Application of Blast Furnace Slag Sand in Cement Concrete–A Case Study 457 4. Ground granulated blast-furnace slag (GGBFS) Our slag cement CEMSlag TM is a hydraulic cement material created when granulated blast-furnace slag from the steel manufacturing process is ground to a fineness suited for concrete production. Grinding of cement and/or granulated blast-furnace slag – Material separation in the filter. When the iron is processed using a blast furnace, slag and iron both collect at the bottom of the furnace.The molten slag must first be separated from the molten iron. The process involves cooling of the slag through high-pressure water jets, this leads to formation of granular particles. The concretes that contain blast furnace slag cement have less permeability, low hydration heat, better operability and processability, higher strength, and higher resistance to hazardous chemicals and hazardous attacks in many forms as compared to the common concrete. You will receive a link and will create a new password via email. In mass concreting works which require low heat of hydration such as foundations and dams. Q.5. Slag. Ground Granulated Blast Furnace Slag (GGBS) The importance of Ground Granulated Blast Furnace Slag (GGBS) lies in its greener way to become a substitute in concrete material. Slag is primarily composed of CaO, SiO 2, aluminum oxide (Al 2 O 3), and magnesium oxide (MgO). Test your knowledge about Civil Engineering – Concrete Technology by taking this Multi Choice Question (MCQ) quiz. Fig 1: Extraction of molten Slag from Blast Furnace. Become VIP Member, Do you need to remove the ads? The slag that is obtained on the iron ore is separated and cooled down slowly, which results in the formation of nonreactive crystalline material. the first method blast furnace slag is interground with cement clinker along with gypsum.In the second method blast furnace slag is separately ground and then mixed with the cement. Environmentally friendly and reduced greenhouse gas emissions. VIP members get additional benefits. Fig 3: Use of Slag cement in Canal Lining. blended cement (Type GB), must conform to AS 3972. Granulated Blast Furnace Slag Status: Approved Dept: Sales & Marketing Revision : 21 November 2016 Page 1 of 6 1. Moist feed materials can be fed to the mill separately from warm and dry feed materials. Materials 2019, 12, x FOR PEER REVIEW 2 of 12 against chloride ion diffusion is improved [6]. 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. Use of Blast Furnace Slag Aggregate in Concrete K.G. Due to slow hydration process, the slump retention and initial setting time is more. As the initial setting time is high, this cement is not used for emergency or repair works. Q.5. This process leads to a glassy, granular product that is then dried and ground into a fine powder. 11. Greater durability and reduced permeability due to fineness. It has good persistence towards sulfate and chloride assault and even less risk of alkali-silica response with aggregates. GBS and HSC Portland cement blends are made by blending Portland Cement and Ground Granulated Blast Furnace Slag (25% Slag blend -GBS and 60% Slag blend - HSC). Ground Granulated Blast Furnace Slag (GGBFS) is a fine glassy granule which encompasses cementitious possessions. [3] Bougara A, Kadri EH, Ezziane K, Efficiency of granulated blast furnace slag replacement of cement according to the equivalent binder concept. Blast furnace slag cement [A]. Ground-granulated blast-furnace slag (GGBFS) is produced by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water, to produce a granular product that is then dried and ground into a fine powder. Blast Furnace Slag (BFS) cement is the combination of Ordinary Portland Cement (OPC) and fine Granulated Blast Furnace Slag (GBFS) gained as a byproduct in the steel making manufacturer with below 70% to that of cement. As the slag is finely grounded, it has the valence to fill the pores efficiently, workability is high and bleeding is low. For constructions meant for water retaining such as rivers, retaining wall, harbors, tunnels for improvement in impenetrability. Due to this property, this type of cement can be used where the problem of thermal cracking is foreseen. Cement and Concrete Research 2010; 40:971-983. Blast Furnace Slag (BFS) cement is the combination of Ordinary Portland Cement (OPC) and fine Granulated Blast Furnace Slag (GBFS) gained as a byproduct in the steel making manufacturer with below 70% to that of cement. GGBFS has less embodied … It is often referred to as Neat Milled Slag (NMS). Early Strength is low; therefore, it cannot be used in Reinforced Cement Concrete (RCC) works. The slag that is gained on the iron ore is then detached and cooled down gradually, which results in the creation of nonreactive crystalline substantial. 1. Granulated blast furnace slag Just like air-cooled blast furnace slag, this slag has a hydraulic property and there is no risk of alkali-aggregate reaction. Slag from blast furnace contains (a) alumina (b) lime (c) silica (d) all these. Because of the powerful latent hydraulic property that results from fine grinding, this slag is used in products such as Portland blast furnace slag cement. GGBFS is divided into three classifications based on its activity index. Choose the correct answer from the following MCQ. Making cement is energy intensive, generating up to 176 kg CO 2 for each tonne of concrete manufactured. Blast Furnace Slag About Arij With a decade of international business experience and maintaining universal trade relation with three continents, our group gathered under the name of Arij Global Trading to supply our esteemed customers Grade-A quality of different mineral products. Grade 80 has a low activity index and is used primarily in mass structures because it generates less heat than portland cement. 2. Used in the places susceptible to chloride and sulphate attacks such as sub-structure, bored piles, pre-case piles and marine structures. All Rights Reserved. Product quality and product fineness can be adjusted within a wide range (up to 6000 cm2/g Blaine). Table 2: Proportion of slag percentage for different applications. Slag cement, often called ground granulated blast-furnace slag (GGBFS), is one of the most consistent cementitious materials used in concrete. Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. The concrete made with Ground Granulated Blast Furnace Slag cement sets more slowly compared to ordinary Portland cement concrete based on the amount of GGBS in the cementations material. As the initial setting time is high, this cement is not used for emergency or repair works. The company says that it will use Suez Cement’s CEM III/A ground granulated blast furnace slag (GGBFS) cement to produce concrete for the 96km monorail network. Blast Furnace Slag can be processed into another form by Granulation. Additional highlights from the Granulated Blast-Furnace Slag Industry market report: Based on product gamut, the Granulated Blast-Furnace Slag Industry market is bifurcated into Alkalinity Blast-Furnace Slag andAcidic Blast-Furnace Slag. IDENTIFICATION OF THE MATERIAL AND SUPPLIER Product Name GRANULATED BLAST FURNACE SLAG Supplier Contact Cockburn Cement A.B.N. Concrete properties can be improved using Fine Blast Furnace Slag (BFS). Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. Blended cements may comprise a mix of general or special purpose cement, and one or more of the following: fly ash, ground granulated iron blast-furnace slag, and amorphous silica. Portland Pozzolana Cement (PPC): It is as same as OPC but the addition of one of the major constituent gives its name i.e. The advantages of this blast furnace slag cement, such as increasing strength over long periods of time, low heating speed when reacting with water, and high chemical durability, are put to effective use in a broad range of fields including in the construction of ports and harbors and other large civil engineering works. Applications In the places vulnerable to attacks of chloride and sulfate such as sub-structure and marine structures. GROUND GRANULATED BLAST FURNACE SLAG Status: Approved Dept: Sales & Marketing Revision: 1.0 Issued: 22nd October 2020 Supersedes: N/A Page 1 of 2 PRODUCT DESCRIPTION Cockburn Cement markets Ground Granulated Blast Furnace Slag (GGBFS). It is actually a byproduct of iron production. C. Water required per bag of cement, is. Used for structures meant for water retaining such as retaining wall, rivers, ports, tunnels for improvement in impermeability. FIRST AID MEASURES 4.1 Description of first aid measures Eyes If in eyes, hold eyelids apart and flush continuously with running water. blast-furnace slag cement. As the colour of GGBFS is white, the cement colour obtained is lighter coloured when compared to conventional cement. Additionally, the particle distribution curve of blast furnace slag sand and recycled coarse aggregate are presented in Figure3. the hydration process if slag is an exothermic process, thus the generation of heat of hydration is slow. The company says that it will use Suez Cement’s CEM III/A ground granulated blast furnace slag (GGBFS) cement to produce concrete for the 96km monorail network. Blast Furnace Slag Cement; Air Entraining Cement; Hydrographic cement; 1. Once the slag has been cooled and ground to a usable fineness it is stored and shipped to suppliers throughout the united states. HSC cement is also widely used in road stabilisation. It is a recovered industrial by-product of an iron blast furnace. Ground granulated blast-furnace slag, more commonly referred to as slag or slag cement, is a by-product of steel production. Portland Slag Cement (P.S.C) Portland slag cement is obtained by mixing Portland cement clinker, gypsum and granulated blast furnace slag in suitable proportions and grinding the mixture to get a thorough and intimate mixture between the constituents.. 1. develops low heat of hydration [B]. Lost your password? Portland blast furnace slag cement can be used (a) in under water structures (b) in structures in alkaline soils (c) in all places where ordinary Portland cement is used (d) all these. A Portland cement mixed with a designated amount of ground granulated blast-furnace slag. For more information call 1300 CEMENT (1300 236 368) or visit www.cementaustralia.com.au SAFETY DATA SHEET Ground Granulated Blast Furnace Slag Section 1: Identification of the Material and Supplier Company Details Cement Australia Pty Limited ABN 75 104 053 474 18 Station Avenue Darra, Queensland 4076 Tel: 1300 CEMENT (1300 236 368) Fax: 1800 CEMENT (1800 236 368) Website: … 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. S GGBFS is manufactured by the grinding of dried granulated iron blast furnace slag (a by … © 2009-2020 The Constructor. In addition, recent research has examined its performance throughout the world [7 14]. Francis Flower recycles blast furnace slag from the steel industry for production of ground granulated blast furnace slag for use in cement production, among other offerings for industrial and agricultural use. For road pavements, the cement generally used, is (A) Ordinary Portland cement (B) Rapid hardening cement (C) Low heat cement (D) Blast furnace slag cement. Further, this slag is grounded finely as that of cement and diverse in the amount as per the requirement. (a)The cement does not undergo large change in volume when treated with water (b)The plastic cement paste changes into hard mass (c)The cement paste sets and develops strength (Ans) (d)None of the above. Slag is primarily composed of CaO, SiO 2, aluminum oxide (Al 2 O 3), and magnesium oxide (MgO). And its percentage ranges between 10% to 30%. 14 Kg. After the granulated blast furnace slag is formed, it must be dewatered, dried and ground, using processes similar to those used with Portland cement clinker to make Portland cement. In this article we discuss about the manufacture, constituents, properties, uses, advantages and disadvantages of Blast-furnace slag cement. Conclusion The substitution of natural aggregate with slag sand has positive impact on workability, compressive strength and durability. The process of extraction of iron is blast furnace. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties. The beneficial effect of blast furnace slag on the alkali silicate reaction was reported in [44], and the effect has two parts: First, blast furnace slag cement has a denser pore structure than Portland cement, and this hampers different transport processes needed for alkali silica reaction. 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