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