Pdf effects of ground granulated blast furnace slag. Bf slag is rich in cao, sio2, al2o3, and mgo which are similar to the components of portland cement. Granulated blast furnace slag gbfs from primary steel making processes. Ingredients name cas proportion calcium oxide 5788 3060 % silicon dioxide 7631869 3060 % aluminium oxide 44281 1030 % magnesium oxide 9484 110 %. 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. Supplementary cementing material, ground granulated blastfurnace slag, type s, meeting the requirements of csa a3001 and csa a3004, from the following plants. Blast furnance slag user guideline portland cement. 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.
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. Strength properties of sisal fiber concrete with 30%. View enhanced pdf access article on wiley online library html view download pdf for offline viewing. 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. Granulated blast furnace slag export data of hs code 26180000. Ground granulated blastfurnace slag for concrete jis a 6206. When ironore, coke and limestone melt in the blast furnace, two products are producedmolten iron, and molten slag. Introduction since granulation of lead blast furnace slag started at. These operate at a temperature of about 1500 degrees centigrade and are fed with a carefully controlled mixture of iron ore, coke and limestone. Fly ash and blast furnace slag for cement manufacturing econstor. 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.
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. It improves the quality and durability of concrete, and its production is virtually co 2free. Till seventies blast furnace bf slag was considered a waste product and was being dumped at a convenient place away from the blast furnace. It is a nonmetallic product, consisting of silicates and aluminosilicates of. Clayey soils are problematic due to the reactions of their minerals, which gives them an exhibition of shrinkswell properties. The slag content in cement is 50, 60, 70, and 80 percent. 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. Influence of metakaolin on strength and durability characteristics of. Geopolymer concrete is produced by reacting with high rich aluminate and silicate. Heavy metals can be serious pollutants of natural water bodies causing health risks to humans and aquatic organisms. The cyclone furnace process is characterised by high treatment rates combined with continuous and independent operation. Ground granulated blastfurnace slag cement ggbs, a byproduct in steel manufacture, has been used to improve concrete strength. Ground granulated blast furnace slag in concrete and its. 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.
Blast furnace slag is a byproduct of iron manufacturing, via thermochemical reduction, in a blast furnace. Ground granulated blast furnace slag ggbs chemical. Slag cement, ground granulated blast furnace slag ggbfs, granulated blast furnace slag gbfs, slag product form. In order to explore the difference of the activation effect on the ground granulated blast furnace slag ggbfs subjected to variant activators as wel. 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. Results were sufficiently encouraging to warrant pilot plant scale trials being undertaken. This glassy granulate is dried and ground to the required size, which is known as ground granulated blast furnace slag ggbs. Ggbs is an acronym for ground granulated blast furnace slag, a byproduct from the manufacture of iron.
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. Montreal qc, spragge on, south chicago il, stoney creek on. Ground granulated blast furnace slag is used as an additive with portland cement in. 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. These days due to therapid development in offshore engineering marine environment and its simulation has come under limelight.
Properties of concrete with ground granulated blast furnace. This molten slag is at around 1400 1550 deg c temperature. Experimental behavior of reinforced concrete with partial replacement of cement with ground granulated blast furnace slag m. Granulated slag material safety data sheet page 1 of 7 material safety data sheet section 1 chemical product and company identification product names. Adsorptive removal of five heavy metals from water using. The most common process is quenching with water, but air or a combination of air and water may be used. The use o ground granulated blast furnace ggbf sl ag in the production of blended cements b egan in 1905 in the united states. Portland cement free activation of ground granulated blast furnace slag download pdf. Microstructural evolution and characterization of ground. Properties of hardened concrete with blast furnace slag. 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. Blast furnace slag is nonreactive in a high alkali environment, such as concrete and soils. Ground granulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Certified cement, granulated blast furnace slag, and blended cement program.
This glassy granulate is dried and ground to the required size, which is known as ground granulated blast furnace slag ggbfs. Liquid slag produced in a blast furnace bfis at a temperature of around 1500. Effects of ground granulated blast furnace slag in. Behaviour of ground granulated blast furnace slag concrete in. Dry granulation of blast furnace slag steel360 news. Ground granulated blastfurnace slag ggbsslag lafarge in. 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. Strength, carbon footprint and cost considerations of. 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 is typically 50% of the total cementitious material but depends on the grade of ground granulated blast furnace slag used. Slag cement is often referred to as ground granulated blastfurnace slag ggbfs. Aggregates are used for all types of base and subbase construction. As an alternative material for lowheat cement, granulated blast furnace slag can be considered. Ground granulated blast furnace slag has been constantly in use as cementitious replacement for sustainable infrastructure.
The use of ggbfs in portland cement is governed by aashto m302. 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. Yet its many advantages in producing sustainable, highquality concrete remain underappreciated and underused. Processing of granulated blast furnace slag and its. 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. Safety data sheet ground granulated blast furnace slag. The slag shall contain no additions and shall conform to the sulfide sulfur and sulfate chemical composition requirement. Properties of hardened concrete with blast furnace slag ggbfs the physical properties of ground granulated blast furnace slag ggbfs provides advantages to the. Gbf slag is a type of bf slag, which is obtained by waterquenching molten iron slag from the blast.
Pdf experimental analysis of nondestructive testing. Continue flushing until advised to stop by a poisons information centre, a doctor, or for at least 15 minutes. Ground granulated blast furnace slag is molten slaga byprod uct of the blast furnace ironmaking processwhich is watercooled rapidly, dried, and ground. Pdf fresh and hardened properties of ground granulated. A wide variety of ground granulated blast furnace slag options are available to you. Gopinath3 1,2,final year student, department of civil engineering, sathyabama university, chennai, india. It is relatively more recent pozzolanic material that has received considerable attention in both research and. Ground granulated blast furnace slag ggbs based concrete. Blast furnace slag concrete can be reliably pumped when the slag is supplied to the readymix production in a saturated condition. Slag substitution as a cementing material in concrete mdpi. The test method was based upon the german flat prism test. Ggbs being a waste material, it needs proper method for disposal. The molten slag consists of mainly siliceous and aluminous residue. 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.
The development of compressive strength of ground granulated blast furnace slag palm oil fuel ashfly ash based geopolymer mortar. Ggbs is used in combination with portland cement to produce superior longer lasting concrete. In addition to applications requiring graded aggregates, pit run blast furnace slag is extensively used for subbase. 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. Slag cement benefits and use in concrete slag cement news.
Sulfate resistance of combinations of portland cement and. This involves the activation of the slag with alkalis and sulphates in order to form its hydration product. Comparing properties of concrete containing electric arc furnace. This material is manufactured to comply with the requirement of bs 6699. Properties of concrete incorporating fly ash and ground. 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. This applies to all cement, ground granulated blast furnace slag ggbfs, and blended cement sold to contractors for use. But little is known about interaction of ggbs based concrete with marine. 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. Minnesota department of transportation certified cement. 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.
Studying the hydration of a retarded suspension of ground. Furnace slag and its nature is studied in this project in the present paper, a. Effects of ground granulated blast furnace slag in portland. Blast furnaces are fed with controlled mixture of ironore, coke and limestone, and operated.
Minnesota department of transportation mndot will only accept cementitious materials from the mndot certified sources list. Recent attention has been given to the use of ggbf slag as a sepa rate cementitious constituent of concrete. Surface chemistry of ground granulated blast furnace slag in cement pore solution and its impact on the effectiveness of polycarboxylate superplasticizers. 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. Surface chemistry of ground granulated blast furnace slag. Environmentfriendly block, ferroform, made from steel slag. Wo2017085565a2 portland cement free activation of ground. Ground granulated blast furnace slag is highly cementitious and high in csh calcium. Laboratory scale equipment was developed to recover zinc as oxide fume from granulated lead blast furnace slag. Soft soil stabilisation using ground granulated blast. Cement is partially replaced by ground granulated blast. Soft soil stabilisation using ground granulated blast furnace slag conference paper pdf available may 2017 with 2,723 reads how we measure reads. Ground granulated blast furnace slag ggbs1 is a by product from the blast furnaces used to make iron.
Page 5 granulated blast furnace slag is produced by quickly quenching chilling molten slag to produce a glassy, granular product. 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. 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. Wainwright pj, rey n 2000 the influence of ground granulated blast furnace slag ggbs additions and time delay on the bleeding of concrete. The use of ggbfs as a constituent of concrete was first recorded in 1905.
Design of selfcompacting concrete with ground granulated blast furnace slag. 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. Some engineering properties of slag concrete as in. 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. Blast furnace slag material description user guidelines. Ground granulated blast furnace ggbf slag used in concrete. Ground granulated blast furnace slag exporter, ground. Ground granulated blast furnace slag ggbs slideshare. 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.
Preferably, the slag is present in an amount ranging from 80 to 90% by weight of the composition. So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine. Granulated slag obtained from blast furnace slag is wet and coarse in nature and can not be useful directly. So drying and grinding process are carried out to make it useful. Soil stabilisation using ground granulated blast furnace slag. Experimental behavior of reinforced concrete with partial. It is a recovered industrial byproduct of an iron blast furnace. Ground granulated blastfurnace slag ggbs identified uses of the substance or mixture used as a cementitious component in concrete, motor and grout. There are also some studies on the substitutions of cement by ground granulated blast furnace slag.
Design of selfcompacting concrete with ground granulated. Standard specification for slag cement for use in concrete. Use of the cementatious properties of ground granulated blast furnace ggbf slag was reported as early as 1774. 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 shrinkswell property obtains clayey soils as inappropriate material for direct utilisation in construction. Properties of granulated blastfurnace slag cement concrete. Normally ball mill is used to make it fine in nature. 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.
Ground granulated blast furnace slag and fly ash in. Export data and price of granulated blast furnace slag zauba. Standardization of iron and steel slag products nippon steel. Pdf the development of compressive strength of ground. 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.
Properties of blastfurnace slag cement concrete subjected to. 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. 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. 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. Advanced construction technology, 4th edition pdf free. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. 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 molten slag, is waterquenched rapidly, after the molten iron is trapped off which results in the formation of a glassy granulate. The iron ore is reduced to iron and the remaining materials from a slag. This specification covers three strength grades of finely ground granulated blast furnace slag grades 80, 100, and 120 for use as a cementitious material in concrete and mortars. Ground granulated blast furnace slag ggbs is a byproduct from the blast furnaces used to make iron. 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.
Blast furnaces normally generate 250 to 350 kg of liquid slag for every ton of hot metal produced. Activation of ground granulated blast furnace slag by. But little is known about interaction of ggbs based concrete with marine environment. Granulated blast furnace slag 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. Molten slag diverted from the iron blast furnace is rapidly chilled producing glassy granules that yield.
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. However, by 14 days, the grade 120 slag cement concrete strength equaled or surpassed that of opc concrete. Blast furnace slag cementsfly ash reference properties. Evaluation of grade 120 granulated ground blast furnace slag. It consists primarily of oxides of calcium, silicon, aluminium and magnesium.
Properties of concrete with ground granulated blast. Pdf utilization of ground granulated blast furnace slag as. Pdf ground granulated blast furnace slag ggbs based. 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. Blast furnace slag granulation at cast house ispatguru. Granulated blast furnace slag 90% 65996692 gypsum caso 4 2h 2 0 25% 10101414 section 4. Ferroform has the same strength and durability as concrete. Marys cemplus, slag granules, slag cement, ground granulated blast furnace. Properties and uses of iron and steel slag mf 1826 national slag association.
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