And we have an unrivalled product range which includes portland cement, white portland cement, ggbs and fly ash. Ggbs is therefore an environmentally friendly construction material. Research results confirming that the use of silica fume sf and ground granulated blast furnace slag ggbs with available material in sudan are adequate to produce high grade concrete. Effect of silica fume and ggbs on concrete properties. The concrete with ggbs has a better impermeability of water characteristics as well as it also helps in resistance to sulphate attack in the. Concrete made with ggbs cement sets more slowly than concrete made with ordinary. Ggbs ground granulated blastfurnace slag is used all over the world as a direct replacement for portland cement. High strength concrete incorporating ground granulated blast. V 2, ganapathy ramasamy 2 1assistant professor, department of civil engineering, srm university, chennai, india 2postgraduate, department of civil engineering, srm university, chennai, india received 17 june, 2017.
Physical properties of ground granulated blast furnace slag ggbfs ground granulated blast furnace slag have a color nearly white in appearance. Enhancing microstructure and durability of concrete from ground. Pdf strength and durability studies on ggbs concrete. Using one tonne of regen in concrete reduces the embodied co2 by around 900kg, compared to using one tonne of portland cement, and also increases its durability. Ground granulated blast furnace slag in concrete and its. Experimental analysis of partial replacement of cement by. With over 200 sites and more than 3900 dedicated employees, were home to everything from aggregates, asphalt, readymixed concrete and precast concrete products. Eco friendly concrete by using partial replacement of.
Durability properties and microstructure of ground. Portland cement is manufactured by grinding limestone or chalk with clay or shale, mixing the ground materials in specified proportions and then burning the material in a kiln to a temperature of about 1400c. Ground granulated blast furnace slag ggbs is a byproduct from the blast furnaces used to produce iron. Is ggbs a good partial replacement for cement in concrete mix. G student structural engineering 2professor 1,2department of civil engineering 1,2k. Ground granulated blastfurnace slag ggbs to bs 6699. This will help in reduced capillary pores and hence concrete will be of better durability.
Concrete made with ggbs cement sets more slowly than concrete made with ordinary portland cement, depending on the amount of ggbs in the cement mix, but also continues to gain strength over a longer period leading to improved overall durability and life expectancy. Instead of it leading to an increase in solid waste generation, this industrial byproduct can be managed properly and effectively by making use of. Eco friendly concrete by using partial replacement of cement. Partial replacement of cement with ggbs in self compacting concrete for sustainable construction j. If you are looking to buy it in bulk, ready to use or bagged cement, at.
Cement replacement material an overview sciencedirect topics. Regen is more sustainable than other cement substitutes such as fly ash. A typical combination is 50% ggbs with 50% portland cement, 4but percentages of ggbs anywhere between 20 and 80 % are commonly used. Scribd is the worlds largest social reading and publishing site. Blast furnace slag ggbs has been used as a supplementary material along with the cement.
Ggbs and it further decreases with increase of ggbs content in concrete k. Chemical composition of ggbs for concrete made with equal slump lower water content is required compared to ordinary portland cement. Murali krishnan2 1 assistant professor, 2 student, department of civil engineering mailam engineering college, mailam, villupuram district, tamil nadu 604 304. These days due to therapid development in offshore engineering marine. Ggbs, a cement replacement, manufactured from a byproduct of the ironmaking industry. Ground granulated blastfurnace slag ggbs is a green construction material used to produce durable concrete. Experimental study on concrete with partial replacement of. Experimental study on partial replacement of cement by. Feb 20, 2011 mix design using ggbs cement ggbs cement replaces ordinary portland cement on a one for one oneforone basis no change in any other element of the mix design. As a leading supplier of building materials, hanson uk offers a wide range of cement products, suitable for all different uses, from general purpose to waterproof, quick dry, premixed and ready mix cement. This is important interview question, i want correct answer for it. Another major hurdle of extensive use of ggbs concrete lies in the little source of supply of ggbs. After the molten iron is tapped off, the remaining molten slag, which consists of mainly siliceous and aluminous residue is then waterquenched rapidly, resulting in the formation of a glassy granulate. Can i add ggbs beyond the limit specified in is code.
From structural point of view, ggbs replacement enhances lower heat of hydration, higher durability and higher resistance to sulphate and chloride attack when compared with normal ordinary concrete. Self compacting concrete mixtures produced, tested and compared in terms of compressive,split tensile. Effects of combined usage of ggbs and fly ash on workability and. Strength and durability studies on lightweight fiber reinforced concrete by incorporating with palm oil shells. Iron ore, coke, and limestone are fed into the furnace and. Owing to our transparent traditions, we have presented our certificates of product testing and other important documents for our clients and interested parties. Pdf ground granulated blast furnace slag ggbs based. Although ggbs is a valuable mineral admixture for blended pc and concrete, only little quantity of the total available ggbs is used for this purpose. The normal ratios and proportions of aggregates and water to cementitious material in the mix remain unchanged. University, chennai, tamil nadu, india abstract the utilization of supplementary cementation materials is well accepted, since it leads to several possible. Experimental analysis of partial replacement of cement by ggbs and fly ash in concrte written by virendra desale, aarti kamble, palash borwal published on 20180530 download full article with reference data and citations. But little is known about interaction of ggbs based concrete. As per is codes what is the maximum ggbs content i can add into concrete as a replacement of cement.
The present study is an effort to gain strength of concrete by replacing ground granulated blast furnace slag ggbs that which is obtained from the molten steel is used as supplementary material for ordinary cement and. Ground granulated blast furnace slag ggbs or ggbfs and fly. Babu kg, kumar vsr 2000 efficiency of ggbs in concrete. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron. Effect of temperature on the modulus of elasticity of concrete at the age of 28. Geopolymer binder and recycled aggregates are considered as the two important sustainable ingredients in concrete production. Effect of cementitious waste material ggbs on concrete as a replacement in cement quaid joharbhattiwala kuldeep dabhekar m. The use of ggbs serves as a replacement to already depleting conventional building materials and also as being a byproduct it serves as an eco. As a result, the method to replace cement with highvolume of ggbs has generated considerable interest. Ground granulated blast furnace slag conclusion jsw cement. The normal ratios and proportions of aggregates and water to cementitious material in. Slag cement is manufactured as per bis specification is 455 1989 and quantity of slag added shall be in the range of 25%to70%. Chandrashekar a3 1pg student, dept of civil engineering, k v g college of engineering, sullia, india 2assistant professor, dept of civil engineering, k v g college of engineering, sullia, india 3hod, dept.
Ground granulated blast furnace slag has been constantly in use as cementitious replacement for sustainable infrastructure. Yes ggbs is a good partial replacement for cement in concrete mix. What is maximum content of ggbs in concrete mix design civil4m. All the mixes were studied at water cement ratio of 0. Ggbs blended with bentonite and cement mixtures to perpetrate as liner was studied. The top countries of suppliers are india, china, and vietnam, from which the percentage of ggbs cement supply is 4%, 88%, and 5% respectively. Two major uses of ggbs 2 are in the production of qualityimproved slag cement, namely portland blast furnace cement pbfc and highslag blastfurnace cement hsbfc, with ggbs content ranging typically from 30 to 70% and in the production of readymixed or sitebatched durable concrete. An experimental study on partial replacement of cement by ggbs and natural sand by quarry sand in concrete chaithra h l1, pramod k2, dr. Ground granulated blast furnace slag ggbs or ggbfs and. Introduction the blast furnace slag is a byproduct of the iron manufacturing industry. Ordinary portland cement, 53 grade shall comply with the physical requirements given in table 3. Ground granulated blast furnace slag ggbs based concrete. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing.
Pdf using ggbs for partial cement replacement in concrete. Pdf ground granulated blast furnace slag ggbs is a waste material generated from iron production, and is one of the. Ordinary portland cement, micro silica, ground granulated blast furnace slag ggbs, compressive strength. However, some concerns regarding its performance in freezing environments have been raised. Cement is the most important material of the concrete which produced by natural raw material like silica and lime over consumption of lime may lead to the condition there will be no lime production of cement for concrete. Pdf studies on optimum usage of ggbs in concrete raja. Indian standard ordinary portland cement, 53 grade. As hong kong is not a major producer of steel, ggbs as a byproduct of steel has to be imported overseas and this introduces higher material cost due to transportation and the supply of ggbs. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them.
Ground granulated blast furnace slag ggbs jsw cement. Introduction now a day the world is witnessing the construction of very. Teja4 investigated the concept of triple blending of cement with ggbs and flyash, this triple blend cement exploits the beneficial characteristics of both pozzolanic materials in producing a better concrete. Strength development characteristics of concrete produced. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. A wide variety of ggbs cement options are available to you, there are 202 suppliers who sells ggbs cement on, mainly located in asia.
What is the advantage of using ggbs as replacement of cement. Cement is use as a binder material in conventional concrete. A free powerpoint ppt presentation displayed as a flash slide show on id. Water in ggbs concrete takes slightly longer to combine chemically to form hydration products, thus making ggbs concrete a little more sensitive to poor curing. Where the cement or combination contains proportions of additions, such as fly ash in excess of around 20% or ggbs in excess of around 50%, then this also influences the 28day ceiling strength. Effects of the addition on the frost scaling resistance and chloride migration vera monica ferreira correia 2 therefore, airentrained concrete mixes with an equivalent water cement ratio of 0.
An investigation on portland cement replaced by highvolume. But little is known about interaction of ggbs based concrete with marine. What is the advantage of using ggbs as replacement of. Ggbs concrete strength, ggbs give sustainable gain and strength 30% of ggbs strength decrease compared with control of concrete. Durability of mortars containing ground granulated. The shrinkage ratios of pure cement hpc and ggbs hpc with pce were 2. But little is known about interaction of ggbs based concrete with marine environment. This paper presents the use of ggbs ground granulated blast furnace slag an industrial byproduct, blended with. Effect of cementitious waste material ggbs on concrete as a. Pdf soft soil stabilisation using ground granulated blast.
Ggbs concrete ggbs proportions on its own, ground granulated blast furnace slag ggbs hardens very slowly and, for use in concrete, it needs to be activated by combining it with portland cement. On top of that, we produce, import and export supply materials for cement and offer national road surfacing and contracting services. Earlyage strength of ggbs concrete is lower than the normal pc concrete which limits its use in the. For ggbs contents of up to 60%, curing periods as recommended in is 326 and bs 8110 for portland cement concretes are sufficient. High strength concrete incorporating ground granulated. Granulated blast furnace slag is obtained by rapidly chilling quenching the molten ash from the furnace with the help of water. Pdf concrete is the most used construction material in the civil engineering. Arivalagan 1 professor and hod, department of civil engineering, educational and research institute, dr. After iterative trial mixes the water cement ratio wc was selected as 0. It is added to the concrete mixer along with ordinary cement, aggregates and water. During this process, the slag gets fragmented and transformed into amorphous granules glass, meeting the requirement of is 12089.
Influence of micro silica and ggbs on compressive strength of. Ggbs concrete has better water impermeability characteristics as well as improved resistance to. The replacement of portland cement with ggbs will lead to significant reduction of carbon dioxide gas emission. It improves the quality and durability of concrete. Test certificates cement distributors cement prices. Ggbs is very useful in the design and development of highquality cement pastemortar and concrete. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to.
Higher ggbs levels in the concrete resulted in the higher apparent activation energies. Regen ground granulated blast furnace slag ggbs is a cement substitute, manufactured from a byproduct of the ironmaking industry. Greening effect in slag cement materials sciencedirect. Properties of concrete with ground granulated blast furnace. Properties of concrete with ground granulated blast. Ggbs is one of these supplementary materials used to replace with cement to reduce the consumption of the cement. Use of ground granulated blast furnace slag blended with bentonite. This may be because it may take two months or why the bs 8500 durability tables are the way they are. Sustainable studies on concrete with ggbs as a replacement. The secondary pozzolanic reactions can result in reduced pore connectivity.
Final setting time min 265 the granulated slag is extracted from the process of pig iron production, where the molten slag is quenched with cold water, producing glassy granulates. Partial replacement of cement with ggbs in concrete, international journal of advance research, ideas and innovations in technology, apa chalamcharla venu gopal, suresh. It can be used to replace as much as 80% of the portland cement when used in concrete. Concrete containg ggbs cement has a higher ultimate strength than concrete made with portland cement. Ppt fibre reinforced concrete powerpoint presentation. Ground granulated blastfurnaceslag ggbs is a solid waste produced during the manufacture of iron. N engineering college, gulbarga, karnataka, india abstract this paper presents a. Modulus of elasticity of matrix must be much lower than that of fibre. This glassy granulate is dried and ground to the required size, which is known as ground granulated blast furnace slag ggbs. Tech scholar professor department of civil engineering department of civil engineering g. Ground granulated blast furnace slag ggbs is byproduct from the blastfurnaces of iron and steel industries. From the above two differences in composition compared with the portland cement, would show changes in the hydration reaction as well as the hydration products that are given ggbfs. Ground granulated blastfurnace slag ggbs is a cementitious material for use as part replacement of cement opc.
Soft soil stabilisation using ground granulated blast furnace slag. Why the bs 8500 durability tables are the way they are. Ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete. The effect of cementitious waste material ggbs as cement in concrete give more compressive. There are many examples of using the ggbs concrete in the. May 26, 2016 after the molten iron is tapped off, the remaining molten slag, which consists of mainly siliceous and aluminous residue is then waterquenched rapidly, resulting in the formation of a glassy granulate. The type of cement used in concrete foundations is determined by the concentration of sulphates in the groundwater. Partial replacement of cement with ggbs in self compacting. Ecocem ireland is an irish company specialising in the manufacturing of high performance cements, using the best technology for environmental performance. Cement react chemically with ggbs and hydrates and sets in a manner similar to portland cement. On the other hand, it also contributes to environmental protection because it minimizes the use of cement during the production of concrete. Is ggbs a good partial replacement for cement in concrete. Experimental study on partial replacement of cement by flyash and ggbs syed asif ali1 professor shaik abdullah2 1p.
What is maximum content of ggbs in concrete mix design. Very occasionally, it can be found up to a ratio of 90% ggbs and 10% pc. This greening effect demonstrates a progressive oxidation of sulfidebased compounds initially contained in these materials during curing of ggbs bearing. The production of ggbs requires less additional energy as compared with the energy needed for the production of portland cement.
Properties of concrete containing ground granulated blast. An experimental study on partial replacement of cement by. Properties of concrete containing ground granulated blast furnace slag ggbfs at elevated temperatures. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron slag a byproduct of iron and steelmaking from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder. Sustainable studies on concrete with ggbs as a replacement material in cement s. Partial replacement of cement with ggbs in concrete. Influence of micro silica and ggbs on compressive strength.
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