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Sep 20, 2017 Ferronickel slag (FNS) is a by-product of nickel production that is used as an alternative fine aggregate. This study evaluates the workability, compressive strength, splitting tensile strength, flexural strength, modulus of elasticity and chemical leaching characteristics of concrete containing FNS from garnierite ore and fly ash.
The way of valorisation of the slag in concrete production would help to achieve several aims: conservation of the natural aggregate resources and reduction of the high costs of slag processing ...
employed in the production of blended cement. Even there are some research works about the properties of concrete, in which air-cooled and ground granulated FS is used as aggregate. The conclusions of these studies indicate that there is a great likelihood to use FS instead of natural aggregate in concrete. Steel slag has higher
Oct 01, 2015 Electric arc furnace (EAF) slag is a by-product of steel production in electric arc furnaces. Several studies have tried to demonstrate its suitability in civil engineering application, such as in bituminous mixtures and cement-based materials, due to its good physical, chemical and mineralogical properties. Particularly the re-use as coarse aggregate for concrete production has …
Recycled Concrete Aggregates (RCA), as used in Results and Discussion, present a high porosity which, for the production of the conventional type of concrete, constitutes a disadvantage. However, for the production of pervious concrete, high porosity is the main desired quality. [6-9, 11] Also previous research papers show that the use of steel ...
Blast furnace slag is a secondary aggregate used widely in construction because of its performance attributes and durability. Slag aggregates produced by Tarmac are supplied as CE marked products under the Factory production control process of ISO 9001:2008 for the production of products to BS EN 12342 - Aggregates for Unbound and Hydraulically Bound Mixture, BS EN 13043 - Aggregates for ...
Title: Combined Use of Natural and Artificial Slag Aggregates in Producing Self-Consolidating Concrete Author(s): Hatice znur z, Mehmet Gesoglu, Erhan G neyisi, and Swara Fuad Mahmood Publication: Materials Journal Volume: 113 Issue: 5 Appears on pages(s): 599-608 Keywords: artificial aggregate; cold bonding process; ground-granulated blast-furnace slag; self-consolidating concrete ...
Coarse aggregate consists of either (or a combination of) gravel, crushed gravel, crushed stone, air-cooled blast furnace slag, or crushed concrete, with particles generally larger than 0.2 inches. The maximum size of the coarse aggregates is generally in the range of 3/8 to 1 inches. Read more on why we use aggregates in concrete. Concrete ...
Steel slag aggregate (SSA) is a byproduct of the production of steel in an electric arc furnace. The high iron oxide content of the aggregate results in an aggregate that is very hard and very dense (SSA is 20-30% heavier than naturally occurring aggregates such as basalt and granite).
5. Applications of steel slag in civil engineering: Worldwide research. 5.1. Use of slag as a raw material in clinker production; 5.2. Slag utilization as an aggregate in concrete; 5.3. Slag utilization as mortar aggregate; 5.4. Slag utilization in unbound base layers in pavement; 5.5. Slag utilization in stabilized base courses in cement; 5.6.
Nov 14, 2018 Usage in other construction materials – Steelmaking slag can be used in preparing glass ceramics. It is a potential material for ceramic production. Also, a suitable addition of steelmaking slag can reduce the firing temperature needed for clay bricks. Steelmaking slag can also be used to produce coloured paving bricks and tiles.
Jul 01, 2008 Slag wool is made from blast furnace slag, a waste byproduct of steel production. The industry estimates that over 90 percent of the slag used for insulation is purchased directly from steel manufacturers. The remaining 10 percent is mined from waste disposal sites and landfills.
Steel slag aggregates have been categorized into different types based on their production process, some of the renowned types of steel slag aggregates include; basic oxygen furnace slag (BOF ...
2.1 Materials The materials used in the production of concrete for the study includes cement, granite aggregate, slag aggregate and sharp sand and water. a.) Cement Portland cement complying with NIS 444-1: 2003 was used as the binding agent. The cement was source from Lafarge Cement Company, Ewekoro, Ogun State. b.) Aggregates
For the production of cement or cementitious materials, any type of blast-furnace slag can be used, but the most common is granulated or glassy slag due to its ease in handling and more rapid reactions between the glass and other raw materials [7]. As cement is hydrated, calcium silicate hydrates (C-S-H) and calcium hydroxide (C-H) form.
Steel Slag - Asphalt Concrete INTRODUCTION Steel slag can be processed into a coarse or fine aggregate material for use in dense- and open-graded hot mix asphalt concrete pavements, (1,2,3) and in cold mix or surface treatment applications. (4) Proper processing of steel slag and special quality-control procedures are extremely important in selecting steel slag for use in asphalt paving mixes.
Aug 11, 2018 The use of slag aggregates from iron and steel production in construction dates back to the Romans who used crushed slag from the crude iron production of that time to build their roads. Nowadays, slag is still used to build roads. However, slag use is not limited to roads anymore, but slag aggregates are widely used in all kinds of civil works.
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 cultivated crops and pasture, improve soil texture and neutralize high soil acidity.
coal ash, blast furnace slag, steel slag aggregate. This type of use of a waste material can solve problems of lack of aggregate in various construction sites and reduce environmental problems related to aggregate mining and waste disposal. The use of waste aggregates can also reduce the cost of the concrete production (Kalyoncu,
slag does not have the hydraulic properties of water-cooled slag. Granulated blast furnace slag was first developed in Germany in 1853 (Malhotra 1996). Ground slag has been used as a cementitious material in concrete since the begin-ning of the 1900s (Abrams 1925). Ground granulated blast-furnace slag, when used in general purpose concrete in
Slag cement is a hydraulic cement formed when granulated blast furnace slag (GGBFS) is ground to suitable fineness and is used to replace a portion of portland cement. It is a recovered industrial by-product of an iron blast furnace.
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