The 2015 recovery quantities for blast furnace slag are shown in Fig. 15. Granulated slag makes up 86 %, of which almost the entire amount is used in the cement industry. The fields of application of the air-cooled slag are mainly in road construction and other uses in the construction industry. 4 Trends in slag recycling
the free CaO and free MgO, which can cause volume instability, thus limiting the use of steel slag in road construction. Keywords: metallurgical waste; steel slag; road construction; asphalt. 1.
Steel slag has been used as aggregates in asphalt mixes to improve the properties of asphalt matrix in construction of roads. Steel slag has been incorporated in asphalt concrete mix-tures and studied for its mechanical and …
There are many studies on the use of BOF slag for road construction, but they use treated slag or remain at a laboratory level, as reflected in the reviews conducted by Kambole et al. ... Slag utilization in the road construction industry means that dumping on landfills is avoided. This is an avoided impact, which was taken into account as an ...
Construction and Building Materials. Volume 238, 30 March 2020, 117713. Use of carbide slag from acetylene industry for activation of ground granulated blast-furnace slag. Author links open overlay panel Wentao Li, Yaolin Yi. ... This study investigates the use of carbide slag (CS), an industrial by-product generated in …
Except for application in the construction industry, SS is widely used in the agricultural field. Due to its alkaline property, it can be used to elevate the pH of soil and remedy soil acidity by neutralizing Al 3+ toxicity (Cristina Fernandes Deus et al., 2019). This application is similar to the use of limestone but can achieve better ...
Iron slag has been used profusely in the construction industry, although steel slags are only partially consumed as a construction material due to its higher iron and calcium oxide content. However, steel slag has been found to have a high potential for several environmental applications due to its unique chemical properties.
In recent years, the construction industry has struggled with a variety of issues such as material availability, supply channel management, and the increasing cost of construction materials. These …
Utilization of steel slag in construction industry as aggregate and cementitious material for the applications toward bricks production, asphalt mixes, radiation shielding concrete, …
The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper …
Among the major contributors to carbon emissions, the construction industry stands out, with a staggering 9.95 Gt/y of CO 2 steel slag production exceeds 120 million tons (Gao et al. 2023).
Copper slag is also one of the material considered as an industrial waste which can be used in construction Industry contribute to the reduction in consumption of natural resources.
Utilization of steel slag in concrete construction. Several studies have been conducted to examine the utilization of steel slag aggregates in the building construction industry. FCS incorporation as an aggregate replacement in concrete and mortar has been investigated as a result of its favourable chemical, physical, and mechanical ...
Looking at the merits and associated benefits, some of the top steel-producing countries have adopted or upgraded with a recycling technique of steel slags from time to time for various applications (as shown in Fig. 3), such as for road construction, soil enrichment, cement production, etc. Notably, recycling steel slag for a …
Various researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for …
Volume expansion is detrimental for the slag to be used in construction materials where it primarily affects the durability of concrete and other construction materials. ... According to a report by the UN Environment Program, the construction industry contributes to 39 % of the annual global CO 2 production 65. The production of …
This is primarily reflected in the underutilization of steel slag in road construction and agriculture . Steel slag contains a large amount of free calcium oxides (f-CaO), which reduces its volume stability, making it unsuitable for using as a construction material in road and engineering projects. ... In the metallurgical industry, steel slag ...
1. Introduction. Steel slag (SS) is a waste residue produced by steelmaking, which produces more than 110 million tons each year in China, but the effective utilization rate of SS is about 22% [1].The accumulation of SS is not only a waste of resources, but also a pollution to the environment [2], [3], [4].. Researches show that SS and Portland …
Utilization of steel slag in construction industry as aggregate and cementitious material for the applications toward bricks production, asphalt mixes, radiation shielding concrete, ...
The Linz–Donawitz (LD) slag is an industrial waste generated in Linz–Donawitz process of steel making. It is not gaining importance in construction industry because of its volume instability, and presence of excessive phosphorous and sulphur content. Suitable accelerated ageing and masking of harmful materials can …
Use of steel slag as sustainable construction materials: A review of accelerated carbonation treatment. DOI: 10.1016/j.rnrec.2021.105740. Authors: …
Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper slag, fly ash, ferro-chrome slag, and so on into the construction industry. Steel slag, which is mostly calcium carbonate, is created as a …
Abstract. In this review, steel slag usage in the cement and concrete industry and its environmental effects were examined. Also, its physical and chemical structure, its effect on the characteristics of concrete, and its applications in different usage areas were specified. Within the scope of the study, literature was examined by …
The pretreated steel slag can be used as aggregate in the production of concrete or asphalt (which is the predominant recycling route) or used directly for road …
Consequently, construction waste aggregates and blast furnace slag can be used to improve the mechanical properties, workability, and chemical resistance of the conventional concrete mixtures. Since the construction waste and blast furnace slag wastes are available in vast amounts in Turkey, it is economically and environmentally …
The use of ladle furnace basic slag (LFS) as a cementitious material in industrial applications requires an in-depth knowledge of its characteristics. This paper presents the data characterizations of several kinds of LFS, setting out referential values for their use in construction and civil engineering applications that refer to chemical, …
Historically, slag has been used for the construction of roads and as filler material. However, more recently, slag uses have been expanded to include use as a …
In such an attempt to yield better results from slag usage in construction industry, Carvalho et al. investigated the use of water and air cooled basic oxygen furnace slags as partial substitutes of clinker in CPIII Portland cement production and examined the resulting mechanical properties. As reported in the end of the research, both air ...
The steelmaking slag containing high Fe content can be regarded as a significant Fe source, and recycling CaO and MgO from it can reduce the consumption of lime and dolomite (Dippenaar, 2005; Yang ...
This review focuses on the recent advances on utilization of steel slag in construction sector and the impact of steel slag incorporation has been described in detail. Utilization of steel slag in construction industry as aggregate and cementitious material for the applications toward bricks production, asphalt mixes, radiation shielding ...
Highlights. •. Slag is an engineering waste and by-product in the production of iron in a blast furnace. •. AAS consists of alumina-silicates and silicates of lime; this …
There is a necessity to utilize steel slag on large scale in construction industry. The review has been designed to include various methods and types of steel slag to be used in construction industry as coarse aggregate, fine aggregate and cementitious material.
Steel slag is a large amount of residual material produced in the process of steel manufacturing. With the requirements of sustainable development in China, the utilization of steel slag has become a hot issue. Through an in-depth study on steel slag, it is apparent that it has been widely used in various fields in recent years. The resource …
The comprehensive utilization rate of steel slag in the United States was relatively high, reaching 84.4%, with the majority being utilized for road construction …
Blast Oxygen Furnace (BOF) slag represents one of the largest waste fractions from steelmaking. Therefore, slag valorisation technologies are of high importance regarding the use of slag as a …
Slag is a sustainable product that can be recycled and reused multiple times in various construction projects. Using iron and steel furnace slag helps preserve our natural resources, and reduce ...
1. Introduction. This paper aims to bring attention to the carbon footprint in the construction industry (building, maintaining, and deconstructing the structures), since the construction industry is listed as the single largest global consumer of resources [1,2].In the European Union, building construction consumes 40% of materials and 40% …