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Properties of concrete with processed granulated blast-furnace slag …

The present investigation intends to explore the suitability of unused granulated blast-furnace slag (GBS) stocks as fine aggregate in concrete. The GBS was processed using a vertical shaft impactor to modify the shape parameters of the granules. ... compressive strength, tensile strength, stress–strain characteristics, drying shrinkage and ...

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Activation of ultra-fine steel slag and ground granulated …

For instance, materials like ground granulated blast furnace slag (GGBFS), steel slag ... Following the drying process, the samples were immediately milled to pass through a 200mesh sieve. The ground PG samples, along with the other samples, were then subjected to XRD analysis, thermogravimetric analysis (TG), and FTIR analysis. ...

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Mechanical and physical properties of synthetic sustainable …

A ground granulated blast furnace slag (GGBFS) is the highest aluminosilicate source material that was used in this study as a source precursor material to prepare geopolymer pastes. It was supplied by the Egyptian Iron and Steel Company, Helwan.

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Blast-furnace slag

Blast furnace slag (BFS) which is defined "as the non-metallic product consisting essentially of silicates and alumina silicates of calcium and other bases, that is developed in a molten condition simultaneously with iron in a blast furnace" by ASTM C 125-16 (2016) has been widely used in construction industry for more than 80 years. When the mixture of iron-ore, …

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Comparison of environmental performance of modern copper …

Matte with copper grade of 68% was produced from concentrate dried with steam dryer, granulated converter slag, silica and limestone with submerged lances smelting with using oxygen enriched process air with 300 kPa(g). Off-gas from the S-furnace was led via HRB and ESP to the ID fan. Elemental distribution to dust was set to be 2% and ...

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Drying shrinkage and microstructure characteristics of …

DOI: 10.1016/J.CONBUILDMAT.2015.05.103 Corpus ID: 136855848; Drying shrinkage and microstructure characteristics of mortar incorporating ground granulated blast furnace slag and shrinkage reducing admixture

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Slag Dryer

The slag dryer is the main equipment fordrying the slags with certain moisture. The equipment consists of the rotarybarrel, induced fan system, dispersing system, lifting blade, self-cleaningsystem, transmission system, conveying system, reducer, supporting system, andsealing system. Slag dryer All the parts are designed scie…See more on ftmmachinery

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Incorporating Limestone Powder and Ground Granulated Blast Furnace Slag

Similar trend was observed in case of drying shrinkage (Fig. 17a, b). At 28 day, the drying shrinkage was decreased by 35% and 32% for UHPC mixtures with and without GGBFS, respectively, with 20% LP dosage. Similarly, at 56-day, the drying shrinkage was decreased by 28% and 22% for UHPC mixtures with and without, respectively, with 20% LP dosage.

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Granulated Blast Furnace Slag

Effect of supplementary cementitious materials on properties of 3D printed conventional and alkali-activated concrete: A review. Mehrab Nodehi, ... Aliakbar Gholampour, in Automation in Construction, 2022. 2.3.1.1.1 Blast furnace slag. According to ASTM C989-18 [59], granulated blast furnace slag (GBFS) is defined as a glassy granular material formed when molten blast …

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Short-term experimental data of drying shrinkage of ground granulated …

This paper presents results of laboratory testing of unrestrained drying shrinkage during a period of 154 days of different concrete mixtures from the Brazilian production line that utilize ground granulated blast-furnace slag in their compositions. Three concrete mixtures with water/cement ratio of 0.78(M1), 0.41(M2), and 0.37(M3) were studied. The obtained …

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DRYING SHRINKAGE AND MICROSTRUCTURE …

drying shrinkage with microstructure formation as well. Based on this study, an equation that can predict reasonably the drying shrinkage in GGBFS-cement mortar is developed. 2. EXPERIMENTAL WORK 2.1 Materials and mix proportions of mortars Ground granulated blast furnace slag (GGBFS )

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Granulation and Heat Recovery from Metallurgical Slags

For example, it has been estimated that the use of 50% granulated BF slag in a cement mix reduces the CO 2 emissions from 1.2 to 0.54 t/t cement . If all the BF slag were directed to cement, ... It is claimed that 50–70% of the heat could be recovered and could be used for drying and preheating materials. However, the hot air may be at ...

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Influence of activator on the strength and drying shrinkage …

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 polypropylene …

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Performance evaluation of fly ash and ground granulated …

Nowadays, geopolymers, which are more environmentally friendly than cement due to the high energy requirements and high carbon dioxide (CO 2) emissions of cement production, emerge as alternative binders.In this study, the mechanical and durability properties of geopolymer concrete (GC) based on ground granulated blast furnace slag (GGBS) …

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Slag Dryer, Ore Powder Dryer, Quartzite Dryer, Copper …

As an advanced iron ore concentrate dryer supplier and tailings drying machine manufacturer, our company's dryers are especially able to process metal powders such as quartz stone, fluorite, …

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Effect of heat curing treatment on the drying shrinkage …

The effect of heat curing treatment that samples cured from room temperature to an elevated temperature of 60 °C for 24 h on the mass loss, drying shrinkage and microstructure of mortar incorporating ground granulated blast-furnace slag (GGBS) as cement replacement at 0%, 20%, 40% and 60% by weight was experimentally investigated in this study.

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Slag dryer machine|Steel slag dryer|Slag rotary dryer|Slag …

Slag dryer machine is widely used in building materials, metallurgy, mineral processing, chemical industry, cement industry, etc, and suitable for the material with high moisture and heavy …

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Mineral Slag Dryer

It is applicable for drying of mineral slag, limestone, clay, river sand, quartz and, grain slag, coal slurry, and slurry that is of heavy wetness, and big specific weight.

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Formulation of blast-furnace slag for use in hydraulically …

The dry processing of BFS has the additional benefits of reducing water consumption and pollution, as well as the high energy consumption required for the drying process of wet granulated slag. The cooling of 5 mm diameter slag droplets in a gas at temperatures between 773 and 973 K and velocities between 0.87 and 1.96 m/s results in the ...

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Strength properties of dredged soil at high water content …

Ground granulated blast furnace slag (GGBS) is a by-product of the manufacture of iron, and is produced in large amounts globally. As a latent hydraulic material, the effect of lime slag- and magnesia-activated GGBS on soil stabilization has been investigated, and the results show that the activated GGBS works better to improve the unconfined compressive strength …

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(642e) Dry Granulation of Blast Furnace Slag for Heat Recovery

The granulated slag particles can be discharged at the bottom of the granulator after each trial. Figure 4: Isometric drawing of the lab rig. The ... Without the need of an upstream drying system for the blast furnace slag energy and as in consequence CO 2 can be saved. In summary dry granulation of blast furnace slag allows an environmental

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An Experimental Study on the Carbonation and Drying …

The effect of ground granulated blast-furnace slag (GGBS) and alkaline activator on the properties of setting, compressive strength, drying shrinkage and resistance of carbonation was assessed to ...

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Dry Granulation of Blast Furnace Slag for Energy Recovery

Also there is the need of a proper water management on one hand and the necessity of the drying of the granulated BF slag on the other hand. So, not only the sensible heat of the liquid BF slag is lost, but it is also necessary to have an upstream slag drying unit for using the granulated BF slag in the cement industry. The drying process ...

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Early-age Cracking Control on Concrete with Ground Granulated …

Ground granulated blast furnace slag has been widely used in high performance concrete as a mineral admixture. The addition of ground granulated blast furnace slag can effectively improve the workability, long-term strength, and durability of concrete. ... Yuan JQ, Lindquist WD, Darwin D, et al. Effect of slag cement on drying shrinkage of ...

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(PDF) RECENT DEVELOPMENTS IN DRY SLAG …

and energy consumption (due to need for slag drying). As such, wet granulation is a . ... water granulated slag, and (3) 20% replacement of OPC with ground atomized slag. 210.

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Ground Granulated Blastfurnace Slag

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 ...

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(PDF) Air granulated basic Oxygen furnace (BOF) slag

Air granulated basic Oxygen furnace (BOF) slag application as a binder: Effect on strength, volumetric stability, hydration study, and environmental risk

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Tata Dureco | Ground Granulated Blast Furnace Slag

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 & resistance to ...

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Water Granulated Slag Dryer (DW-C2)

Company Introduction: Zhengzhou Taida Mining and Metallurgy Equipment Co., Ltd is an import&export joint-stock enterprise, producing mainly drying, mining, metallurgy and construction materials equipment and forming R&D, production and sales into an integral system. The headquater of the company is located in Hi-tech Development Zone, Zhengzhou, covering an …