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