A novel process for the production of angular-shaped high strength fly ash aggregates from an energetic, and environmental perspective is presented in this paper and compared with the production of natural aggregates. This study is significant because there is an increasing demand for aggregates and no published research addressing …

Depending on the used production technology, the steel slag can be divided into a basic oxygen steel slag, an electric arc furnace slag and a ladle furnace slag (De Brito and Saika, 2013). The steel slag is used as a secondary cementitious binder, or aggregates for road construction (Sheen et al., 2013; Manso et al., 2004).

Steel slag particles can potentially be used as aggregates in concrete production. However, the volume stability of steel slag is poor, and the direct use of …

Ferrochrome slag aggregates (FCSAs) have similar mechanical properties as natural aggregates and are a by-product of the ferrochrome alloy industry, with a production rate of about 1.5 tons per ...

Slag, as shown in Fig. 1, is the 16th ingredient of high-performance concrete production [22], called supplementary cementitious materials (SCM) [23], that can enhance the strength and durability of concrete [2].The highly fine slag powder, with a surface area of 400–600 m 2 /kg and a bulk density of 1200 kg/m 3, can be mixed with …

This study evaluates the use of Steel Slag Aggregates (SSA) as a substitute for natural aggregates in the production of hot mix asphalt (HMA) for road construction. Based on intensive laboratory ...

Use of steel Slag as coarse and fine aggregate in concrete was presented. •. Effect of curing temperature and time on concrete containing steel slag was presented. •. Different usage areas of steel slag were recommended for future studies. Abstract.

In the US, about 60.3% of the total steel slag production is directly used as road base, while the remainder is used for asphaltic concrete (10.9%), fill (10.8%) and cement clinker production ... Use of BOF slag as aggregates in concrete. In general, concrete with BOF slag aggregate was found to have poor workability (Pang et al., ...

Artificial steel slag aggregates were prepared via carbonating the mixes of steel slag, fly ash and Portland cement, of which the microstructure, property and their impact on the performance of concrete were investigated.Calcium carbonates were the main binders in the aggregates, of which the formation yielded dense microstructures …

Electric arc furnace (EAF) steel slag, generated from carbon steel production process, is the most interesting. from the asphalt technology point of view. This paper aims to explore the ...

Steel slag is a by-product of the steel industry and can be used potentially as aggregate in asphalt mixture. This study evaluates the use of Steel Slag Aggregates (SSA) as substitute for natural aggregates in the production of hot mix asphalt (HMA) for road construction. Based on intensive laboratory testing program, the characteristic …

Request PDF | Production of concretes using slag aggregates: Contribution of increasing the durability and sustainability of constructions | The main by-product of …

Slag of iron and steel used as aggregates for asphalt roads can be recovered as by-products. The steel slag is a residue of the production process of …

Ferrous slag is currently underutilized. Although the construction industry does use some slag as an aggregate, most is simply discarded. However, slag could be used to treat acid soils or acid mine drainage. Doing so would both offset the cost of restoring abandoned mine areas, as well as decrease steel manufacturers' current …

Steel slag can be directly used as sinter flux and iron smelting flux for the production of steel . The pretreated steel slag can be utilized directly for road …

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. Slag is particularly useful as an aggregate, due to the high mechanical resistance of the slag grains which exceeds those of many natural …

1. Introduction. Ferrochrome slag is a by-product of the production of ferro-chrome alloy, an essential component in stainless steel. The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately 8–12% of chromium oxide is generated …

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 …

The production and use of steel slag then was 16.8 million tonnes, ... than granite aggregate. Thus, to use steel slag a ggregate in asphalt mix, it shall not simpl y follow .

Steel slag is a by-product of the steel industry and can be used potentially as aggregate in the asphalt mixture. This study evaluates the use of Steel Slag Aggregates (SSA) as a substitute for natural aggregates in the production of hot mix asphalt (HMA) for …

30,000 tonnes of aggregate [15]. This fact notwithstanding, large quantities of BOF slag can meet the needs of aggregates for road construction. The use of waste and by-products is one of the most promising techniques for sustainable roads, as it provides a double benefit [16]. On the one hand, it reduces the extraction and …

1.5.1.6 Slag. Slag aggregates are obtained by crushing of smelter slag or by special treatment of fire-liquid slag melt (molten slag aggregates). Currently there are many types of concrete that are developed and used in construction that include metallurgical slags both as a binding component and as fillers.

This paper investigates the use of slag aggregates of electric arc furnace (EAFS) and ladle furnace slag (LFS) in replacement of fine and coarse conventional …

In 2017, around 1200 million tonnes of steel were produced by the integral route and around 480 million tonnes were produced by the electric route [ 5 ]. These …

Therefore, steel slag particles have the potential to be used as coarse/fine aggregate in concrete production. Steel slag is still a solid waste rather than an available resource because of the poor volume stability of SSA. The expansion chemical components in steel slag include f-CaO, f-MgO, and β-C 2 S. Among them, f-CaO is the main reason ...

The main by-product of the steel industry is slag. This paper investigates the use of slag aggregates of electric arc furnace (EAFS) and ladle furnace slag (LFS) in replacement of fine and coarse ...

In the cement production two main ores are used: limestone rich in CaO, and clay, rich in SiO 2, Al 2 O 3, Fe 2 O 3 and MgO. ... A Systematic Literature Review, approaching the use of blast furnace slag in cementitious materials used in paving was performed, in which the physical-chemical properties and mechanical resistance were …

Since the construction waste and blast furnace slag wastes are available in vast amounts in Turkey, it is economically and environmentally suitable to use these materials as aggregates in the production of more durable concrete mixtures. © 2015 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of Istanbul …

The LS was collected from the lithium salt plant in Xinyu, Jiangxi Province (China). These raw materials were dried in an electric oven at the temperature of 105 °C. Afterwards, they were crushed and ground to fine powder. The obtained fine powder was sieved through a 75 μm nylon mesh sieve before being used for LWA production.

This study focuses on fine aggregates and their use. The first step in determining the ideal replacement ratio is to perform a compressive strength test on a 150 mm × 150 mm × 150 mm cube. Over the course of 28 days, steel slag replaced coarse aggregate at levels of 20%, 0%, 60%, and 80%.