It is observed that there is an increase in the compressive strength for different concrete mixes made with ggbs. In the calculation of the equivalent watercement ratio for mixes with ggbs, an efficiency factor of 0. High strength concrete incorporating ground granulated. Granulated blast furnace slag is obtained by rapidly chilling quenching the molten ash from the furnace with the help of water. Ggbs concrete at high replacement ratio enhanced the service life due to a combination of dense pore. Experimental study on partial replacement of cement by flyash.
Ggbs dust does not present any fire or explosion hazard. Final setting time min 265 the granulated slag is extracted from the process of pig iron production, where the molten slag is quenched with cold water, producing glassy granulates. Using one tonne of regen in concrete reduces the embodied co2 by around 900kg, compared to using one tonne of portland cement, and also increases its durability. Ground granulated blastfurnace slag ggbs is a nonmetallic and nonhazardous waste material of iron industry. Dec 21, 2017 during this process ggbs is added into it as per % and grinded with clinker and gypsum. Two major uses of ggbs 2 are in the production of qualityimproved slag cement, namely portland blast furnace cement pbfc and highslag blastfurnace cement hsbfc, with ggbs content ranging typically from 30 to 70% and in the production of readymixed or sitebatched durable concrete. In the calculation of the equivalent water cement ratio for mixes with ggbs, an efficiency factor of 0. Belgium 25%, italy 27% and germany 14% also have high ggbs cement usage levels. In this study experimental investigation on ggbsground granulated blast furnace slag has carried out which is byproduct of iron industry and also can be used as replacement with ordinary portland cement in concrete. G student structural engineering 2professor 1,2department of civil engineering 1,2k.
During this process, the slag gets fragmented and transformed into amorphous granules glass, meeting the requirement of is 12089. It mainly contains calcium silicoaluminate with high reactivity. The materials used in the experimental work namely cement, ggbs. Concrete is the most commonly and widely used building material applied in all forms of construction, with. And now, its connected to the adobe document cloud. Chemically it is similar to, but less reactive than. Chemically it is similar to, but less reactive than, portland cement pc. When ggbs is mixed with ordinary cement you get ggbs low carbon cement. Experimental study on partial replacement of cement by flyash and ggbs syed asif ali1 professor shaik abdullah2 1p. Concrete made with ggbs cement sets more slowly than concrete made with ordinary portland cement, depending on the amount of ggbs in the cementitious.
Ground granulated blast furnace slag ggbs chemical. It is fully called as groundgranulated blastfurnace slag ggbs or ggbfs and 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. This is due to the presence of reactive silica in ggbs which offers good compatibility. A wide variety of ggbs cement options are available to you, there are 203 suppliers who sells ggbs cement on, mainly located in asia. The cement types used were cem i, cem iib and cem v conforming to bs en 1971. In comparison, the production of ground granulated blastfurnace slag ggbs requires less than a fifth of the energy and produces less than a tenth of the carbon dioxide emissions. Ggbs is produced through quenching the molten slag in water and then grinding it into a fine powder. A wide variety of ggbs price options are available to you, there are 68 suppliers who sells ggbs price on, mainly located in asia. Cement ordinary portland cement of43 grade parashakthi was used in this investigation.
So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine aggregate and coarse. Ggbs can also be moved by airslides, cement screws and bucket elevators. Pdf concrete is probably the most extensively used construction material in. Example blending it with 70% of ggbs psc will have 70% ggbs and opc 30% total will some to 100%. Is ggbs a good partial replacement for cement in concrete. Pdf ground granulated blast furnace slag ggbs is a waste material generated from iron. Its the only pdf viewer that can open and interact with all types of pdf content, including. Properties of concrete with ground granulated blast furnace. What is maximum content of ggbs in concrete mix design. May 21, 2017 yes ggbs is a good partial replacement for cement in concrete mix. However, by mixing ordinary cement with a material called. Ground granulated blastfurnace slag ggbs is a nonmetallic and non hazardous waste material of iron industry. The sem micrograph of pcc at 7 days and 360 days respectively. This study calibrates the performance of concrete mixtures in terms of.
The investigation showed that by replacing the ggbs upto 40%, compressive, split tensile, flexural. The microstructure view of the following study was shown in figure 7 and 8. Partial replacement of cement with ggbs in concrete. Estimation of corrosionfree life for concrete containing ground. Blue circle ground granulated blastfurnace slag ggbs. Ggbs is used as a direct replacement for portland cement, on a onetoone basis by weight. May 26, 2016 in this study experimental investigation on ggbs ground granulated blast furnace slag has carried out which is byproduct of iron industry and also can be used as replacement with ordinary portland cement in concrete. Itz microstructure of concrete containing ggbs sciencedirect. The cubes, cylinders and prisms ar e tested for compressive strength, split tensile strength, flexural stren gth. The higher amount of ggbfs replacing cement in concrete, the lesser carbon footprint is expected due to. Durability properties and microstructure of ground. A cem i, 52,5n portland cement used for reference concrete mix for blending with fa, ggbs and sf to produce cem ii and cem v cements for the study.
Slag it is possible to reduce the carbon footprint of cement by up to. Green concrete using ggbs, river pebbles and crf as. Experimental study on geopolymer concrete incorporating ggbs v. The indian cement industry is the second largest in the world with an installed capacity of 400 million tonnes and the production for the year 2014 was around 270 million tonnes and presently. Ground granulated blastfurnace slag ggbs to bs 6699.
V 2, ganapathy ramasamy 2 1assistant professor, department of civil engineering, srm university, chennai, india. Ggbs cement is a recycled product and it replaces the use of portland cement in concrete on a oneforone basis. Use of ggbs in concrete is recognized by leed leadership in energy and environmental design and add points towards its certi. Use of ggbs as cement replacement emerged simultaneously reduce cost of concrete and help to reduce rate of cement consumption. Kanta rao abstract the major problem the world is facing today is the environmental pollution. Nov 01, 2014 strength ggbs cement has a higher ultimate strength than concrete made with portland cement. Properties of hardened concrete with blast furnace slag. Regen ground granulated blast furnace slag ggbs is a cement substitute, manufactured from a byproduct of the ironmaking industry. Properties of concrete with ground granulated blast. Performance evaluation of ordinary portland cement with ggbfs. Cement the ordinary portland cement of 53grade was used in this study conforming to is.
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. Strength and durability studies on ggbs concrete ssrgjournals. Partial replacement of cement with ggbs in self compacting. Ordinary portland cement opc has been traditionally used in the construction of concrete silos in ireland. Ground granulated blast furnace slag in concrete and its. What is maximum content of ggbs in concrete mix design civil4m. Ggbfs is used to make durable concrete structures in combination with ordinary portland cement andor other pozzolanic materials. Sodium sulfate expansion tests sulfuric acid tests ultrasonic tests. After iterative trial mixes the watercement ratio wc was selected as 0. Pdf concrete is the most commonly used material in the construction industry. During this process ggbs is added into it as per % and grinded with clinker and gypsum. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Apr 19, 2007 the leading user of ggbs is the netherlands, where 54% of cement used in making concrete comprises ggbs cement.
Ggbs being a waste material, it needs proper method for disposal. V 2, ganapathy ramasamy 2 1assistant professor, department of civil engineering, srm university, chennai, india 2postgraduate, department of civil engineering, srm university, chennai, india received 17 june, 2017. In this study partial replacement of cement opc 43grade by groundgranulated blast furnace slag which varies from 5% to 25% at interval of 5% by total weight of opc. Ggbs is a byproduct of the iron and steel industry. Nsa leachate from blast furnace slag april 8, 2003 page 2 leachate what it is, how to treat it leachate can be described as a solution or product that is obtained when a solid material has been extracted or dissolved by the action of a percolating liquid water. When mixed with water it will hydrate in a similar way to portland cement.
In the construction industry mainly the production of portland cement will causes the emission of. Ggbs concrete ggbs proportions on its own, ground granulated blast furnace slag ggbs hardens very slowly and, for use in concrete, it needs to be activated by combining it with portland cement. Effect of partial replacement of cement by groundgranulated. Ggbs can improve the fluidity of fresh concrete, reduce its bleeding and postpone the setting when portland cement is partially replaced by ggbs in concrete. Slower strength development and potentially higher longterm strength.
In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. The test programme comprised monitoring performance through. The production of ggbs requires less additional energy as compared with the energy needed for the production of portland cement. Casting and testing detail total number 12 cubes and 8 cylinders were casted. In the construction industry mainly the production of portland cement will causes the emission of pollutants results in environmental pollution. Ggbs cement is added to concrete in the concrete manufacturers batching plant, along with portland cement, aggregates and water. Ground granulated blastfurnace slag ggbs is a glassy material from byproduct of blast furnace ironmaking. 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. Pdf strength and durability studies on ggbs concrete. Manufacturing portland cement pc is a major contributor of greenhouse gases, responsible for about 5 % of all global carbon dioxide emissions habert and roussel 2009.
Find, read and cite all the research you need on researchgate. Thus the workability is improved by the partial replacement of the ggbs with cement. The pcc contained 500kgm3 of cement and the ggfac contained 300 kgm3 of cement, 125kgm3 of fly ash and 75kgm3 of ggbs. Ground granulated blastfurnace slag ggbs is the slag from iron producing blastfurnaces that is rapidly quenched in water and then ground into a powder. Strength, carbon footprint and cost considerations of. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron. The leading user of ggbs is the netherlands, where 54% of cement used in making concrete comprises ggbs cement. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree celsius.
Groundgranulated 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. In the blast furnace, slag floats to the top of the iron and removed. Dust control is the same as that required for portland cement. Ggbs by partial replacing cement and addition of ggbs without replacing cement. Transportation is by bulk tankers, as for portland cement. After iterative trial mixes the water cement ratio wc was selected as 0. Green concrete using ggbs, river pebbles and crf as partial replacement to cement and aggregates pramodini naik gaonkar senior lecturer in civil engineering, government polytechnic bicholim, goa, 403504 email.
Adobe acrobat reader dc software is the free global standard for reliably viewing, printing, and commenting on pdf documents. Higher proportion of the strengthenhancing calcium silicate hydrates csh than concrete made with portland cement only, and a reduced content of free lime, which does not contribute to concrete strength. Experimental study on geopolymer concrete incorporating ggbs. It improves the quality and durability of concrete. Ground granulated blast furnace slag conclusion jsw cement. Replacement levels for ggbs vary from 30% to up to 85%.
Ground granulated blast furnace slag ggbs is a byproduct of the iron manufacturing. Yes ggbs is a good partial replacement for cement in concrete mix. N engineering college, gulbarga, karnataka, india abstract this paper presents a laboratory investigation on. Ground granulated blastfurnace slag ggbs as a cement substitute. On top of that, we produce, import and export supply materials for cement and offer national road surfacing and contracting services. High strength concrete incorporating ground granulated blast. Pdf using ggbs for partial cement replacement in concrete. As ggbs is partially replaced with the cement, the consumption of the cement is reduced and also the cost of construction is reduced.
Use of ggbs concrete mixes for aggressive infrastructural. Fly ash, ground granulated blast furnace slag, silica fume and rice. A typical combination is 50% ggbs with 50% portland cement, 4but percentages of ggbs anywhere between 20 and 80 % are commonly used. Department of civil, structural and environmental engineering. Why we are using blast furnace slag cement in concrete.
Experimental study on geopolymer concrete incorporating. N engineering college, gulbarga, karnataka, india abstract this paper presents a. Ground granulated blast furnace slag ggbs is used as fine partial replacement in the cement in self compacting concrete. Ggbs partially replaced in concrete in step of 20% 0%, 20%, 40% and 60%. Mar 03, 2017 it is fully called as groundgranulated blastfurnace slag ggbs or ggbfs and 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. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to.