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