The higher amount of ggbfs replacing cement in concrete, the lesser. 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. This usage of ggbs serves as replacement to already depleting conventional building materials and the recent years and also as. Divya bhavana civil assistant professor aurora engineering college hyderabad, india abstractthe objective of this research work is to reduce the cost of the construction. To check the economic viability of the usage of ggbs, keeping in view of the safety measures. An experimental study on the strength properties of. This paper presents the workability study of concrete with ggbs as a replacement material for cement without the addition of super plasticizer. The curing process also affects the properties of concrete made from ordinary or. Properties of concrete with ground granulated blast. Results and discussion concrete with process fly ash, when the percentage of ggbs replaced to cement with varying percentage from 25% to 40% the following results were drawn. The mechanical properties of hardened concrete include the compressive strength, flexural strength and split tensile strength whereas physical properties includes. To study the effective partial replacement of cement with ggbs and provide environment friendly construction material. It is observed that there is an increase in the compressive strength for different concrete mixes made with ggbs.
The single type of fibre with reinforcement in concrete improves the mechanical properties at certain level. What is maximum content of ggbs in concrete mix design. Experimental study on geopolymer concrete incorporating ggbs. Physical properties of ggbs colour off white powder bulk density loose 1. The basic properties of natural and recycled aggregate were determined. Durability of concrete is an important factor considered for structures. This is due to the presence of reactive silica in ggbs which offers good compatibility. Abstract concrete is a brittle material when it undergoes heavy loads, cracks will form and to reduce this and improve high strength in concrete certain admixtures are used. Effects of ggbs on geotechnical properties of black cotton soil under the guidance of shri. This paper deals with the mechanical properties of concrete made with ground granulated blast furnace slag ggbfs subjected to temperatures up to 350 c. The use of fibre reinforcement concrete provides the ductility and toughness required for higher strength. Gudadappanavar assistant professor department of civil engineering presented by.
During this process, the slag gets fragmented and transformed into amorphous granules glass, meeting the requirement of is 12089. Ggbs is frequently used in the production of low heat cement. Granulated blast furnace slag is obtained by rapidly chilling quenching the molten ash from the furnace with the help of water. Greater the percentage of ggbs, greater will be the effect of ggbs in concrete. Itz microstructure of concrete containing ggbs sciencedirect. Strength properties of a bacterial concrete with flyash and ggbs etaveni madhavi civil assistant professor aurora engineering college hyderabad, india t. Experimental study on geopolymer concrete incorporating. Use of ggbs in concrete is recognized by leed leadership in energy and environmental design and add points towards its certi. The smoother surface texture and glassy surface of ggbs particles also helps to improve workability. Effect of silica fume and ggbs on concrete properties. So incorporating this waste material in concrete can reduce the depletion of conventional concrete components such as cement, fine. Pdf experimental study on strength properties of concrete. Chemical properties of cement and ggbs material sio 2 al 2 o 3 fe 2 o 3 cao mgo so 3 k 2 o na 2 o loi. Strength properties of a bacterial concrete with flyash.
Very occasionally, it can be found up to a ratio of 90% ggbs and 10% pc. Durability properties and microstructure of ground. Ground granulated blast furnace slag ggbs jsw cement. 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 order to observe the effect of concrete quality on the corrosion behavior of embedded steel bars, two watercement ratios of. Ramesh 2 studied the effects of partial replacement of cement with bfs on various properties of concrete. Experimental study on mechanical properties of concrete with partial replacement of cement by ggbs and fly ash macharla chaitanya sai kumar 1, kuppala srinivasa rao2, yalavarthi sasidhar3, kolluri dharani4 department of civil engineering 1,2,3,4, sir c r. Strength, carbon footprint and cost considerations of.
What is the advantage of using ggbs as replacement of. High strength concrete incorporating ground granulated blast. On the other hand, it also contributes to environmental protection because it minimizes the use of cement during the production of concrete. Experimental study on mechanical properties of concrete with. 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. Concrete grades of m 25 have been taken for the work.
Study on strength properties of concrete using ggbs and steel fiber as partial replacement of cement article pdf available in journal of industrial pollution control 331. Working with ggbs concrete fresh concrete containing ggbs has better mobility characteristics, arising from the consistent fineness and particle shape of the ggbs powder, and from its slightly lower relative density. Two types of water glass with different silicate modulus were used. Ggbs concrete has better water impermeability characteristics. High strength concrete using ground granulated blast furnace slag ggbs thavasumony d, thanappan subash, sheeba d. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree celsius. Influence of granulated blast furnace slag on mechanical. Geo polymer concretegpc represents a rather recent development in concrete materials technology and its ggbs based concrete, possessing the most desirable properties during fresh as well as hardened concrete stages.
In the construction industry mainly the production of portland cement will causes the emission of pollutants results in environmental pollution. Instead of it leading to an increase in solid waste generation, this industrial byproduct can be managed properly and effectively by making use of. Example blending it with 70% of ggbs psc will have 70% ggbs and opc 30% total will some to 100%. Most commonly used pozzalonas are fly ash, silica fume, metakaolin, ground granulated blast furnace slag ggbs. Hence, its effects on the properties of concrete in fresh and hardened form also change signi. Effect of cementitious waste material ggbs on concrete. Pdf strength and durability studies on ggbs concrete. Ggbs hardens very slowly so it is generally used along with ordinary portland cement in concrete. Ground granulated blast furnace slag ggbs chemical. After grinding it is stored in silo and then sent for delivery through bag packs or in bulker as loose cement. The introduction of ggbs has a great effect on the microstructure of concrete, which includes the interfacial transition zone itz between aggregates and the hardened bulk cement paste. Green concrete using ggbs, river pebbles and crf as. And 30% replacement of ggbs is greater than the 50% replacement of ggbs. Dec 21, 2017 during this process ggbs is added into it as per % and grinded with clinker and gypsum.
Strength properties of a bacterial concrete with flyash and ggbs. 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. Experimental study on geopolymer concrete incorporating ggbs v. Pdf study on strength properties of concrete using ggbs and. Ggbs reduces the risk of sulfate attack on the concrete. Study of properties of concrete using ggbs and recycled. The effect of ggbs, fly ash, silica fume and limestone fines on the properties of concrete cementitious materials. Experimental study on mechanical properties of concrete. It is suggested that ggbs is generally beneficial in extending the life of concrete, and that this effect is especially important where the attack is the result of the movement of aggressive ions. The topic deals with the usage of ggbs and advantages as well as disadvantages in using it in concrete. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. Gpc is superior to conventional cement concretecccas the ingredients of gpc contribute most optimally and. Effect of ggbfs of durability properties of concrete is discussed in this article. Effect of partial replacement of cement with ggbs on.
The physical properties and chemical composition of cement and ggbs are given in. Pdf study on strength properties of concrete using ggbs. Nov 01, 2014 working with ggbs concrete fresh concrete containing ggbs has better mobility characteristics, arising from the consistent fineness and particle shape of the ggbs powder, and from its slightly lower relative density. Ground granulated blast furnace slag ggbs 1 is a by product from the blast furnaces used to make iron. Thats why ggbs is powerful in stopping efflorescence when ggbs used at replacement ranges from fifty to sixty. Geopolymer is a type of amorphous aluminohydroxide product that exhibits the ideal properties of rockforming elements, i.
What is the advantage of using ggbs as replacement of cement. Pdf characteristics of ggbs as an alternate material in. Influence of granulated blast furnace slag on mechanical properties of foam concrete hanizam awang1 and zaid shaker aljoumaily2 abstract. What is maximum content of ggbs in concrete mix design civil4m. These operate at a temperature of about 1500 degrees centigrade and are fed with a carefully controlled mixture of iron ore, coke and limestone. The itz is a weakness zone in the microstructure of concrete, but it is one of the most important factors influencing the performance of concrete. On the basis of present work we found that ggbs in concrete. Strength development characteristics of concrete produced. To analyze effect of ggbs on the properties of fresh concrete especially workability of concrete. For this purpose, normal concrete having compressive strength of 34 mpa was designed using ggbfs as partial replacement of cement. The resistance to sulfate attack on concrete can also be reduced by the addition of ggbs to concrete for both moderate and severe environment oconnell, 2012. May 09, 2018 ground granulated blast furnace slag concrete. Alotaibi s 2008 had performed the durability tests on concrete containing ggbs activated by water glass. Earlyage strength of ggbs concrete is lower than the normal pc concrete.
During this process ggbs is added into it as per % and grinded with clinker and gypsum. The mix design was done to obtain a concrete mix control mix of grade m40. Abhijeet kumar singh 2sd11cv001 aquib nasir razi 2sd11cv009 dibyajyoti sarma 2sd11cv020 kamlesh kumar 2sd11cv031 8th semester b. Compressive strength of concrete mixtures that were kept in water, 10% hcl and 15% h 2 so 4.
Study and analysis of strength of ggbs concrete international. Properties of concrete containing ground granulated blast. Kanta rao abstract the major problem the world is facing today is the environmental pollution. Ggbs being a waste material, it needs proper method for disposal. A typical combination is 50% ggbs and 50% ordinary portland cement. Cement with ggbs replacement has emerged as a major alternative to conventional concrete and has rapidly drawn the concrete industry. It can also influence the electrochemical pore solution in cement system by the addition of ggbs to concrete cheng, et al. Ternary systems composed by portland cement, slag and silica fume have also been used in the production of highstrength concrete.
From structural point of view, ggbs replacement enhances lower heat of hydration, higher durability and higher resistance to sulphate and chloride attack when compared with normal ordinary concrete. Partial replacement of cement with ggbs in self compacting. This paper experimentally comparing the mechanical properties between ground granulated blast furnace slag ggbs and unground blast furnace slag gbs. Durability of concretes containing ground granulated blast furnace. Concrete created with ggbs continues to develop the strength as the passes of time, and it had seen that 28days strengths became double over the periods of 10 to 12 years. Ground granulated blast furnace slag in concrete and its. Effect of cementitious waste material ggbs on concrete as a replacement in cement. High strength concrete incorporating ground granulated. Introduction geopolymer concrete utilizes fly ash and ggbs as a binder system to produce concrete eliminating cement. Ggbs ground granulated blastfurnace slag is perfect for use in concrete applications and large pours. An experimental study on the strength properties of concrete. May 20, 2014 ground granulated blastfurnace slag ggbs is a green construction material used to produce durable concrete. Ggbs is often used in concrete to improve certain properties, both in fresh and hardened concrete.
Concrete made with ggbs cement sets more slowly than concrete made with ordinary portland cement, depending on the amount of ggbs in the cement mix, but also continues to gain strength over a longer period leading to improved overall durability and life expectancy. Durability is an important factor that must be appreciable for any structure so that it is performing for the requirement for which it is built for. The secondary pozzolanic reactions can result in reduced pore connectivity. Durability properties and microstructure of ground granulated. Properties of concrete with ground granulated blast furnace.
Ground granulated blastfurnaceslag ggbs is a solid waste produced during the manufacture of iron. The present technical report focuses on investigating characteristics of concrete with partial replacement of cement with ground granulated blast furnace slag. Effect of ground granulated blast furnace slag as partial. The characteristic of ggbs was examined using particle size analyzer, xray diffraction xrd and chemical analysis tests. Due to less lime content materials, permeability is decreased. Table 1 shows the physical and chemical properties, whereas figs. Properties of concrete containing ground granulated blast furnace slag ggbfs at elevated temperatures. Ground granulated blast furnace slag ggbs1 is a by product from the blast furnaces used to make iron. Ggbs was used as partial cement replacement and recycled aggregates as replacement for fine and coarse aggregate. Geopolymer concrete with flyash and ggbs at ambient. They concluded that concrete made by fly ash and ggbs had good strength and durable properties compared to conventional. For example, partial replacement of portland cement by ggbs generally increases the resistance of concrete to sulphate attack and chloride attack. In the construction industry mainly the production of portland cement will causes the emission of.
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