Synonyms: Slag cement, ground granulated blast furnace slag (GGBFS), granulated blast furnace slag (GBFS), Slag Product Form: Solid / powder or granular Intended Use of Product: Ground granulated blast furnace slag is used as an additive with portland cement in combination with water and aggregates to form concrete. Key Words 18. A Technical Advisory Group (TAG) was set up to bring together representatives from the Environment Agency, WRAP and industry. Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. It is Taizo Kuroda who gave the Japanese name “kouro se-mento” to PBFSC in English and Hochofen zement in German. Blast furnace slag is formed in a continuous process by melting lime (and/or dolomite), the waste from carbon sources and non-metallic components of iron load (e.g. to metallurgical slag produced in modern blast furnaces (i.e. Blast furnace slag is a by-product of iron manufacturing, via thermochemical reduction, in a blast furnace. �o826�k��xS�a�(��x�;o���u����EZ���'8�?^����E�y�p�|u������:F0DF�eȇ�'P��(>v�8Y'E_�����=�mˀ ��@�g�(���5R�=W?Ռ���C���;6��qj:�����E�4W�C_�8�KiX�gr�����@C�' � C��3B C�&. Cement and Concrete Research 31 (2001) 1403 – 1409 Reactivity of blast-furnace slag in Portland cement blends hydrated under different conditions J.I. 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. <> 6. As requested in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004). Use of Blast Furnace Slag in Road Construction 23. Generator . endobj 4� � c����� �$�b���X���N����� 2, 3)History of Portland Blast Furnace Slag Cement 3.1 Birth of portland blast furnace slag cement As mentioned earlier, PBFSC was developed in 1910—nine years after the government-managed Yawata Works was put into op-eration. A process and apparatus by which blast-furnace slag can be added to the feedstock materials fed into the feed-end of a rotary cement kiln to form cement clinkers. The ingredients, proportions and physical requirements of Type IS cement are listed in ASTM C595, “Standard Specification for Blended Hydraulic Cements.” Chemical Admixtures and Ground Granulated Blast-Furnace Slag blast-furnace slag and fly ash has been reported in many research works [5,6]. Blast-furnaces are fed with controlled mixture of iron-ore, coke and limestone, and operated at a temperature of about 1,500°C. 2 0 obj rar�@Ќ���d�1�(I�Q3��=,|�7Y�scs��ߣ�X 8��O���0l�mx4ޥ�g��Cp��P��_-�N.�q���i��=��������|�����G�! Mechanically activated granulated blast furnace slag was used in the range of 20% - 75% to replace clinker in Portland slag cement. Go´meza, K.K. When iron-ore, coke and limestone melt in the blast furnace, two products are produced—molten iron, and molten slag. Hydration kinetics and products of MgO-activated blast furnace slag Solmoi Parka,b, Hyeong Min Parkc,d, H.N. Slag cement, or ground granulated blast furnace slag (GGBFS), has been incorporated into concrete projects in the U.S. for over a century to improve durability and reduce life cycle costs. Slag was processed by 28 companies servicing active iron and steel facilities or reprocessing old slag piles at about 129 processing plants (including some iron and steel plants with more than one slag-processing facility) in 33 States, including facilities that import and grind unground slag to sell as ground granulated blast furnace slag (GGBFS). Blast furnace slag and steelmaking slag are by-products produced in steel plants and legally approved as slag silicate fertilizers. The blast furnace slag cement is used in the world in order to increase the strength of the concrete and reduce the costs. <> 3. blast furnace slag is separately ground and then mixed with the cement. The total content of blended materials could increase if two additives were used. Properties of Blast-Furnace Slag Cement Concrete Subjected to Accelerated Curing @inproceedings{Zulu2019PropertiesOB, title={Properties of Blast-Furnace Slag Cement Concrete Subjected to Accelerated Curing}, author={Bernard A. Zulu and S. Miyazawa and N. Nito}, year={2019} } DOI: 10.3390/infrastructures4040069 Corpus ID: 209544388. Use of activated slag resulted in a remarkable increase in strength vis-à-vis slag cement. Ground granulated blast-furnace slag (GGBFS) has latent hydraulic properties that could be activated using suitable activators [4]. The blast-furnace slag is crushed and screened to provide blast-furnace slag particles having particles with a predominant size of up to a maximum diameter of substantially 2" or less. Tata Steel IBMD is one of the leading suppliers of GGBS and the product has been used in construction of many iconic structures in India. Slag cement is often referred to as “ground granulated blast-furnace slag” (GGBFS). iron ore, iron sintering). The records of weighments shall be maintained. The molten slag at a temperature of about 1500°C �h�r�� 1.4 Blast furnace slag (BFS) is one of the waste streams being addressed by the BREW Waste Protocols Project. Blast Furnace Slag in Cement and Concrete’ 1,10. The glass content, which is a significant factor to evaluate the performance of BFS as a replacement material for Portland cement, was investigated using the X‐ray diffraction method. MATERIALS Paste specimens were prepared from BFS cement with a slag component of 67% (CEM III/B 42,5 N HSR LH) and ordinary Portland cement (CEM I 32,5 R), both provided by the Dutch ENCI cement fabricator. � �����H�A{���S�]�n�qc��c�f�l��گ������*;q��qp�[������� ��ZaG��X�����-D�{}�AG�C�T���Z��.�.0c�#s�'�l���E��_+�ƥE�'�'��b��?����_Sf�J���gW�$�l����?��s�o����u���˛���*�7�'��z�aV�ԑ̪6�%���n��E��c@���^��k�n߄�ZP��;��>�7���_�ܠ�d'C��XΑ��A��e��m��f�^���C4�`��3����(!G�0_P ]�^��*�����T�h=�̵Ð4 �'���h���i In Building Materials in Civil Engineering, 2011. Mechanically activated granulated blast furnace slag was used in the range of 20% - 75% to replace clinker in Portland slag cement. Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. Granulated Blast Furnace Slag For the blast furnace slag cement, the three types shown in Table 1 are specified in JIS R 5211: Blast Furnace Slag Cements”. In cement paste with a high percentage of blast furnace slag, self-healing of cracks can be achieved more efficiently than in ordinary Portland cement concrete, again contributing to durability [45]. Structural fill Two major uses of GGBS [2] are in the production of quality-improved slag cement, namely Portland Blast furnace cement (PBFC) and high-slag blast-furnace cement (HSBFC), with GGBS content ranging typically from 30 to 70% and in the production of ready-mixed or site-batched durable concrete. stream As there are many types of slag, it should be noted that the term ‘slag’ used throughout this publication refers specifically . The general-purpose cement that is available on the market is Type B (hereinafter “BB”) containing 40%–45% ground granulated blast furnace slag. Nippon Steel & Sumitomo Metal Corporation By reducing the limestone and fuel used for the production of cement, the CO₂ generation is reduced by 320 Kg per 1 ton of cement. Academia.edu no longer supports Internet Explorer. endobj Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. blast furnace slag and not basic oxygen steel slag or electric Distribution Statement Ground granulated blast furnace slag, concrete mixes, slag, GGBFS, high range water reducer, HRWR, portland cement, 3. l0�� ��g��(�U�Z Pastes were prepared with a water-cement-ratio (w/c) of 0.45 by weight with common tap water. Top Blast Furnace Slag suppliers (exporters) by country: According to international trade statistics provided by the UN, in 2018, the world suppliers of "Blast Furnace Slag" supplied more than $706 million (according to the external trade statistics of 59 countries).It was $632 million in the previous year (according to the merchandise trade statistics of 67 countries). Among its measurable benefits in concrete are better workability and finishability, higher compressive and flexural strengths, and improved resistance to aggressive chemicals. DOI: 10.3390/infrastructures4040069 Corpus ID: 209544388. 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. Enter the email address you signed up with and we'll email you a reset link. The general-purpose cement that is available on the market is Type B (hereinafter “BB”) containing 40%–45% ground granulated blast furnace slag. Such enhancement other than bringing down the carbon footprint of cement conserves natural resources. Cement&Clinker - Top Blast Furnace Slag suppliers (+Website of … Manufacture components: metakaolin MK-750, blast furnace slag, volcanic tuffs (calcined or not calcined), mine tailings and alkali silicate (user-friendly). Hiraskar and Chetan Patil Abstract-The Iron industries produce a huge quantity of blast furnace slag as by–product, which is a non–biodegradable waste material from that only a small percentage of it is used by cement industries to manufacture cement. Ground granulated blast-furnace slag (GGBFS) has latent hydraulic properties that could be activated using suitable activators [4]. Portland blast furnace slag cement features excellent durability, with greatly enhanced long-term strength and less chloride migration. The activation of blast-furnace slag with alkaline liquids (e.g., NaOH or water glass) to produce alkali-activated slag cement Blast furnace slag is a by-product of iron manufacturing, via thermochemical reduction, in a blast furnace. Experimental Behavior of Reinforced Concrete with Partial Replacement of Cement with Ground Granulated Blast furnace Slag M. 1Ramalekshmi , R. Sheeja2, R. Gopinath3 1,2,Final Year Student, Department of Civil Engineering , Sathyabama University, Chennai, India. Slag cement is often referred to as “ground granulated blast-furnace slag” (GGBFS). The records of weighments shall be maintained. 1 0 obj Research on the future availability of fly ash and granulated blast furnace slag for UK cement manufacturing. blast-furnace slag cement. Published 20 September 2017 From: ... PDF, 389KB, 35 pages. However, beyond 70% slag incorporation, early strength gain of PSC is meagre because of its low reactivity. Ground Granulated Blast Furnace Slag (GGBFS) is a fine glassy granule which encompasses cementitious possessions. 4 0 obj 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. Appendix A contains a list of TAG members and Appendix B gives its terms of reference. Activation of Ground Granulated Blast Furnace Slag Cement by Calcined Alunite Hyung-Seok Kim1, Joo-Won Park2, Yong-Jun An3, Jong-Soo Bae 2and Choon Han;* 1Minerals & Materials Processing Division, Korea Institute of Geoscience & Mineral Resources, Daejeon, Korea 2Department of Chemical Engineering, Kwangwoon University, Seoul, Korea 3Department of Resource Recycling Engineering, … Geopolymeric make-up: Si:Al = 3, in fact solid solution of Si:Al=1 Ca-poly(di- 3-5), also called slag cement, is made from iron blast-furnace slag; it is a nonmetallic hydraulic cement consisting essentially of sili-cates and aluminosilicates of calcium developed in a molten condition simultaneously with iron in a blast furnace. 3Assistant Professor, Department of Civil Engineering, Sathyabama University, Chennai, India. In this study, granulated and air cooled blast furnace slags were compared for chemical Blast furnace slag is formed in a continuous process by melting lime (and/or dolomite), the waste from carbon sources and non-metallic components of iron load (e.g. Yoonb, Joonho Seob, Cheol-Min Yangd, John L. Provise, Beomjoo Yangc,⇑ a Department of Civil Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea bDepartment of Civil and Environmental Engineering, Korea Advanced Institute of … Granulated Blast Furnace Slag For the blast furnace slag cement, the three types shown in Table 1 are specified in JIS R 5211: Blast Furnace Slag Cements”. Using the same admixtures, the properties of the blended cement with 70% additives could reach the standard of 525-grade slag cement according to GB. Ordinary Portland cement (Density: 3.15g/cm3, Blaine fineness: 3,300cm2/g) and ground granulated blast furnace slag (Density: 2.89g/cm3, Blaine fineness: 4,150cm2/g) are used as binder.As a fine aggregate, crushed sand (Density in saturated surface dry condition: 2.65g/cm3, Water The activation of blast-furnace slag with alkaline liquids (e.g., NaOH or water glass) to produce alkali-activated slag cement Once corrosion has started, steel in concrete with additional cementing materials may have a decreased rate of corrosion. Details. By using our site, you agree to our collection of information through the use of cookies. The slag and clinker were acti-vated separately using a mill and mixed to prepare ce-ment formulations [4]. Use of Blast Furnace Slag Aggregate in Concrete K.G. blast furnace slag cement. 4.2.3 Portland Blast Furnace Cement. <> Augmenting granulated blast furnace slag (GBFS) content in Portland Slag Cement (PSC) beyond the conventional limit of 70% is the stimulus for this study. The performance of BFS obtained from dry granulation must be assessed. In this study, slag cement (SC) is used to prepare different slag cement mortar (SCM) mixes to study mortar microstructure perspectives, physiochemical properties, mechanical properties and durability performance. Escalantea,*, L.Y. Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. GGBS being a waste material, it needs proper method for disposal. A typical combination is 50% GGBS with 50% Portland cement, but percentages of GGBS [4] anywhere between 20 and 80 % are commonly used. cement production or (partial) substitution of cement in concrete production reduces these CO2 emissions, especially if material is used which is seen as a waste of other processes, such as Fly Ash (FA) from coal power plants and Granulated Blast Furnace Slag … Concrete durability largely depends on the possible corrosion of reinforcing bars in an aggressive environment, resulting in cracking and spalling of concrete. However, the reliability of their efficacy has been low due to their unstable silicate solubility. Production of Portland blast-furnace slag cement began in 1910, and the Japanese national standard for Portland blast-furnace slag cement (JES 29) was formulated in 1926.some of the study has been done in past which summa-rized as: 1. Portland blast furnace cement (simply called slag cement) refers to the hydraulic binding material ground by mixing Portland cement clinker, granular blast furnace slag, and appropriate amount of gypsum, code-named P • S.The mixed amount of granular blast furnace slag in cement is 20% ~ 70% by weight. The slag and clinker were acti-vated separately using a mill and mixed to prepare ce-ment formulations [4]. The replacement of cement with GGBS will reduce the unit water content necessary to obtain the same slump..This reduction of unit water content will be more pronounced with increase in slag content and also on the fineness of slag. iron ore, iron sintering). <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S>> While this is a new method of use in this country, the cementitious material is not new: it is an improved Portland blast-furnace slag cement. Compared to the blended cements used in the past, the "new" blast-furnace slag and fly ash has been reported in many research works [5,6]. As requested in 2001 by slag cement manufacturers and the Slag Cement Association, the American Concrete Institute officially reviewed and changed the terminology from GGBFS to slag cement (ACI Committee 233, 2004). 5.3.1 For packing of Ground granulated blast furnace slag in bulk cement terminal weighment of hourly check of mass of drums also shall be done in addition to weighment of bags mentioned in para 5.3 above. slag is a long one. The pozzolans used were an ASTM C 618 Class F fly ash with a low lime content and a dry, densified silica fume. Sun, S.S., Zhu, G.L., Zhang concluded that the recy- ! 5.3.1 For packing of Ground granulated blast furnace slag in bulk cement terminal weighment of hourly check of mass of drums also shall be done in addition to weighment of bags mentioned in para 5.3 above. ]ľ��\$�B�~��W��#V�PĐ��hU{͏��+��_��u��LlRp[ԯ�"}�C>�R��]Q�(R��rGIq����J!���I�,��X�~��׷8vM�vt�U�n��ګ��2He �8/Ճ� H%�\t���㩫�*��v+o\����� �Y{b|��p���3T���Ŋ�l��&,O!��4�q��,Ky6�%VhI�J�QTUIl~�}(g���������ѓ� �d��H8^Ñ1Y�A�t0`[��d���R����,E�Zt��8�1�o�I Whenever water comes in direct contact with a solid material, the potential for leachate Slag cement, often called ground granulated blast-furnace slag (GGBFS), is one of the most consistent cementitious materials used in concrete. blast furnace during the manufacture of iron for steel production Cementitious mixes means blast furnace slag that has been mixed with general purpose cement, lime and other activators for use in bound applications, where the materials must be chemically bound together . 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Needs proper method for disposal products are produced—molten iron, and operated at a temperature of about 1,500°C % incorporation... Cement is often referred to as “ ground granulated slag, it needs proper method disposal! Via thermochemical reduction, in a remarkable increase in strength vis-à-vis slag cement is often referred to as “ granulated... And phosphorous slag ( BFS ) treatment, is the subject of discussion this. Suppliers ( +Website of … Abstract slag for UK cement manufacturing strength vis-à-vis slag cement is often referred to “., higher compressive and flexural strengths, and improved resistance to aggressive.! Your browser environment, resulting in cracking and spalling of concrete +Website of … Abstract in portland cement!, and operated at a temperature of about 1,500°C 389KB, 35 pages our site, you agree to collection!