Steel Slag Cement

Effect of Carbonation Degree on Mineral Composition, …

This study explores the utilization of steel slag in the cement industry through direct aqueous carbonation. The carbonation process produces nano-sized CaCO3 particles as the main product. Increasing the carbonation degree leads to larger particle size and higher crystallinity of CaCO3. The distribution of BOF slag particle sizes changes, and the specific …

ReviewSteel slag and its applications in cement and concrete technology: A review

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Slag Cement

Slag cement, made from steel-making byproducts, enhances the strength and durability of concrete while reducing waste, energy use, and greenhouse gas emissions. Slag cement is used in concrete for virtually any construction …

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Fracture Behavior of Steel Slag Powder-Cement …

The influence of different replacement ratios of steel-slag powder as cement-replacement material on the fracture performance of concrete is studied in this paper. A three-point bending fracture test is carried out on slag …

Mutual Activation Mechanism of Cement–GGBS–Steel Slag

To promote the large-scale recycling of solid waste, the hydration characteristics of blended cement with different amounts of GGBS (ground granulated blast-furnace slag) and SS (steel slag) were investigated. The optimum blending amounts of GGBS and SS in cement were 40% and 10% by mass, and the optimum dosage of Na2SO4 in the C50-S40-SS10 (50 wt.% …

Factors influencing the properties of a steel slag composite cement

To examine the feasibility of a possible application of a steel slag that is locally available in large quantities, for the preparation of steel slag composite cement (SSCC), the effects of the granularity of the steel slag and of varying the amounts of clinker, steel slag, and activators on the properties of SSCC were investigated. An optimal composition, which generated a cement that …

Review Accelerated carbonation of steel slag: A review of …

The carbonated steel slag concrete usually forms a dense interface microstructure [176]. Furthermore, the hydration products of Portland cement, free magnesium oxide, and calcium oxide in the concrete can also undergo carbonation, resulting in the formation of more carbonates that contribute to compressive strength.

Review Characteristics of steel slags and their use in cement and

In China, BOF slag accounts for about 70% of the annual steel slag production (Cheng and Yang, 2010). In the BOF process (Fig. 1), minor steel scrap and a large amount of molten iron from ironmaking as well as fluxes (lime/dolomite) are added into the furnace, and a 99% pure oxygen flow is applied at supersonic speed through a lance to initiate intense …

Properties of Steel Slag and Stainless Steel Slag as Cement

To enhance the understanding about the utilization of steel slags as a cementitious material, we comparatively studied the chemical, mineralogical and morphological properties of two types of steel slag; basic-oxygen-furnace carbon slag (BOF C) and electric-arc-furnace stainless steel slag (EAF S). Moreover, we studied the standard consistency, setting time and …

Steel Slag

An extensive literature review concluded that adding steel slag to concrete for shielding gamma and neutron radiation can increase compressive and tensile strength but reduce workability. Compared to conventional concrete, steel slag concrete's linear attenuation and removal cross-section is higher, while the half-value layer (HVL) is minimized.

EXPERIMENTAL STUDIES ON STEEL SLAG IN …

The aim of this research is to study the performance of steel slag as concrete as coarse aggregates compared to the conventional use of granites for the same purpose. The detailed objectives are outlined below: To assess the performance of dense cement mix prepared using steel slag (SSDA) and

Environmental benefit assessment of steel slag utilization and

Steel slag can replace cement as a supplementary cementitious material (SCM), or even be utilized alone as a pure binder material with the aid of carbonation treatment. In 2018, Mahoutian et al. (2018) reported their outcome of a pilot block using SS as a binder and granite as an aggregate. Compared to the traditional cement masonry block, the ...

A review of the application of steel slag in concrete

To address this issue, this paper examines the effect of incorporating steel slag as a supplementary cementitious material (SCM 2) and aggregate in concrete on various …

Strength characterization of steel slag–cement-stabilized

Further, the marine clay–slag–cement mixes containing 30% and 40% slag along with 6% cement and 10%, 20%, 30% and 40% slag along with 8% cement fulfills the requirement for use in subbase of the road. The study emphasizes on utilization of industrial waste such as steel slag in the more effective manner as the sustainable construction material.

Application of Steel Slag as an Aggregate in Concrete …

Utilizing treated steel slag as coarse/fine aggregate in concrete production is a high-value solution that can alleviate the worry about resource depletion and solve the negative impact of steel …

Applications of Steel Slag Powder and Steel Slag Aggregate in …

1. Introduction. Steel slag is a by-product of steel manufacturing [].Approximately 160 kg of steel slag is generated per ton of steel produced [].The common chemical compounds in steel slag are SiO 2, CaO, Fe 2 O 3, Al 2 O 3, and MnO [3, 4].The major mineral components of steel slag are C 3 S, C 2 S, C 4 AF, RO phase, and free-CaO [5, 6].Many studies have shown …

What is Steel Slag Concrete?

Recent research suggests that one solution may be found in recycled industrial waste, particularly in a by-product of steel-making referred to as steel slag. Below, we will …

Review Use of steel slag as sustainable construction materials: A

Steel slag is a solid waste derived from the steel-making process, which accounts for approximately 15% of the total crude steel output (Furlani et al., 2010; Pang et al., 2016).By 2016, approximately 832 million tons of steel were produced in China with an annual output of more than 100 million tons (Hasanbeigi et al., 2016), which exceeded half of the total steel …

Influence of steel slag on strength and microstructural

Geopolymer concrete (GC) utilizes industrial solid waste like steel slag, fly ash, and rice husk ash, offering a sustainable alternative to traditional cement. By reducing reliance on cement, GPC helps mitigate carbon footprints and promotes eco-friendly construction practices. With its significant commercial potential, GPC is poised to contribute to sustainable …

Application of Steel Slag as an Aggregate 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 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 particles can potentially be …

Preparation and properties of carbonated steel slag used in …

In this paper, the indirect carbonation process of steel slag is studied, the cementitious materials are prepared by replacing part of cement with carbonated steel slag, …

Review Characteristics of steel slags and their use in cement and

In China, BOF slag accounts for about 70% of the annual steel slag production (Cheng and Yang, 2010).In the BOF process (Fig. 1), minor steel scrap and a large amount of molten iron from ironmaking as well as fluxes (lime/dolomite) are added into the furnace, and a 99% pure oxygen flow is applied at supersonic speed through a lance to initiate intense …

Cement : Iron and steel slag products : NIPPON …

The majority of the demand for these products comes from the field of cement. Approximately 40% of iron and steel slag products, and 60% of blast furnace slag, are used in cement. Most of these products are used as a raw material in …

Steel-slag: a supplementary cementious material and

This article introduces a commercialised energy-saving cement made by co-grinding OPC clinker with steelmaking slag (steel-slag) and blastfurnace slag that represents a different …

Application of Steel Slag as an Aggregate in Concrete …

Typical morphology of steel slag [].(a) BOF steel slag.(b) EAF steel slag.(c) LF steel slag.BOF steel slag is the solid waste produced in the converter steelmaking process, and its discharge is approximately 100–150 kg per ton of BOF steel [20,21,22,23].BOF steel slag commonly has a grayish-white appearance and a vesicular nature, with many non-interconnected pores [].

Comprehensive utilization of steel slag: A review

Recently, there have been numerous ways to utilize steel slag. For instance, steel slag's high strength, good wear resistance, and stability make it a successful material for road infrastructure [5, 6].It can also be employed as the raw material in the preparation of cement due to its chemical similarity to Portland cement [7, 8]; It can also be used for wastewater …

Steel Slag/Precarbonated Steel Slag as a Partial Substitute for

Although amounts of steel slag are left as waste, advances in treatment technologies have made steel slag a potential low-carbon supplementary cementitious material. Replacing cement with steel slag will drastically reduce carbon footprint, especially, in the engineering field where there are efforts to improve the geological properties of soft soil using …

Mechanical properties and hydration process of steel slag-cement …

Steel slag (SS), by-product from the steelmaking process, accounts for about 15–20% of steel output depending on the composition and production process of steel [11], [12], [13].China produces exceeding 100 million tons of SS per year [14], however, the utilization rate is under 30% [15].Improving the utilization rate of SS is the key to solve the problem of …

EXPERIMENTAL STUDIES ON STEEL SLAG IN …

to desired size, prior to being used or sold. The main uses of steel slag were in road bases and surfaces concrete, asphaltic concrete. and as aggregate in hydraulic cement concrete. In the …

Steel Slag: CarbiCrete's Not-So-Secret Weapon

CarbiCrete's technology replaces cement in the concrete mix with steel slag, an industrial by-product of the steelmaking process. Per the Linesight report, steel prices remained relatively low in 2022; sector demand is predicted to stabilize in 2023, due to infrastructure projects "supported by federal and local government investments in ...

Steel slag and its applications in cement and concrete technology…

Although steel slag cement outperformed Portland cement in terms of durability and chemical properties, the alkali reaction was reduced [61, 62]. The carbonation of BOF was also investigated using ...