(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. develops high heat of hydration 51.The phenomenon by virtue of which the cement does not undergo large change in volume when treated with water, is known as (a)Fineness dan anak perusahaannya PT Krakatau Posco. Liquid slag produced in a blast furnace (BF)is at a temperature of around 1500?C and has a sensible heat of around 400Mcal/ton. Additionally, the particle distribution curve of blast furnace slag sand and recycled coarse aggregate are presented in Figure3. A process and apparatus by which blast-furnace slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. Use of Blast Furnace Slag Aggregate in Concrete K.G. The fineness value of P.S.C, when tested by Blaine’s air permeability method, shall not be less than 225-280 m2/kg. Ordinary Portland Cement (OPC): It is the most widely used type of cement and can meet the major requirement for construction. compositions of cement and blast furnace slag sand are presented in Tables2and3. 2. Water required per bag of cement, is. In this article we discuss about the manufacture, constituents, properties, uses, advantages and disadvantages of Blast-furnace slag cement. The initial strength achieved is lesser than that of conventional concrete, but the higher ultimate strength gained is equal and sometimes higher that conventional concrete. 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. Granulated blast furnace slag has product codes commencing with 'GBF'. Test your knowledge about Civil Engineering – Concrete Technology by taking this Multi Choice Question (MCQ) quiz. Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. The procedure of removal of iron is the blast furnace. Tata Steel IBMD is one of the leading suppliers of GGBS and the product has been used in construction of many iconic structures in India. 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. Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. This may affect construction schedules which needs … FIRST AID MEASURES 4.1 Description of first aid measures Eyes If in eyes, hold eyelids apart and flush continuously with running water. 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). Different percentage of GGBFS is added for different type of construction. Become VIP Member, Do you need to remove the ads? 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. Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people. Different percentage of GGBFS is added for a different type of construction. Conclusion The substitution of natural aggregate with slag sand has positive impact on workability, compressive strength and durability. Granulated Blast Furnace Slag. Vicat's apparatus is used for. ... blast furnace slag cement. ash and Ground Granulated Blast Furnace slag cement (GGBFS) for R82 – lean mix concrete subbase , and also fly ash and/or GGBFS for R83 – Concrete Pavement Base , where reactive aggregates are used. PRODUCTION OF BOS SLAG. As the initial setting time is high, this cement is not used for emergency or repair works. The process of extraction of iron is blast furnace. Q.5. This morphology change provides the slag with its cementitious properties. 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. Lost your password? 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. The BOS (Basic … 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. At the present, most industrial slags are being used without taking full advantage of their properties or disposed rather than used. IDENTIFICATION OF THE MATERIAL AND SUPPLIER Product Name GRANULATED BLAST FURNACE SLAG Supplier Contact Cockburn Cement A.B.N.  Bougara A, Kadri EH, Ezziane K, Efficiency of granulated blast furnace slag replacement of cement according to the equivalent binder concept. They enhance concrete durability (chloride, sulphate and alkali silicate reaction resistance). finer grinding . 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). 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. It is a recovered industrial by-product of an iron blast furnace. Ground Granulated Blast Furnace Slag 65996-69-2 266-002-0 95-100% Gypsum 13397-24-5 603-783-2 <5% 4. The constituents of the GGBFS are as shown in the table below, Table 1: Constituents of the Ground Granulated Blast Furnace Slag. 8 Pick up the incorrect statement from the following: (A) Space between the exterior walls of a … Sorry, you do not have permission to ask a question, You must login to ask question. 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. A Portland cement mixed with a designated amount of ground granulated blast-furnace slag. Slag cement, often called ground granulated blast-furnace slag (GGBFS), is one of the most consistent cementitious materials used in concrete. The Following Section consists of Multiple Choice Questions on Concrete Technology. 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. But this leads to lower heat of hydration and thus lower temperature rise in the concrete. Molten slag is tapped from a blast furnace, rapidly quenched with water ("granulated"), dried and ground to a fine powder. Blast Furnace Slag can be processed into another form by Granulation. This product is marketed to the cement industry by ASMS as a cementitious material. 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. The production cost of this cement is less than the Ordinary Portland Cement (OPC). Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties. Q.4. Granulated Blast Furnace Slag For the blast furnace slag cement, the three types shown in Table 1 are specified in JIS R 5211: Blast Furnace Slag Cements”. Environmentally friendly and reduced greenhouse gas emissions . Get your score and actual answers at the end of this quiz. For constructions meant for water retaining such as rivers, retaining wall, harbors, tunnels for improvement in impenetrability. Ground granulated blast furnace slag (GGBFS) is designated in ASTM C 989 and consists mainly of silicates and aluminosilicates of calcium. Test your knowledge about Civil Engineering – Concrete Technology by taking this Multi Choice Question (MCQ) quiz. The efficiency, which the molten blast furnace slag is rapidly chilled, as well as the chemical composition of the slag source, largely determines its cementitious properties for use in concrete. While this is a new method of use in this country, the cementitious material is not new: it is an improved Portland blast-furnace slag cement. As per the requirement and product fineness can be as high as %... A lower carbon building material, it needs proper method for disposal we discuss about the,. Different applications road stabilisation stored and shipped to suppliers throughout the world [ 7 14.... 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