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01/02/2021 The two major applications of steel slag in concrete are used as a mineral admixture for cement and as an alternative to natural aggregates. The less cementitious ingredients in steel slag limits its cement utilization. Instead, steel slag is widely used as an aggregate in concrete. Many studies have investigated the performance of concrete
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Because of the unique physical and chemical characteristics of steel slag, steel slag aggregate (SSA) has been recycled into Portland cement concrete as a substitution for natural aggregates as a sustainable and low impact design solution by reducing the use of natural resources and the landfills for disposal. This paper reviews credible achievements and challenges of SSA
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In his study [14], Dong compiled an overview of the use of steel slag in Portland-cement-based concrete. Another overview of the application of steel
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Abstract Because of the unique physical and chemical characteristics of steel slag, steel slag aggregate (SSA) has been recycled into Portland cement concrete as a substitution for natural aggregates as a sustainable and low impact design solution by reducing the use of natural resources and the landfills for disposal. This paper reviews credible achievements and
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Recycling of Steel Slag Aggregate in Portland Cement Concrete: An overview Journal of Cleaner Production ( IF 9.297) Pub Date : 2020-10-01, DOI: 10.1016/j.jclepro.2020.124447 Qiao Dong, Guotong Wang, Xueqin Chen, Juan Tan, Xingyu Gu
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Article “Recycling of steel slag aggregate in portland cement concrete: An overview” Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and technology information which hitherto stood alone to support the generation of ideas. By linking the information entered, we provide opportunities to make
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Article “Recycling of steel slag aggregate in portland cement concrete: An overview” Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and technology information which hitherto stood alone to support the generation of ideas. By linking the information entered, we provide opportunities to make
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Request PDF The recycling effect of BOF slag in the portland cement properties The basic oxygen furnace (BOF) slag use as raw material for cement production carries economic, environmental and ...
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Abstract The basic oxygen furnace (BOF) slag use as raw material for cement production carries economic, environmental and technical benefits to the cement industry, reducing energy costs, material consumption and waste storage areas. This study evaluates the partial replacement of blast furnace slag by BOF slag in the production of slag portland cement. Specimens were
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Portland cement, as fine and coarse aggregates, to name a few. But steel slag has a negative impact on the environment when disposed. In that case wide variety of use of steel slag becomes relevant. Along with the diversified uses, steel slag efficiently replaces natural aggregates both coarse and fine, in a conventional concrete mixture. Most of the volume of concrete is
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Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications. According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete. The states that do use
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In Brazil, by-products from the steel industry consist of 42 % blast furnace slag, 27 % steelworks slag and 31 % other by-products such as dusts, sludges, etc., according to figures from the Brazil Steel Institute for 2017. 92 % of the approximately 8.8 Mta of blast furnace slag was recycled in 2017, of which 99 % went to cement production. Of the approximately 5.6 Mta of steelworks
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Figure 1: Portland cement. Figure 2. Granulated slag. Figure 3.Coarse aggregate. 3.3 Concrete Casting Concrete is a combination of cement, sand, aggregate, water, and possibly an admixture. Proportions of each ingredient are adjusted to create a well-balanced mix. Concrete sets in as few as 10 hours and lasts to harden and
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01/10/2009 Workability and mechanical properties of steel slag green concrete with different types of steel slag and different dosages of admixtures were investigated. The effectiveness of steel slag powder on suppressing alkali aggregate reaction (AAR) expansion was assessed using the method of ASTM C441 and accelerated test method. Experimental results show that
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They also offer significant environmental benefits such as the reuse or recycling of material and the avoidance of the need to quarry natural aggregates. Agriculture. In agriculture, slag aggregates (Ag-Slag) have been used as an agricultural liming material since the 1920's in all types of crop production and landscaping. The materials are used to maximise yields of
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practices has identified the reduction, recycling, and reuse of wastes as important for management of sustainable resources. Steel slag, a by-product obtained from steel formation during the separation of the molten steel from impurities in furnaces. A molten liquid melt obtained from slag is a complex silicates and oxides that solidify on cooling. A partial replacement of
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Concrete recycling gains importance because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications. According to a 2004 FHWA study, 38 states recycle concrete as an aggregate base; 11 recycle it into new portland cement concrete. The states that do use
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produced artificial steel slag by mixing Portland cement, fly ash and steel slag powder in a carbon dioxide treatment process. Then, they investigated the influence of carbonated artificial steel slag aggregate on concrete performance. The concrete with a compressive strength of 45.5 MPa and constant volume was developed and the formation of calcium carbonate as
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Figure 1: Portland cement. Figure 2. Granulated slag. Figure 3.Coarse aggregate. 3.3 Concrete Casting Concrete is a combination of cement, sand, aggregate, water, and possibly an admixture. Proportions of each ingredient are adjusted to create a well-balanced mix. Concrete sets in as few as 10 hours and lasts to harden and
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Use of Slag. Slag plays an important role in industrial production, especially in some large factories, slag is extracted and processed into slag cement, slag fine powder, slag powder, slag Portland cement and slag cotton. Blast furnace slag can also be used as raw materials for cast stone, glass-ceramic, fertilizer, enamel, ceramics and so on.
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01/10/2009 Workability and mechanical properties of steel slag green concrete with different types of steel slag and different dosages of admixtures were investigated. The effectiveness of steel slag powder on suppressing alkali aggregate reaction (AAR) expansion was assessed using the method of ASTM C441 and accelerated test method. Experimental results show that
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Steel slag is classified into two types according to production process: steelmaking slag and blast-furnace slag. 24.97 million tons of blast-furnace slag and 14.4 million tons of steelmaking slag were generated in Japan in fiscal 20071). Efficient recycling of blast-furnace slag has already been achieved: today, 100% of this slag is used as charge stock of Portland blast
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steel slag which retarding the recycling of steel slag in construction industry, the relevant problems were analyzed in detail such as the expansion mechanism of steel slag in concrete, the influential factors on its expansion, especially the improvement measure for controlling the volume stability of concrete using only steel slag as aggregate. In this paper, the mechanical
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slag powder and blast furnace slag so the recycling of steel slag can bring enormous benefits and environ-mental benefit to whole society.[9] 6. Ground granulated blast furnace slag is commonly used in combination with Portland cement in concrete for many applications[10,11] 7. The heat of hydration is dependent on the Portland cement used and the activity of the
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steel slag in concrete. Eco-friendly and mass use of waste materials in construction is possible with the use of steel slag for partial substitution of concrete. S. P. Palanisamy et. al (2015) indicated the usage of steel slag, wastes of cheap natural materials used as fine aggregates for cement grades of M55, and recommends and accepts products for use in cement as
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recycling of aggregates with emphasis on steel slags: a status report Using steel slag aggregate in road construction: a field report Euroslag 2015 S. Lackner, Austria voestalpine Stahl GmbH W. Neubauer, Austria Managing director, voestalpine Stahl GmbH H. Motz, Germany EUROSLAG, The European Slag Association, Duisburg U. Wiens, Germany German
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