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. The use of ggbs serves as a replacement to already depleting conventional building materials and also as being a byproduct it serves as an eco. Effect of silica fume and ggbs on concrete properties. Ground granulated blast furnace slag ggbs chemical. What is the advantage of using ggbs as replacement of. Carbonation resistance of ggbs concrete magazine of. And 30% replacement of ggbs is greater than the 50% replacement of ggbs. And hence service life is enhanced and the maintenance cost is reduced. Experimental study on geopolymer concrete incorporating.
In the production of ready mixed concrete, ggbs replaces a substantial portion of the normal portland cement concrete, generally about 50 %, but sometimes up to. The topic deals with the usage of ggbs and advantages as well as disadvantages in using it in concrete. Department of civil, structural and environmental engineering. The performance of blended concrete with accelerated curing method has been accessed through compressive strength, effect of ggbs. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. Itz microstructure of concrete containing ggbs sciencedirect.
But little is known about interaction of ggbs based concrete with marine environment. Most commonly used pozzalonas are fly ash, silica fume, metakaolin, ground granulated blast furnace slag ggbs. Ground granulated blast furnace slag has been constantly in use as cementitious replacement for sustainable infrastructure. Ggbs is used to make durable concrete structure in combination with ordinary portland cement and or other pozzolona materials. High strength concrete using ground granulated blast furnace slag ggbs thavasumony d, thanappan subash, sheeba d. After grinding it is stored in silo and then sent for delivery through bag packs or in bulker as loose. Ground granulated blast furnace slag in concrete and its. Similar to the fly ash effect, the carbonation of concrete. Concrete made with ggbs cement sets more slowly than concrete made with ordinary portland cement, depending on the. This paper presents the workability study of concrete with ggbs as a replacement material for cement without.
Study on fly ash and ggbs based geopolymer concrete. On the other hand, it also contributes to environmental protection because it minimizes the use of cement during the production of concrete. This is due to the presence of reactive silica in ggbs which. Ggbs concrete has better water impermeability characteristics. Effects of ggbs on geotechnical properties of black cotton soil under the guidance of shri. Properties of concrete with ground granulated blast. Sustainable studies on concrete with ggbs as a replacement. Ground granulated blastfurnace slag ggbs is a glassy material from byproduct of blast furnace ironmaking. Strength properties of a bacterial concrete with flyash. Pdf strength and durability studies on ggbs concrete.
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. Study and analysis of strength of ggbs concrete international. Concrete plays a vital role in the development of infrastructure viz. On the basis of present work we found that ggbs in concrete improves workability, compressive strength, flexural strength, split tensile strength and decreases. Gudadappanavar assistant professor department of civil. Ground granulated blast furnace slag ggbs based concrete. Unfortunately, it is not available for smallerscale concrete production because it can only be economically supplied in bulk. This study presents an analysis of a 30 000 strong data matrix derived from 227 studies originating from 35 countries since 1968.
Effect of partial replacement of cement with ggbs on properties of concrete tejaswini s. A ggbs concrete ggbs give sustainable gain and strength 30% of ggbs strength decrease compared with control of concrete. Pdf studies on optimum usage of ggbs in concrete raja. Ground granulated blast furnace slag ggbs is a byproduct from the blast furnaces used to produce iron. Persistence and degradability set readymixed concrete materials are resistant to degradation and will persist in the environment. The utilization of supplementary cementation materials is well accepted, since it leads to several possible improvements in the concrete composites, as well as the overall economy.
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. Effects of ground granulated blast furnace slag in portland cement. Effect of cementitious waste material ggbs on concrete. Ggbs partially replaced in concrete in step of 20% 0%, 20%, 40% and 60%. This project represents study on the mechanical properties of geopolymer concrete with various mixes.
Test concretes were made by adding ggbs to concretes in an amount. Abstract concrete is a brittle material when it undergoes heavy loads, cracks will. It mainly contains calcium silicoaluminate with high reactivity. Experimental study on geopolymer concrete incorporating ggbs v. These days due to therapid development in offshore engineering marine. Ggbs is also used in other forms of concrete, including sitebatched and precast. Ggbs is not only used in concrete and other applications include the insitu stabilisation of soil. Very occasionally, it can be found up to a ratio of 90% ggbs and 10% pc.
In this research, the effects of the partial replacement of cement with ggbs on the engineering properties of concrete under different curing conditions have. Opc used with ggbs blend chemically binds the chlorides with slag hydrates effectively reducing the mobility of chlorides thereby reducing the reinforcement corrosion risk. The use of ggbs in concrete has proved to improve certain properties, when. Two types of water glass with different silicate modulus were used. Experimental behavior of reinforced concrete with partial. It can also influence the electrochemical pore solution in cement system by the addition of ggbs to concrete cheng, et al. Effect of partial replacement of cement with ggbs on.
Kanta rao abstract the major problem the world is facing today is the environmental pollution. With the addition of 40% of ggbs as a replacement of cement for an m25 grade of concrete, there is an increase in the strength compared to the normal concrete. But little is known about interaction of ggbs based concrete with marine. Strength development characteristics of concrete produced. The ggbs in these concretes confirm to the minimum characteristics specified by astm c989 for use as mineral admixture in concrete with fineness ranging from 350 to 465 m 2 kg, sio 2 from 31. Test results indicate that use of replacement cement by ggbs in concrete has.
The influence of ground granulated blast furnace slag ggbfs on the characteristics of fresh concrete will let us know more about the working of ggbfs in a broader way. The objective of the current research project was to quantify the strength development and deicer scaling resistance of grade 120 slag cement concrete over a. Properties of fresh concrete with ground granulated blast. Ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete.
Oner a akyuz s 2007 investigated to find the optimum level of optimum level of ground granulated blastfurnace slag ggbs on the compressive strength of concrete. Pdf concrete is the most commonly used material in the construction industry in which cement is its vital ingredient. An experimental study on cement replacement by ggbs. Partial replacement of cement with ggbs in self compacting. Ggbs improves longterm strength, protects concrete from aggressive chemical attack, reduces heat of hydration 35x. Jagdish ahaja 110320106038 shyam bhatt 110320106102 kunal rajput 110320106117 dashil kasvala.
Results and discussion concrete with process fly ash, when the percentage of ggbs replaced to. Ggbs 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 fine powder. However, some concerns regarding its performance in freezing environments have been raised. Concrete is a mixture of cement, fine aggregate, coarse aggregate and water. The concern about the depletion of natural sources and the effect on environment has particularly focused attention on synthetically produced material aggregate manufactured from waste material. Earlyage strength of ggbs concrete is lower than the normal pc concrete. Partial replacement of cement with ggbs in 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.
In this study, geopolymer concrete is produced with fly ash and sodium hydroxide and. 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. During this process ggbs is added into it as per % and grinded with clinker and gypsum. Research results confirming that the use of silica fume sf and ground. High strength concrete incorporating ground granulated. Pdf ground granulated blast furnace slag ggbs based. Research results confirming that the use of silica fume sf and ground granulated blast furnace slag ggbs with available material in sudan are adequate to produce high grade concrete.
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