Country 14 Kg. 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. Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Slag from blast furnace contains (a) alumina (b) lime (c) silica (d) all these. 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). 8 Pick up the incorrect statement from the following: (A) Space between the exterior walls of a … VIP members get additional benefits. Used in mass concreting works such as dams, foundations which require low heat of hydration. increased lime cement. Fig 1: Extraction of molten Slag from Blast Furnace. develops high heat of hydration GGBFS is gained as a derivative in the removal of iron from its ore. It is also a kind of cement that helps save resources and en- ergy. Concrete properties can be improved using Fine Blast Furnace Slag (BFS). Hiraskar and Chetan Patil Abstract-The Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement. A Portland cement mixed with a designated amount of ground granulated blast-furnace slag. 21 Kg. The beneficial effect of blast furnace slag on the alkali silicate reaction was reported in , 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. Molten slag diverted from the iron blast furnace is rapidly chilled, producing glassy granules that yield desired reactive cementitious characteristics when ground into cement fineness. As the colour of GGBFS is white, the cement colour obtained is lighter coloured when compared to conventional cement. The blast furnace slag cement is used in the world in order to increase the strength of the concrete and reduce the costs. Materials 2019, 12, x FOR PEER REVIEW 2 of 12 against chloride ion diffusion is improved . P.O. © 2009-2020 The Constructor. The production cost this cement is less when compared to OPC. It has good resistance towards sulphate and chloride attack and even less risk of alkali-silica reaction with aggregates. 8 Pick up the incorrect statement from the following: (A) Space between the exterior walls of a … Slag from blast furnace contains (a) alumina (b) lime (c) silica (d) all these. C. GGBS being a waste material, it needs proper method for disposal. Used for structures meant for water retaining such as retaining wall, rivers, ports, tunnels for improvement in impermeability. Fig 2: Use of Slag cement in Sulphate and Chloride attack places. Portland Pozzolana Cement (PPC): It is as same as OPC but the addition of one of the major constituent gives its name i.e. 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. Application of Blast Furnace Slag Sand in Cement Concrete–A Case Study 457 4. 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. VIP members get additional benefits. Different percentage of GGBFS is added for different type of construction. In this article we discuss about the manufacture, constituents, properties, uses, advantages and disadvantages of 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. Blast Furnace Slag Cement (Application, Pros & Cons). blast-furnace slag cement. 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 NewCem® Slag Cement Advantage blast-furnace slag cement. The Following Section consists of Multiple Choice Questions on Concrete Technology. 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