Very few researchers to date have concentrated on fully replacing copper slag in concrete and cement mortar applications. Moreover, none of the previous studies considered …Web
ادامه مطلب
The workability of concrete was assessed based on the measured slump of fresh concrete. It is clear from Table 2 that the workability of concrete increases …Web
ادامه مطلب
The aim of the research is a comprehensive evaluation of concrete using the EIPI method. In the evaluation the compressive strength of concrete and its durability properties represented by sorptivity and air …Web
ادامه مطلب
This paper extends the comparative study of copper slag concrete with polypropylene fiber (PPF) subjected to destructive and non-destructive testing.Web
ادامه مطلب
Both compressive strength and flexural strength are increased due to the high toughness of copper slag [9]. Therefore, a study about the durability performance of concrete using copper slag as a replacement of fine aggregate has been developed in these recent years. Copper slag is denser than ordinary natural aggregates with a …Web
ادامه مطلب
Adding fiber contributes to the enhancement of compressive strength by 6%. Copper slag replacement of 20% delivers a 35% improvement in compressive strength at 28 days. However, Hsie et al. reported only a 14.6 to 17.35 % strength gain over control concrete. Copper slag content increases the volume of free water in the concrete.Web
ادامه مطلب
Global copper slag (CS) emissions reached 57.2 million tons in 2021. Despite the increasing reuse of CS, the treatment of CS is still dominated by landfill so far, which not only occupies land resources but also causes damage to the environment. The application of CS to cement-based materials (CBMs) is one of the main approaches to its …Web
ادامه مطلب
The preparation of copper slag to more fully replace natural aggregate concrete re-quires further performance studies, and existing design specifications for raw aggregate concrete do not apply to copper slag aggregate concrete due to the quality differences of copper slag. Previous research on the durability of copper slag …Web
ادامه مطلب
Concrete prepared with copper slag as a natural sand replacement had a higher fresh slump and compressive strength than river sand concrete [13, 14]. As a result, the primary aim of this research ...Web
ادامه مطلب
This paper mainly reviews the relevant literature published in the past decade; critically discusses the performance of CS and the influence of partial replacement of CS …Web
ادامه مطلب
The paper presents a laboratory study on CEM-II concrete mixes, containing water-cooled copper slag waste material for a partial or full replacement of fine concrete aggregate. A series of tests ...Web
ادامه مطلب
Concrete was made with a mix design of 1:1.5:3 (1 part cement; 1.5 parts sand and 3 parts coarse aggregate) according to British Standards guidelines for RC40 [].Two different sets of mixes were made with water/cement (w/c) ratios of 0.55 and 0.45 respectively, with the mix composition shown in Table 4.Mixes without copper slag were …Web
ادامه مطلب
The current investigation is an attempt to perform the strength and durability studies on slag cement concrete prepared by using copper slag (CS) as a fractional/full replacement for natural fine ...Web
ادامه مطلب
To investigate the acidic behavior of self-compacting concrete (SCC) incorporating Copper Slag (CS), a series of seven mixtures with different percentages of CS as cement replacement was produced. The specimens were replaced by 0%, 5%, 10%, 15%, 20%, 25% and 30% CS of total binder. Two types of acids as sulfuric acid and …Web
ادامه مطلب
In recent decades, CO 2 emissions from concrete production account for 5% of the global total carbon emissions. At the same time, the amount of industrial waste is also increasing year by year. As a non-toxic and harmless industrial waste, copper slag (CS) has been a great concern for researchers as a type of building material in recent years.Web
ادامه مطلب
Further for reinforced concrete with 40% replacement of copper slag, the percent of decrease in compressive strength is on lower side for nominal concrete as compared to concrete with copper slag.Web
ادامه مطلب
UPV varies from 4383 to 4565 m/s. 40% copper slag partial replacement enhanced the properties of self-compacting concrete, and up to 60% of fine aggregate …Web
ادامه مطلب
This paper also studies the corrosion behaviour of steel reinforcement embedded in copper slag concrete. Corrosion of steel reinforcement is one of the …Web
ادامه مطلب
This paper aims at the experimental study of durability properties and long-term mechanical properties of self-compacting concrete with fly ash as secondary cementitious material and copper slag as inert material. Cement replaced with fly ash at 20% level and fine aggregate replaced with copper slag at 10%, 20%, 30%, 40%, 50%, …Web
ادامه مطلب
Abstract. In this work, we aim to prepare M30 grade concrete utilizing copper slag as a replacement material for fine aggregates in proportions of 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and in the concrete. The experiment was conducted at constant w/b and w/c ratios with varying amounts of superplasticizer, and …Web
ادامه مطلب
The flexural strength was higher than the control specimen for all percentages (ranging from 10% to replacement) of copper slag fine aggregate. Both compressive strength and flexural strength are increased due to the high toughness of copper slag [9]. Therefore, a study about the durability performance of concrete using …Web
ادامه مطلب
To improve SCC and to make a green concrete waste copper slag (WCS) is used as a partial replacement of fine aggregate. ... 60%, 80%, and copper plates at w/c 0.45, The results showed that the replacement of the copper tailings improved the new features. The highest direct stress is 20% copper tailings. 3. Details of experimental3.1 ...Web
ادامه مطلب
Jabri et al. examined the impact of copper slag on high-performance concrete as the replacement of sand ranging from 0 to . There is a slight rise in the HPC density, nearly 5% when mixed with copper slag compared to the control mix. The use of copper slag up to 50% gives maximum compressive strength.Web
ادامه مطلب
This paper reports the result of experimental on the resistance to chloride diffusion and steel corrosion of concrete mixtures. A series of tests were performed to …Web
ادامه مطلب
On the other hand, with good physical properties, high stability, and stable mechanical properties, copper slag can be used as a high-quality raw material for new blended cements, concrete, pavements, glass, tiles, and high hardness tools, despite being production waste, copper slag is also used for the development of abrasives, …Web
ادامه مطلب
1.4. Copper slag Copper slag is an industrial by-product material formed by the copper process. About 2.2 tons of copper slag are created for every tone of copper output. The world copper sector has calculated that about 24.6 million tons of slag are produced. Although copper slag is commonly utilized in the sandblastingWeb
ادامه مطلب
1. Introduction. Copper slag (CS) is a by-product of the copper smelting process and is one of the nonferrous metal residues. CS is mainly composed of Fe 2 O 3, SiO 2, and a small number of metallic elements [1,2,3].CS holds great promise for resource utilization of building materials, particularly in cement-based materials (CBMs), which can …Web
ادامه مطلب
Around 2.2 tons of copper slag is being generated for each one ton of copper production and it has been reported that, world copper production is about 24.6 million tons approximately [5]. The replacement of fine aggregate using copper slag in cement-mortar and concrete production is done over a decade now.Web
ادامه مطلب
Therefore, utilization of copper slag for recovering iron can be used to feed the steel plant, stimulating its resurrection. This can also help in the waste management of slag, thus reducing environmental pollution. Most slags contain 40 wt.% iron, and extraction of this iron from CS is ideal [ 70 ]. 2.2.Web
ادامه مطلب
When compared to standard concrete, the GPC lollipop sample significantly reduced the corrosion rate even in the presence of a 5% chloride environment. This is because phosphate's natural corrosion-inhibiting property has decreased the deleterious impact of the copper slag and improved the performance of the structure.Web
ادامه مطلب
the replacement ratio of copper slag to fine sand about 35%, but the flexural strength decreases with increasing copper slag replacement ratio, while for steel fiber reinforced high performance concrete, when the copper slag replacement ratio is about 40%, the concrete has a relatively high compressive strength, flexural strength and …Web
ادامه مطلب
Ultra-High Performance Concrete (UHPC) was hindered by the use of non-renewable quartz sand, so there was a need to find a new sustainable material to replace quartz sand. This study investigates the possibility of using copper slag as an aggregate instead of quartz sand to make sustainable UHPC. To ensure the workability and good …Web
ادامه مطلب
The results obtained for concrete indicated that there is a slight increase in density of nearly 5% as copper slag content increases, whereas the workability increased significantly as copper slag ...Web
ادامه مطلب
[11] Maharishi A., Singh S. P. and Kumar L. 2020 Materials Today : Proceedings Strength and durability studies on slag cement concrete made with copper slag as fine aggregates Mater. Today Proc. Crossref; Google Scholar [12] Manohar C. 2019 Concrete Strength Evaluation by using Copper Slag instead of Aggregates for M30 …Web
ادامه مطلب
Microbially induced concrete corrosion (MICC) is recognized as one of the main degradation mechanisms of sewer infrastructure worldwide. To help control this problem, a beneficial reuse path for basic oxygen furnace slag (BOFS) has emerged in which the incorporation of copper-laden BOFS particles into cementitious materials …Web
ادامه مطلب
The present work investigates the mechanical and chemical characteristics and durability of high-strength geopolymer concrete (HSGPC) developed using high-volume copper slag and micro silica. …Web
ادامه مطلب
Copper slag (CPS) is a large amount of waste material produced during the manufacture of copper. The disposal of this waste material becomes a problem for environmental concerns. Therefore, it is necessary to explore feasible alternate disposal options. ... A lot of researchers focus on utilizing CPS in concrete, either as a cement …Web
ادامه مطلب
In the previous research, the use of copper slag fine aggregate (CUS) as sand substitution improves the strength and durability of high strength concrete characteristics at the same workability while superplasticizer is a very important ingredient in high strength concrete made with copper slag. The cement replacement materials …Web
ادامه مطلب