The current study addresses the growing environmental issue of waste from blast high furnaces, particularly iron and steel plants in Libya. It investigates the fresh and …
In this study the coarse aggregate (CA) were partially replaced with iron slag aggregate (ISA) at different proportions of 0%, 10%, 20%, 30% 40% and 50%. Compressive strength and …
NewCem Slag is a finely ground, granulated blast furnace slag (GGBFS) available to blend with conventional Portland cement to deliver a strong, high-quality, durable concrete. A high-performing, sustainable product, NewCem is …
A guide to the use of iron blast furnace slag in cement. and concrete, Australian Slag Association, 1997. 40. A guide to the use of steel furnace slag in asphalt and.
This paper briefly reviews some of the workability properties indicating the fresh-state performance of iron/steel slag concrete. The effects of different tests due to slag content are also examined.
The American Concrete Institute (ACI) has recently published ACI 233R-17 Guide to the Use of Slag Cement in Concrete and Mortar. As slag cement use is rising in the U.S., understanding how slag cement works best in various situations is increasingly important for contractors and engineers.The guide covers information on slag cement chemical properties and product …
As a result of the studies performed within this scope, steel slag, a by-product from iron and steel plants, is an important waste product that can be recycled as part of …
The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations …
Industrial by-product utilization in concrete has been an important choice of researchers over the years (Khan et al., 2016; Qasrawi, 2014).Steel slag has been utilized as aggregate/cementing material in concrete by various researchers over the years (Faraone et al., 2009).Recycling of metallurgical by-products will ensure the sustainable industrial production and greener …
The two types of concrete aggregate that are manufactured using iron and steel slag as a raw material and which are covered by JIS standards are blast furnace slag aggregate and electric arc furnace oxidizing slag aggregate. Each of …
The influence of iron slag has been examined on workability. The slump value of all mixes is specified in Table 6, which shows the comparison of slump values of fresh concrete. The research findings indicate that iron slag concrete experience a gradual decrease in workability as the iron slag replacement level increases.
In the two last decades, world production of pig iron and steel has undergone a significant increase. In 2018, 1252.87 and 1806.46 million tons of pig iron and steel, respectively, were produced ...
The disparities in chemical composition between steel slag powder (SSP) and ordinary Portland cement primarily lie in SSP's higher iron oxide content and a small quantity of f-CaO and f-MgO. ... After undergoing such a phase transition, steel slag concrete exhibits lower residual strength after exposure to high temperatures exceeding 600 °C.
The guide covers information on slag cement chemical properties and product types, storage, handling, batching, proportioning, and the effects on properties of fresh and hardened …
Singh G, Siddique R (2016) Strength properties and micro-structural analysis of self-compacting concrete made with iron slag as partial replacement of fine aggregates.Constr Build Mater 127:144–152. Singh G, Siddique R (2016) Effect of iron slag as partial replacement of fine aggregates on the durability characteristics of self-compacting ...
Slag cement begins with the production of iron. The heart of the process is the blast furnace that refines iron ore into iron. The ingredients are heated to nearly 1500 degrees Centigrade to form two components: iron and molten slag.
slag (GGBFS). Air-cooled iron slag and steel slag are used primarily as aggregates in concrete (air-cooled iron slag only); asphaltic paving, fill, and road bases; both slag types also can be used as a feed for cement kilns. Almost all GGBFS is used as a partial substitute for portland cement in concrete mixes or in blended cements.
the slag is used in cement and concrete, the CaO and SiO. 2. contents are primarily. ... BFS (iron slag) is particularly suitable for high-performance concrete because. the hardening ...
The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree Celsius.
The primary minerals that make up steel slag include dicalcium silicate (C 2 S), tricalcium silicate (C 3 S), calcium‑magnesium olivine (CaMg[SiO 4]), tetracalcium iron aluminate (C 4 AF), dicalcium ferrate (C 2 F), RO (oxide solid solution of Mg 2+, Fe 2+, Mn 2+), free calcium oxide (f-CaO).The mineral composition of steel slag is comparable to that of silicate cement, …
Utilization and efficiency of ground granulated blast furnace slag on concrete properties – A review. Erdoğan Özbay, ... Halil İbrahim Durmuş, in Construction and Building Materials, 2016. 1 Introduction. Blast furnace slag is a byproduct acquired in the production of pig iron in the blast furnace and is involving essentially of silicates and alumino-silicates of calcium and of other ...
NewCem® Slag Cement 2. Manufacturer Holcim (US) Inc. 8700 Bryn Mawr Avenue Chicago, IL 60631 Phone: (888) 646-5246 E-mail: ask@holcim ... Slag cement is a by-product of iron manufacturing. When mixed with water and portland cement or portland limestone cement, the concrete sets and hardens. The hydration reaction forms a fiber-like ...
A. Blast-furnace slag is the nonmetallic product consisting essentially of silicates and aluminosilicates of calcium and other bases that develop in a molten condition simultaneously …
The iron slag (IS) in concrete satisfies the physical characteristics, because of its morphology and minimal calcium silicate content, slowing down the hydration of concrete mixtures. Thus, the mechanical, chemical, and physical properties of conventional concrete can be amplified by adding IS [19]. In addition to addressing the problems ...
Iron slag (IS) an industrial bi-product, can be utilized as natural sand (NS) in developing non-traditional concrete [13]. 'Iron slag' a byproduct of iron manufacturing industry resembles to NS …
slag (GGBFS). Air-cooled iron slag and steel slag are used primarily as aggregates in concrete (air-cooled iron slag only); asphaltic paving, fill, and road bases; both slag types also can be used as a feed for cement kilns. Almost all GGBFS is used as a partial substitute for portland cement in concrete mixes or in blended cements.
The use of slag cement as a cementitious material dates back to 1774, when a mortar was made using slag cement in combination with slaked lime (Mather 1957). In 1862, a granulation …
The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of slag are produced: - Blast-furnace slag—The nonmetallic product, consisting essentially of silicates and aluminosilicates of calcium and of other bases, that is developed in a molten condition …
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 …
Iron and steelmaking slag is a by-product of the iron and steelmaking process. Slag has traditionally been used as a component of cement and construction aggregate. NKK has led the industry in promoting the effective use of slag. In this paper, fine concrete aggregate, known as Sandy-S, and slag sand-capping material are introduced as new ap-
were compared with conventional concrete. Thus the use of iron slag in concrete could enhance the strength in concrete. Keywords: Natural coarse aggregate, Iron slag, Iron slag aggregate, concrete, cement 1. Introduction Iron slag is a by-product of the iron and steel making process. Steel cannot be prepared in the Basic Oxygen
Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during the year (Worldsteel …
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 …
Iron slag (IS) is one such industrial by-product derived from the iron and steel industries. IS can be processed to resemble the size of natural fine aggregate (NFA) in …