 compressive strength of sieved copper slag concrete with age. 4 .2 effect of copper slag on flexural strength:- standard beam of size 150 x 150 x 500 mm were supported symmetrically over a span of 350 mm and subjected two points loading.
one of the copper processing wastes, copper slag, have shown that there is a significant potential for its utilization as a cementitious material. increases in compressive strengths were recorded by tixier et al.12 in mortar samples containing copper slag. in concrete mixtures, al-jabri et al.13 noticed that a 5% partial
filtered copper slag serves as an ideal partial sand replacement in the production of ready-mix concrete. the treated slag is supplied to various ready-mix companies in singapore. treated slag is also used as a sand replacement in the manufacturing of concrete interlocking bricks which are often used for walking paths, driveways in industrial and residential areas as well as car parks.
partial replacement of sand by copper slag in concrete is allowed up to 10% by mass. copper slag has similar properties to sand, and is a very effective substitute during monsoon (rainy) season. further, copper slag is also used in the production of cement, mortar and concrete as a raw material for clinker, cement replacement, coarse and fine aggregates.
natural sand by copper slag, the flexural strength of concrete is increased by 14%.and all percentage replacement of fine aggregate by copper slag the flexural strength of concrete is more than normal mix. 4. compressive strength and flexural strength is increased due to high toughness of copper slag.
several researchers have investigated the possible use of copper slag as fine and coarse aggregates in concrete and its effects on the different mechanical and long-term properties of mortar and concrete. with some benefits of using copper slag as fine and coarse aggregates, some negative effects such as delaying of the setting time, especially when only copper slag has been used as fine
the results show that the compressive strength of cs(copper slag) concrete is increased when compared to control concrete (35.66mpa to 48.76mpa cured at 28 days), where as the increase in strength is more or less the same different percentage of cs, as shown in figure 1 the results show that the split tensile strength of cs concrete is increased when compared to control concrete (4.75 mpa
as the percentage of copper slag increases the density of concrete was increased. density was increased by7% due to replacement of fine aggregate at 100%.maximum modulus of
further increments of copper slag resulted in reduction of strength due to increase of free water content in mix. concrete mixes with copper slag of 80% and 100% replacement gave lowest compressive strength approximately 80 mpa, nearly 16% lower than controlled mix. these results also demonstrated that with
copper slag, a by-product of copper production, contains large amounts of iron oxide and silicate. it is chemically stable and its physical properties are simil search
addition on the properties of high strength concrete made with copper slag. they observed that the water demand reduced by about 22% for 100% copper slag replacement. the strength and durability of high strength concrete improved with the increase in the content of copper slag of upto 50%. however, further additions of copper slag
copper slag significantly reduces the hydration of cement. it indicates that copper slag the can be utilized as supplementary cement replacement material in concrete. the optimum content of copper slag as replacement of cement is recommended as 10%. keywords: alite, compressive strength, concrete, copper slag, hydration, portlandite,
cost of concrete production is reduced when copper slag is used as a fine aggregate in concrete. high toughness of copper slag contributes to increased compressive strength. due to low water absorption and due to glassy surface of copper slag the workability of concrete is increased
slag as fine aggregate in concrete. copper slag has physical properties similar to the fine aggregate, so it can be used as a replacement of fine aggregate in concrete. copper slag has lower absorption and higher strength properties than fine aggregate. replacement of copper slag increases the self-weight of concrete specimens to the maximum of 15% to 20% .
test results revealed that the increased replacement level of copper slag increased the gpc properties. whereas, the increased replacement level of vermiculite decreased the gpc properties. keywords: geopolymer concrete; fly ash, ggbs; compressive strength; ultrasonic pulse velocity; copper slag; vermiculite.
1) to determine the behavior of concrete using copper slag as fine aggregate. 2) to meet the scarcity of natural fine aggregate in future, the copper slag can be alternatively used. 3) vast quantities of copper slag are produced from manufacturing of copper.in our project we are using the copper slag by replacing natural fine aggregate at
copper slag (scs) coarse aggregate at different ages (w/b: 0.3 and sf: 10%).. 83 fig.4.6: comparison different failure surfaces of concrete specimens containing: a) limestone; b) copper slag............................................................................................ 84
aggregate in concrete. copper slag has physical properties similar to the fine aggregate, so it can be used as a replacement of fine aggregate in concrete. copper slag has lower absorption and higher strength properties than fine aggregate. replacement of copper slag increases the
using copper slag as a concrete aggregate are explored in this study in order to contribute towards metallurgical waste recycling. emphasis is placed on the evaluation of the concretes strengthening prepared with copper slag contents and produced under
studies by alnuaimi (8) indicated that replacement of fine aggregate (sand) by copper slag does not have an adverse effect on the load carrying capacity of the concrete columns. similar trends of compressive strength development of concrete containing copper slag fine aggregate to those of mortars.
published date 15 october 2015 , vol.96 : 172 – 180 , doi:10.1016/j.conbuildmat.2015.08.021 title effects of copper slag and recycle...