Slags are a co-product produced by the steel manufacturing industry and have mainly been utilised for aggregates in concreting and road construction. The increased utilisation of slag can increase economic growth and sustainability for future generations by creating a closed-loop system, circular economy within the metallurgical industries. …
Large amount of slag is obtained during the production of ferrochromium. This by-product has properties comparable to natural aggregates. However, almost all of the ferrochromium slag is landfilled. The main objective of this study was to investigate the effects of ferrochromium slag aggregate on the mechanical properties and permeability …
Through steel slag usage in such applications, a solution has been provided for preventing the rapid consumption of our limited natural resources and solving the environmental problems caused by waste to some extent. Steel slag production is …
Blast furnace slag (also called fine granulated blast furnace slag [GGBFS]) is a material that we call as one of the supplementary cementitious materials. Ground granulated blast furnace slag is the glassy material formed from molten slag produced in blast furnaces as an industrial by-product from the production of iron used in …
Figure 1. Slag aggregate was used to build the Roman Appian Way over 2000 years ago. Source: National Slag Association Every day you probably use a steel industry byproduct, slag, without realizing …
Steel slag aggregate (SA) also exhibits a more angular surface, lower crushing value, and higher specific gravity than natural aggregate (NA) [7], making it a potential substitute for natural gravel being used in concrete production.
Steel slag is a solid waste produced in crude steel smelting, and a typical management option is stockpiling in slag disposal yards. Over the years, the massive …
World production data for slag were unavailable, but iron slag from blast furnaces may be estimated to be 25% to 30% of crude (pig) iron production and steel furnace slag may be estimated to be 10% to 15% of raw steel production. In 2021, world iron slag production was estimated to be between 340 million and 410 million tons, and steel slag ...
Manufacturing non-sintered ceramsite from dredged sediment, steel slag, and fly ash for lightweight aggregate: production and characterization.
Utilization of steel slag in construction industry as aggregate and cementitious material for the applications toward bricks production, asphalt mixes, radiation shielding concrete, concrete, self-compacting concrete, ceramic manufacturing, waterproof mortars and geopolymer composites fabrication has been discussed in detail.
They are widely used in transportation industry, construction, and cement manufacturing as well as wastewater and water treatment. This makes slag an important substitute for natural resources, leading to significant minimization in …
The energy consumption for aggregate production is relatively small, compared with the energy consumption for the production of concrete but the transport of aggregates from quarry to customer has a large energy impact and is increasing. Therefore, an obvious green solution is to use local aggregates as far as possible.
Slag cement use can be traced to the 1700's when the material was combined with lime to make mortars. The first United States production was in 1896. Until the 1950's, granulated slag was used in the manufacture of blended portland cements, or as raw feedstock to make cement clinker.
The aggregate standards contain additional requirements for blast furnace slag and steel slag with respect to volume stability. In recent years about 60% of blast furnace slag has been used for cement production/concrete addition and about 24% for road construction.
Semantic Scholar extracted view of "Manufacture and performance of cold bonded lightweight aggregate using alkaline activators for high performance concrete" by Le Anh Tuan Bui et al.
Learn more on how General Kinematics is leading the charge in the aggregate manufacturing process with expert service and equipment.
Materials Science, Engineering. "SP-114: Fly Ash, Silica Fume, Slag, and Natural…. 1989. This paper will discuss that 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 similar to that….
Steel slags are industrial by-products of steel manufacturing, characterized as highly calcareous, siliceous and ferrous. They can be categorized into basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag, and ladle furnace (LF) slag.
Artificial aggregates (AAs) are man-made construction material, and the properties greatly depend on its manufacturing process (e.g. granulation and hardening) and the raw materials (usually different source of wastes) used. This paper reviews the granulation process and suitable raw materials for each hardening method.
Request PDF | Manufacturing non-sintered ceramsite from dredged sediment, steel slag, and fly ash for lightweight aggregate: production and characterization | Green and low-carbon materialization ...
A synthetic aggregate may also be the byproduct of manufacturing and a final burning process—blast furnace slag is an example of a synthetic aggregate. Briefly, blast …
Copper slag, which is the waste material produced in the extraction process of copper metal in refinery plants, has low cost, and its application as a fine aggregate in concrete production reaps many environmental benefits such as waste recycling and solves disposal problems.
Literature suggests that steel slag is a favorable choice for use as a coarse aggregate in road construction, and it may also serve as a good filler and fine …
Recent advances in manufacturing technology of artificial aggregate were reviewed. •. Sintered aggregates usually show low density and good physical properties. •. Accelerated carbonation is a green and carbon negative approach with excellent CO 2 uptake. •. Most artificial aggregates are classified as lightweight aggregate and their ...
This paper investigates the utilization of washing aggregate sludge (WAS) waste generated from a local aggregate quarry and ground granulated blast furnace slag (GGBFS) to manufacture sintered aggregate. The properties of sintered aggregate were characterized by physical and mechanical tests and microstructural analysis.
Figure 1. Slag aggregate was used to build the Roman Appian Way over 2000 years ago. Source: National Slag Association Every day you probably use a steel industry byproduct, slag, without realizing it. Slag is a common construction material in the building of roadways, bridges and buildings. The ancient Romans used slag to build the …
Green and low-carbon materialization for dredged sediment (DS) is limited due to its low pozzolanic activity. In this study, a novel DS-based non-sintered lightweight aggregate (LWA) is developed by steel slag (SS) and fly ash (FA) activation. Process optimization is performed by the response surfaces, and the basic properties and characterization of …
Utilization of steel slag in construction industry as aggregate and cementitious material for the applications toward bricks production, asphalt mixes, radiation shielding concrete, …
Steel slag is a byproduct from either the conversion of iron to steel in a basic oxygen furnace, or the melting of scrap to make steel in an electric arc furnace. …
The steel slag produced during the primary stage of steel production is referred to as furnace slag or tap slag. This is the major source of steel slag aggregate. After being tapped from the furnace, the molten steel is transferred in a ladle for further refining to remove additional impurities still contained within the steel.
The slag from Puertollano plant has been characterised [6,7] and several applications have been investigated as grog material in manufacture of construction bricks[8,9] and synthesis of glassceramics.
This paper first illustrates the production processes, properties, and applications of steel slag, and then summarizes the key findings of the environmental benefits for steel slag utilization using life cycle assessment from the reviewed literature.
Abstract: Steel slag is a solid waste produced in crude steel smelting, and a typical management option is stockpiling in slag disposal yards. Over the years, the massive production of steel slags and the continuous use of residue yards have led to vast occupation of land resources and caused severe environmental concerns. Steel slag …
Copper slag is produced during matte smelting and converting steps of pyrometallurgical production of copper from copper ores, when silica is added. It combines with the oxides to form silicates phases.
Around 70% of the world's steel production depends on the blast furnace process (integral route), as the availability of scrap limits electric arc furnace production …
