Ggbs play an important role in making the concrete mass free. Experimental investigation on properties of concrete by partial. Experimental study on partial replacement of cement by flyash. Properties of concrete containing ground granulated blast. Fly ash, ground granulated blast furnace slag ggbs and silica fume are the most common pozzolans together with natural pozzolans used in concrete technology. What is ground granulated blastfurnace slag ggbs use of ggbs in. Sustainable studies on concrete with ggbs as a replacement. Effect of cementitious waste material ggbs on concrete as a replacement in cement. 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. Use of ggbs in concrete is recognized by leed leadership in energy and environmental design and add points towards its certi. Effects of ggbs on geotechnical properties of black cotton soil under the guidance of shri.
Recognise and award dedicated points 3 points for builders that use. Ggbs, which is a byproduct of the manufacturing of iron in the blast furnace, can partially replace cement in concrete. Comparison of hydration properties between cementggbsfly ash. For this purpose, normal concrete having compressive strength of 34 mpa was designed using ggbfs as partial replacement of cement. High strength concrete incorporating ground granulated blast. The mary mcaleese boyne valley bridge is a cablestayed bridge in county meath, ireland. The effect of ggbs, fly ash, silica fume and limestone fines on the properties of.
Experimental study on partial replacement of cement by. Binary pfaggbs and portland cement and ternary pfaggbs plus microsilica and portland cement blends at waterbinder ratios from 038 to 020 have been tested. Ggbs cement also produces a smoother, more defect free surface, due to the fineness of. Ggbs was used as partial cement replacement and recycled aggregates as replacement for fine and coarse aggregate. Tech student, 2 assistant professor department of civil engineering, east west institute of technology, bengaluru, karnataka, india abstract construction has been most important human activity since ancient time. Optimum usage of ggbs in ready m ix concrete industry. The chemical composition of jsws ggbs contributes to the production of superior cement. And 30% replacement of ggbs is greater than the 50% replacement of ggbs. The present paper is an effort to quantify the strength of ground granulated blast furnace slag ggbs at various replacement levels and evaluate its efficiencies in concrete. The amount of free caoh2 reduces due to the pozzolanic reaction. If finely ground and mixed with free lime, ggbfs can be used as cement replacement, or if.
Water in ggbs concrete takes slightly longer to combine chemically to form hydration products, thus making ggbs concrete a little more sensitive to poor curing. Properties of concrete with ground granulated blast. Effect of cementitious waste material ggbs on concrete as a replacement in cement quaid joharbhattiwala kuldeep dabhekar m. With alkaline solution sodium hydroxide and sodium silicate as binders these form aluminasilicate gel. Evaluation of water absorption and sorptivity properties of. Groundgranulated blast furnace slag is highly cementitious and high in csh calcium silicate hydrates which is a strength enhancing. High strength concrete incorporating ground granulated.
Another major hurdle of extensive use of ggbs concrete lies in the little source of supply of ggbs. Pdf strength and durability studies on ggbs concrete. Study on fly ash and ggbs based geopolymer concrete under ambient curing 1 rohit zende, 2 mamatha. Influence of ggbs on mechanical properties of high. As hong kong is not a major producer of steel, ggbs as a byproduct of steel has to be imported overseas and this introduces higher material cost due to transportation and the supply of ggbs is unstable and unsteady.
The results show broadly similar effects to those in lower strength concrete, although of differing magnitude in. In this experimental research, resistance to chloride induced corrosion of reinforcing steel bars embedded in ggbs concrete has been studied. Pdf concrete is the most commonly used material in the construction. Ground granulated blastfurnace slag ggbs to bs 6699. For ggbs contents of up to 60%, curing periods as recommended in is 326 and bs 8110 for portland cement concretes are sufficient. 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. Protective clothing should be worn which ensures that ggbs or any ggbs water mixture eg, concrete or mortar, does not come into. The basic properties of natural and recycled aggregate were determined. One of the alternatives to the conventional fine aggregate is sandy soil which is successfully incorporated in the present work. Recognise and award dedicated points 3 points for builders that use prefabrication technology andor productive construction methods 2. The hydration properties of cementggbsfly ash blended binder and cement ggbssteel slag blended binder were compared.
Ground granulated blast furnace slag ggbs a waste product of steel industry, known to have cementitious properties. Experimental analysis of partial replacement of cement by ggbs and fly ash in concrte written by virendra desale, aarti kamble, palash borwal published on 20180530 download full article with reference data and citations. An experimental study on the properties of glass fibre reinforced and ground granulated blast furnace slag concrete. Ground granulated blast furnace slag ggbs based concrete.
Although normally designated as ggbs in the uk, it can also be referred to as ggbs or slag. The high earlyage compressive strength of ggfac is determined to a large extent by the properties of fa and ggbs. The use of ggbs in concrete has proved to improve certain properties, when compared to portland cement concretes. Pdf characteristics of ggbs as an alternate material in.
Effects of different mineral admixtures on the properties. Portland cement, pozzalonic materials like fly ash and ggbs, rich in silica and alumina are used. Effect of cementitious waste material ggbs on concrete as a. This study aimed at investigating the fresh and hardened properties of scc produced by ggbs and mk as partial cement replacement. The thermophysical properties of concrete decreased with the increase in temperature except for the specific heat. The poor resistance of pcc to h2 so4 attack is due to. Fungistatic properties of granulated blastfurnace slag and related slagcontaining cements ceramics silikaty 60 1 1926 2016 21 producing cement compositions according to european standard en 1971. Sadaqat ullah, k muhammad fadhil, n tehmina, a nasir, s. Ggbs on earlyage engineering properties of portland cement pc systems. Study of properties of concrete using ggbs and recycled. Properties of concrete containing ground granulated blast furnace slag. Compressive strength of flyash, ggbs and msand based. Properties of highstrength concrete mixes containing pfa. 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 two images above show colour difference between concrete that contains ggbs and that does not contain ggbs on a median barrier in tipperary. Infrastructures free fulltext properties of blastfurnace slag. A mix proportion for geopolymer concrete was designed by assuming the unit weight of geopolymer concrete as 2400 kgm 3. This material is being studied extensively as a ecofriendly alternative to normal portland cement concrete. Ssrg international journal of civil engineering ssrgijce volume 2 issue 10 october 2015 issn. Ggbs gets responded with sodium hydroxide and sodium silicate. Concrete is a most versatile construction material because it can be designed to withstand the hardest environment while taking on the most inspirational forms. 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. Dustproof goggles should be worn wherever there is a risk of ggbs powder or any ggbs water mixture entering the eye.
Influence of ggbs on mechanical properties of highstrength concrete s. However, some concerns regarding its performance in freezing environments have been raised. Characteristics of ggbs as an alternate material in conventional concrete. The objective of this project is to study the effect of class fly ash fa and ground granulated blast furnace slag ggbs onthe mechanical properties of geopolymer concrete gpc at different replacement levels. Fresh and hardened properties of selfcompacting concrete using. To conduct the gpc with ggbs to analyse the progressions of properties like strength and durability. Advances in cement research digital object identifier. Physical properties of the ggbs and lime property lime 7 ggbs 7 physical form meltingdecomposition temperature bulk density kgm3 specific gravity specific surface m2kg dry white powder 580 c 480 2. This paper deals with the mechanical properties of concrete made with ground granulated blast furnace slag ggbfs subjected to temperatures up to 350 c. What is the advantage of using ggbs as replacement of cement. Properties of concrete incorporating fly ash and ground.
High strength concrete incorporating ground granulated blast furnace slag and steel fibres. Pdf utilization of alternate cementation materials leads to several. Align ggbs with productivity and quality raise awareness and encourage productive. 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. The compressive strength development of cement mortar. 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. Ggbs has been widely used as a cement replacement material due to its latent hydraulic properties, while fly ash has been used as a pozzolanic material to enhance the physical, chemical and mechanical properties of cement and concrete. G student structural engineering 2professor 1,2department of civil engineering 1,2k.
Boyne bridge m1 motorway concrete piers contain ggbs, resulting in a lighter more aesthetic appearance. Dustproof goggles should be worn wherever there is a risk of ggbs powder or any ggbswater mixture entering the eye. Ground granulated blast furnace slag ggbs jsw cement. Also there is slight increase in specific gravity of both type of soil.
Properties of hardened concrete with blast furnace slag ggbfs. For the reaction to proceed in opc pastes, the presence of free. Ggbs are effective in making the concrete denser and free from voids. Ground granulated blast furnace slag ggbfs was obtained from nippon denro ispat ltd. Ground granulated blastfurnace slag ggbs is a cementitious material for use as part replacement of cement opc. Gudadappanavar assistant professor department of civil engineering presented by. Ggbs play an important role in making the concrete mass free from voids and hence making the structure less permeable. Mix 1 0% ggbs mix 2 25% ggbs mix 3 50% ggbs mix 4 100% ggbs of hydration at the age of 28 days. The chemical composition of pcc and gypsum is given in table 1. Effect of cementitious waste material ggbs on concrete. Groundgranulated blastfurnace slag ggbs or ggbfs is obtained by quenching molten iron. Replacement of fine aggregates with ggbs serves a dual purpose in this study.
Study on effect of ground granulated blast furnace slag on. Test concretes were made by adding ggbs to concretes in an amount. Coarse aggregates used in this study were of 10 mm nominal size. A lower degree of hydration usually results on a more porous concrete, with lower co mpressive and tensile strengths. As now a day there is a heavy load on the natural resources like lime, for the production of cement. Study on fly ash and ggbs based geopolymer concrete. Incentivise ggbs without excessive fines up to 5 points points 3. This research paper deals with the study of water absorption and sorptivity properties of glass fiber reinforced geopolymer concrete prepared by using fly ash, ggbs. Amongst the various methods used to improve the durability of concrete, and to achieve high performance concrete, the use of ggbs is a relatively new approach. An experimental study on the properties of glass fibre. This research paper deals with the study of water absorption and sorptivity properties of glass fiber reinforced geopolymer concrete prepared by.
They were tested as per indian standard specifications is. N engineering college, gulbarga, karnataka, india abstract this paper presents a laboratory investigation on. The quenching optimises the cementitious properties and produces granules similar to coarse sand. Tech scholar professor department of civil engineering department of civil engineering g. Effects of pfa and ggbs on earlyages engineering properties of. Properties of concrete containing ground granulated blast furnace slag ggbfs at elevated temperatures. The cementitious properties of ggbs depends on the chemical composition of the ggbs slag, alkali concentration of the reacting system, glass content of the ggbs, fineness of the ggbs and portland.
Engineers are continually pushing the limits to improve its performance with the help of. Sustainable studies on concrete with ggbs as a replacement material in cement s. Over the period of time, its loadbearing properties continue to increase as it absorbs surplus lime released during hydration to form more calcium silicate hydrates. As hong kong is not a major producer of steel, ggbs as a byproduct of steel has to be imported overseas and this introduces higher material cost due to transportation and the supply of. Influence of ggbs on mechanical properties of high strength. But little is known about interaction of ggbs based concrete with marine. Increasing emphasis on the environmental impacts of. Abhijeet kumar singh 2sd11cv001 aquib nasir razi 2sd11cv009 dibyajyoti sarma 2sd11cv020 kamlesh kumar 2sd11cv031 8th semester b. Properties of concrete with ground granulated blast furnace.
Ggbs also possesses better chloride resisting properties with a finer pore structure as compared to opc cement bamforth, 1995. Properties of concrete containing ground granulated blast furnace. It is well known that for a given replacement level with mineral admixtures, the earlyage properties of highstrength concrete are in. The granulated slag is ground to desired fineness for producing ggbs.
Experimental study on partial replacement of cement by flyash and ggbs syed asif ali1 professor shaik abdullah2 1p. 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. Evaluation of water absorption and sorptivity properties. Ground granulated blast furnace slag has been constantly in use as cementitious replacement for sustainable infrastructure. Experimental study on partial replacement of cement by flyash and ggbs syed asif ali1 professor shaik abdullah2. Effect of ground granulated blastfurnace slag on the hydration and properties of cement paste advances in cement research ice publishing is part of the institution of civil engineers. Protective clothing should be worn which ensures that ggbs or any ggbswater mixture eg, concrete or mortar, does not come into. Ggbs ground granulated blastfurnace slag is perfect for use in concrete applications and large pours.
Nov 01, 2014 the two images above show colour difference between concrete that contains ggbs and that does not contain ggbs on a median barrier in tipperary. The mineral admixture such as fly ash, silica fume. The physical properties of the slag have to be in accordance with the requirements for. Ggbs reduces the risk of sulfate attack on the concrete. Unsafe structuresdamage to public or neighbours properties bca or other. Durability of concrete is an important factor considered for structures. The mix design was done to obtain a concrete mix control mix of grade m40. Experimental analysis of partial replacement of cement by. What is the advantage of using ggbs as replacement of. Effect of ggbfs of durability properties of concrete is discussed in this article.
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