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Dry slag granulation: producing valuable by-products from waste - CSIRO. Our sustainable, dry method for slag granulation derives value from waste and has the potential to …
The massive accumulation of iron ore tailing (IOT) results in land resource wastage and increases the possibility of environmental pollution. In this study, the feasibility of using low-carbon alkali-activated ground granulated blast-furnace slag (lime/Carbide slag (CS)-GGBS) and coal fly ash (CFA) instead of portland cement (PC) for solidifying …
Control of drying of the slag to produce Granulated Blastfurnace Slag with consistent moisture content. Quality control during milling, by changes in mill running parameters to control surface area and particle size distribution. Chemical and Physical tests are carried out on the finished product: 1. Full chemical analysis in accordance with ...
The development of new binders, as an alternative to traditional cement, by the alkaline activation of industrial by-products (i.e. ground granulated slag and fly ash) is an ongoing research topic in the scientific community [Puertas F, Amat T, Jimenez AF, Vazquez T. Mechanical and durable behaviour of alkaline cement mortars reinforced with …
Dry granulation offers advantages over these common slag handling practices, including the production of by-products, the recovery of thermal energy, and …
Dry slag granulation with integrated heat recovery. July 2011. Conference: 1st International Conference on Energy Efficiency and CO2 Reduction in the Steel Industry (EECR Steel 2011) At:...
In this study, the drying shrinkage and crack reduction characteristics of blast furnace slag concrete mixed with expansive and swelling admixtures were investigated. Basic performance experiments ...
1. Introduction. Portland cement (PC) production is very energy intensive and is responsible for 5–8% of man-made CO 2 emissions [1].As a result, various attempts to reduce the cement clinker consumption have been made over the years, one of which is the extensive usage of industrial by-products such as silica fume, fly ash and ground …
Given the shared metallurgical lineage between steel slag and ground granulated blast furnace slag (GBFS), the former is being considered for cotreatment …
Materials. (1) Cement: For the blast furnace slag concrete test, OPC with a neness of 3,483 cm2/g produced in Korea was used as shown in Tables 3 and 4. 1. (2) GGBS: In addition to cement, GGBS ...
PDF | On Aug 24, 2018, Shabarish V. Patil and others published Granulated Blast-Furnace Slag (GGBS) based Geopolymer concrete - Review Concrete - Review | Find, read and cite all the research you ...
The goal of the current study is to determine the dissolving effect of slag in water. Five percentage values of slag were taken up for the study: 0%, 2.5%, 5%, 10%, and 20%. The study is based on two methods of mixing. The first method is the traditional mixing process, which involves addition of slag directly with other concrete proportions such as …
This study aims to investigate the feasibility of using ferronickel slag (FNS) blended with ground granulated blast furnace slag (GGBS) to produce alkali-activated cements (AACs). Sodium silicate (Na 2 SiO 3) and sodium hydroxide (NaOH) are used to activate the GGBS/FNS blends with mass ratio varying from 100:0 to 40:60. The setting …
In order to reduce the swelling caused by the formation of ettringite, industrial by-products had been used as substitutes for lime and cement, such as ground granulated blast-furnace slag (GGBS) [7, 38, 55, 56, 58].However, GGBS needed alkali activation to produce calcium silicate hydrate (CSH), calcium aluminate hydrate (CAH), and calcium …
1. Introduction. Ground granulated blast-furnace slag is an amorphous by-product of iron industry. Research has shown that blast-furnace slag can be alkaline activated to potentially substitute the ordinary Portland cement (OPC) as an alternative binder in concrete [1], [2].Alkali activation of slag is the process of promoting the …
This article discusses the engineering and computational methodology of designing the main units of a blast-furnace slag dry granulation plant with a capacity of 1 million tons of …
Superfine ground granulated blast furnace slag (SGGBS) can reduce the drying shrinkage of GGBS concrete and fly ash concrete when the wet curing time is insufficient. View full-text Article
Abstract. Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Blast-furnaces are fed with controlled mixture of iron-ore, coke and limestone, and operated at a temperature of about 1,500°C. When iron-ore, coke and limestone melt in the blast furnace, two products are produced—molten …
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed HVG …
Such granulated slag, when finely ground has been found to exhibit excellent cementitious properties either used with Portland cement or alkali activated [3]. This paper is a review of published studies on the utilization and efficiency of GGBFS on the properties of mortar and concrete. ... Jianyong, Y. Yan, A study on creep and drying ...
Ground-granulated blast-furnace slag (GGBS) is a supplementary cementitious material used in concrete and is produced by drying & grinding of Granulated blast furnace slag into a fine powder. GGBS's intrinsic properties contribute towards manufacturing sustainable concrete with higher compressive strength, reduced permeability & …
The use of Ground Granulated Blast Furnace Slag reduces the heat generated during the hydration of cementitious materials. This is especially valuable in large concrete pours, as it minimizes the risk of thermal cracking. GGBFS is used as combination material with cement in most of the countries. Further, it can be added with cement in …
Experiments were conducted on 150 × 600 mm cylindrical specimens to investigate creep and drying shrinkage of concrete containing ground granulated blast furnace slag (GGBFS).
Therefore, this study aims to determine the contribution and leaching mechanism of the separate slag constituents of a water granulated iron silicate slag – …
Granulated blast furnace slag (GBFS) is obtained by rapidly quenching the molten slag by using high-pressure water jets. It is glassy granular particles having generally smaller than 5 mm particle size like sand. The GBFS is often used after further processed by drying and then grinding to a very fine powder.
To deter - mine the effect of the molten slag temperature and blowing water temperature on the grain size and density of water granulated slag, a experimental water granulation apparatus was prepared, as shown in Fig. 2. The apparatus consists of a 50 kW induction furnace, a cooling water tank, a booster. Fig. 1.
Ordinary Portland cement (Type I) with specific gravity of 3.15 and fineness of 359 m 2 /kg, ground granulated blast furnace slag (GGBS) with specific gravity of 2.9 and fineness of 380 m 2 /kg, and Class F Fly Ash with a specific gravity of 2.3 and activity index of over 75% at 28 days determined according to BS EN450, were used in this …
The FS of concrete at a water to binder ratio of 0.45 is 4.216 MPa for a control mix that does not include GGBS. In addition, the FS is increased to 4.367 MPa, 4.47 MPa and 4.61 MPa, which is 3.58 percent higher, 6.02 percent higher and 9.34 percent higher than the control. 2022, 14, 8783.
Slag is a high volume by-product from the metal smelting process. Globally, hundreds of millions of tonnes of molten slags are produced each year. Slag is commonly air-cooled in large pits and landfilled or used for road-based materials after crushing and screening. In some modern integrated steelworks, molten blast furnace slag is granulated ...
This paper focuses on stabilisation of kaolin clay at ambient temperature using fly-ash based geopolymer incorporating ground granulated blast-furnace slag (GGBFS). Comprehensive experimental programme was conducted including soil plasticity, compaction, unconfined compressive strength, durability and leaching. These tests were …
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