Ground granulated blast furnace 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. Ggbs is used in combination with portland cement to produce superior longer lasting concrete. Advanced construction technology, 4th edition pdf free. When ironore, coke and limestone melt in the blast furnace, two products are producedmolten iron, and molten slag. Some engineering properties of slag concrete as in. Online index of pre blast inspection companies that are active in the commercial construction industry, ground granulated blast furnace slag aluminium slag making machine ivory coast mozambique south africa, blast furnace slag crusher and grinding machine is also widely, blast furnace slag machine,recycle granulated slag.
This applies to all cement, ground granulated blast furnace slag ggbfs, and blended cement sold to contractors for use. Ggbfs is limited to cement replacement rate of 25% by weight and fly ash is limited to a cement replacement rate of 20% by weight. Blast furnace slag cementsfly ash reference properties. Blast furnance slag user guideline portland cement. Wainwright pj, rey n 2000 the influence of ground granulated blast furnace slag ggbs additions and time delay on the bleeding of concrete. Pdf utilization of ground granulated blast furnace slag as. Yet its many advantages in producing sustainable, highquality concrete remain underappreciated and underused. It is a nonmetallic product, consisting of silicates and aluminosilicates of.
Ground granulated blast furnace slag ggbfs is a byproduct obtained from the iron making process and has suitable properties to be utilized as high volume cement replacement to produce. Furnace slag and its nature is studied in this project in the present paper, a. Properties of granulated blastfurnace slag cement concrete. Gopinath3 1,2,final year student, department of civil engineering, sathyabama university, chennai, india.
Use of the cementatious properties of ground granulated blast furnace ggbf slag was reported as early as 1774. Ground granulated 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. Molten slag diverted from the iron blast furnace is rapidly chilled producing glassy granules that yield. Safety data sheet ground granulated blast furnace slag. However, by 14 days, the grade 120 slag cement concrete strength equaled or surpassed that of opc concrete. Ground granulated blast furnace slag ggbs is a byproduct from the blast furnaces used to make iron. Effects of ground granulated blast furnace slag in. Ingredients name cas proportion calcium oxide 5788 3060 % silicon dioxide 7631869 3060 % aluminium oxide 44281 1030 % magnesium oxide 9484 110 %. When this liquid bf slag is cooled fast enough then the solidified slag has a large percentage of glassy phase with high cementations activity and hence it can be used.
The slag shall contain no additions and shall conform to the sulfide sulfur and sulfate chemical composition requirement. Blast furnace slag is a byproduct of iron manufacturing, via thermochemical reduction, in a blast furnace. The use of ggbfs as a constituent of concrete was first recorded in 1905. Ground granulated blastfurnace slag for concrete jis a 6206. Wo2017085565a2 portland cement free activation of ground.
Processing of granulated blast furnace slag and its. Abstract ground granulated blastfurnace slag ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete. Surface chemistry of ground granulated blast furnace slag. The slag content in cement is 50, 60, 70, and 80 percent. Blast furnaces are fed with controlled mixture of ironore, coke and limestone, and operated. Cement is partially replaced by ground granulated blast. Evaluation of grade 120 granulated ground blast furnace slag. The most common process is quenching with water, but air or a combination of air and water may be used. The cyclone furnace process is characterised by high treatment rates combined with continuous and independent operation.
Laboratory test programmes have been carried out to assess the sulphate resistance of various portland and portland blast furnace slag cements and of portland cements blended with ground granulated blast furnace slag slag. 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. Minnesota department of transportation certified cement. The shrinkswell property obtains clayey soils as inappropriate material for direct utilisation in construction. Pdf fresh and hardened properties of ground granulated. The test method was based upon the german flat prism test. Slag cement, ground granulated blast furnace slag ggbfs, granulated blast furnace slag gbfs, slag product form. Activation of ground granulated blast furnace slag by. 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. A wide variety of ground granulated blast furnace slag options are available to you. Design of selfcompacting concrete with ground granulated blast furnace slag. Slag cement granulated blast furnace slag 11 benefits of the concretes produced with blast furnace slag cement hydration the reaction between blast furnace slag cement and water is a complicated process. Properties of hardened concrete with blast furnace slag ggbfs the physical properties of ground granulated blast furnace slag ggbfs provides advantages to the concrete in fresh state as well as in its hardened state.
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. The use of ggbfs in portland cement is governed by aashto m302. Slag cement benefits and use in concrete slag cement news. Experimental behavior of reinforced concrete with partial.
The use o ground granulated blast furnace ggbf sl ag in the production of blended cements b egan in 1905 in the united states. Pdf experimental analysis of nondestructive testing. Slag substitution as a cementing material in concrete mdpi. In this study, moderate heat portland cement, in which the fineness is 300 mkg, and granulated blast furnace slag, in which the fineness is 300, 400, 500, and 600 mkg, were made. Standardization of iron and steel slag products nippon steel. Ground granulated blast furnace slag ggbs lafarge emirates ggbs is a premium quality, supplementary cementitious material that can be combined with cement to produce concrete having several advantages namely reduced heat evolution, enhanced durability, better workability, delayed setting, etc.
Ferroform has the same strength and durability as concrete. Ground granulated blast furnace slag ggbs1 is a by product from the blast furnaces used to make iron. Pdf effects of ground granulated blast furnace slag. Usage of industrial waste such as fly ash and ground granulated blast furnace slag have become the epicenter of curbing the use of cement, one of the major contributors of greenhouse gases. Blast furnaces normally generate 250 to 350 kg of liquid slag for every ton of hot metal produced. 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. Heavy metals can be serious pollutants of natural water bodies causing health risks to humans and aquatic organisms. Recent attention has been given to the use of ggbf slag as a sepa rate cementitious constituent of concrete. Hiraskar and chetan patil abstractthe iron industries produce a huge quantity of blast furnace slag as byproduct, which is a nonbiodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement. Ground granulated blastfurnace slag cement ggbs, a byproduct in steel manufacture, has been used to improve concrete strength.
It is generally recognized that the cementitious action of a slag is dependent on the glass content, although its only one of many factors which will have influence. The purpose of this study was to investigate the removal of five heavy metals from water by adsorption onto an iron industry blast furnace slag waste point of zero charge pzc ph 6. Montreal qc, spragge on, south chicago il, stoney creek on. Ggbs is an acronym for ground granulated blast furnace slag, a byproduct from the manufacture of iron. Minnesota department of transportation mndot will only accept cementitious materials from the mndot certified sources list. This glassy granulate is dried and ground to the required size, which is known as ground granulated blast furnace slag ggbs.
The ground granulated blast furnace slag ggbfs is a waste of industrial material. Ground granulated blast furnace ggbf slag used in concrete. It improves the quality and durability of concrete, and its production is virtually co 2free. Granulated blast furnace slag export data of hs code 26180000. Sulfate resistance of combinations of portland cement and. In order to explore the difference of the activation effect on the ground granulated blast furnace slag ggbfs subjected to variant activators as wel. Portland cement free activation of ground granulated blast furnace slag download pdf. While substitution of ground granulated blast furnace slag for up to 70% of the portland cement in a mix has been used, there appears to be an optimum substitution percentage that produces the greatest 28day strength. In a world with increased demand for sustainable construction, waste product of one industry could be a boon to the other in reducing the carbon footprint. Granulated blast furnace slag 90% 65996692 gypsum caso 4 2h 2 0 25% 10101414 section 4. Ground granulated blast furnace slag 71112 following is a list of slag cement suppliers approved to supply the indicated brand of ggbfs to department work in accordance with the current provisions of both ground granulated blast furnace slag 71112, and materials method 10. Ground granulated blastfurnace slag ggbsslag lafarge in. This is typically 50% of the total cementitious material but depends on the grade of ground granulated blast furnace slag used. Adsorptive removal of five heavy metals from water using.
Properties and uses of iron and steel slag mf 1826 national slag association. But little is known about interaction of ggbs based concrete with marine environment. Strength properties of sisal fiber concrete with 30%. Introduction since granulation of lead blast furnace slag started at. The development of compressive strength of ground granulated blast furnace slag palm oil fuel ashfly ash based geopolymer mortar. Abstract ground granulated blast furnace slag ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete. These days due to therapid development in offshore engineering marine environment and its simulation has come under limelight. Till seventies blast furnace bf slag was considered a waste product and was being dumped at a convenient place away from the blast furnace. Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than 4. Properties of concrete with ground granulated blast furnace. Granulated blast furnace slag is considered a hazardous material according to the criteria specified in reach regulation ec no 19072006 and clp regulation ec no 12722008 and osha 29 cfr 1910.
It is a recovered industrial byproduct of an iron blast furnace. Blast furnace slag material description user guidelines. This involves the activation of the slag with alkalis and sulphates in order to form its hydration product. Clayey soils are problematic due to the reactions of their minerals, which gives them an exhibition of shrinkswell properties. Continue flushing until advised to stop by a poisons information centre, a doctor, or for at least 15 minutes. It is relatively more recent pozzolanic material that has received considerable attention in both research and. Properties of hardened concrete with blast furnace slag. Ground granulated blast furnace slag is used as an additive with portland cement in. Aggregates are used for all types of base and subbase construction.
Soft soil stabilisation using ground granulated blast furnace slag conference paper pdf available may 2017 with 2,723 reads how we measure reads. Supplementary cementing material, ground granulated blastfurnace slag, type s, meeting the requirements of csa a3001 and csa a3004, from the following plants. It is non metallic and consists essentially of s ilicates and aluminosilicates of calcium and other bases developed in a molten form with iron in a blast furnace. View detailed export data, price, monthly trends, major exporting countries, major ports of granulated blast furnace slag export data and price of granulated blast furnace slag zauba skip to main content. Ground granulated blast furnace slag ggbs chemical. This material is manufactured to comply with the requirement of bs 6699. Ground granulated blast furnace slag ggbs based concrete. Ground granulated blast furnace slag and fly ash in. Page 5 granulated blast furnace slag is produced by quickly quenching chilling molten slag to produce a glassy, granular product. This molten slag is at around 1400 1550 deg c temperature. Preferably, the slag is present in an amount ranging from 80 to 90% by weight of the composition.
Properties of concrete with ground granulated blast. Results were sufficiently encouraging to warrant pilot plant scale trials being undertaken. Granulated blast furnace slag gbfs from primary steel making processes. Dry granulation of blast furnace slag steel360 news. Granulated shaped blast furnace slag is most suitable for increasing the strength of the soil and for this we check the following property of soil. So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine. View details of granulated blast furnace slag exports shipment data of hs code 26180000 with price, date, major indian port, countries, exporters, supplier, quantity and more.
Ggbs being a waste material, it needs proper method for disposal. Environmentfriendly block, ferroform, made from steel slag. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. Properties of hardened concrete with blast furnace slag ggbfs the physical properties of ground granulated blast furnace slag ggbfs provides advantages to the. Ground granulated blast furnace slag ggbfs has been used for many years as a supplementary cementitious material in portland cement concrete, either as a mineral admixture or as a component of blended cement. Standard specification for slag cement for use in concrete. Ground granulated blast furnace slag in concrete and its. Comparing properties of concrete containing electric arc furnace. Studying the hydration of a retarded suspension of ground. Properties of blastfurnace slag cement concrete subjected to. It consists primarily of oxides of calcium, silicon, aluminium and magnesium. Behaviour of ground granulated blast furnace slag concrete in.
Ground granulated blast furnace slag exporter, ground. It was determined that concrete containing 30% and 50% replacement of ordinary portland cement opc with grade 120 slag cement had a decreased initial compressive and tensile strength compared to opc concrete. These operate at a temperature of about 1500 degrees centigrade and are fed with a carefully controlled mixture of iron ore, coke and limestone. Ground granulated blastfurnace slag ggbfs, sometimes simply referred to as slag, is a glassy granular material formed when molten blastfurnace slag is rapidly chilled, as by immersion in water. Ground granulated blast furnace slag has been constantly in use as cementitious replacement for sustainable infrastructure. Export data and price of granulated blast furnace slag zauba. Properties of concrete incorporating fly ash and ground. Ggbs are added from 0% to 25% by dry weight of soil, first of all check the all soil property at 0 % no ggbs and then compare after addition of ggbs from 5% to 25%. This glassy granulate is dried and ground to the required size, which is known as ground granulated blast furnace slag ggbfs. Experimental behavior of reinforced concrete with partial replacement of cement with ground granulated blast furnace slag m.
Blast furnace slag is nonreactive in a high alkali environment, such as concrete and soils. Blast furnace slag is formed in a continuous process by melting lime andor dolomite, the waste from carbon sources and nonmetallic components of iron load e. Microstructural evolution and characterization of ground. Ground granulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Ground granulated blast furnace slag is molten slaga byprod uct of the blast furnace ironmaking processwhich is watercooled rapidly, dried, and ground. Slag cement is often referred to as ground granulated blastfurnace slag ggbfs. Ground granulated blast furnace slag is highly cementitious and high in csh calcium. Design of selfcompacting concrete with ground granulated. Bf slag is rich in cao, sio2, al2o3, and mgo which are similar to the components of portland cement. In addition to applications requiring graded aggregates, pit run blast furnace slag is extensively used for subbase. Pdf the development of compressive strength of ground.
Liquid slag produced in a blast furnace bfis at a temperature of around 1500. Granulated slag obtained from blast furnace slag is wet and coarse in nature and can not be useful directly. Surface chemistry of ground granulated blast furnace slag in cement pore solution and its impact on the effectiveness of polycarboxylate superplasticizers. As an alternative material for lowheat cement, granulated blast furnace slag can be considered. Effects of ground granulated blast furnace slag in portland. Ground granulated blast furnace slag ggbs slideshare. The molten slag consists of mainly siliceous and aluminous residue. Blast furnace slag granulation at cast house ispatguru. Certified cement, granulated blast furnace slag, and blended cement program.
Normally ball mill is used to make it fine in nature. Dec 17, 2015 ground granulated blast furnace slag is obtained by quenching molten iron slag from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a. Laboratory scale equipment was developed to recover zinc as oxide fume from granulated lead blast furnace slag. Soft soil stabilisation using ground granulated blast. Blast furnace slag concrete can be reliably pumped when the slag is supplied to the readymix production in a saturated condition.
Geopolymer concrete is produced by reacting with high rich aluminate and silicate. The molten slag, is waterquenched rapidly, after the molten iron is trapped off which results in the formation of a glassy granulate. Activation of ground granulated blast furnace slag by using calcined dolomite kai gu1,2, fei jin 2, abir altabbaa, bin shi1 1 school of earth sciences and engineering, nanjing university, 163 xianlin avenue, nanjing, china, 210093 2 department of engineering, university of cambridge, trumpington road, cambridge, uk, cb2 1pz. Geopolymer is a type of concrete that has become more popular in recent years due to the fact that is significantly more environmental friendly than standard concrete. The iron ore is reduced to iron and the remaining materials from a slag. The ground granulated blast furnace slag ggbfs is a byproduct of iron manufacturing, when added to concrete improves its properties such as workability the ground granulated blast furnace slag ggbfs is a byproduct of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. Pdf ground granulated blast furnace slag ggbs based. Gbf slag is a type of bf slag, which is obtained by waterquenching molten iron slag from the blast.
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