Blast furnace slag in historic mortars of Bergslagen, Sweden Jan Erik Lindqvist1, Kristin Balksten2, Birgit Fredrich1 (1) RISE CBI, Ideon Lund, janerik.lindqvist@ri.se, Birgit.fredrich@ri.se (2) Conservation, Uppsala University, Campus Gotland, kristin.balksten@konstvet.uu.se Abstract Water cooled granulated blast furnace slag is today commonly used as a binder mixed with cement. 0000112635 00000 n However, beyond 70% slag incorporation, early strength gain of PSC is meagre because of its low reactivity. 0000012430 00000 n 0000108460 00000 n 0000112172 00000 n 0000011697 00000 n 0000103371 00000 n Granulated blast-furnace slag was prepared from Isfahan steel complex located in Isfahan province, Iran. 0000012039 00000 n 0000012185 00000 n Blast furnace slag (BFS) is a by-product from iron production in blast furnaces, which are fed by a mixture of iron-ore, coke and limestone. 0000114184 00000 n 0000017796 00000 n 0000110185 00000 n The molten slag at a temperature of about 1500°C 0000105477 00000 n 0000112839 00000 n Then, in 1983, the Japan Society of Civil 0000058191 00000 n These operate at a temperature of about 1500 degrees centigrade and are fed with a carefully controlled mixture of iron ore, coke and limestone. 0000104508 00000 n 0000116193 00000 n 0000008814 00000 n 0000102436 00000 n 0000117535 00000 n 0000010650 00000 n 0000106035 00000 n 0000113508 00000 n 0000073621 00000 n 0000110630 00000 n 0000119326 00000 n This slag goes on accumulating at the r a t e of nearly eight millions of tons per annum, its bull 0000011941 00000 n Use of Blast Furnace Slag Aggregate in Concrete K.G. GGBS being a waste material, it needs proper method for disposal. 0000012625 00000 n 0000011355 00000 n Blast-furnace slag is defined by the American Society for Testing and Materials as "the non-metallic product consisting essentially of silicates and alumino-silicates of calcium and other bases that is "developed in a molten condition simultaneously with iron in a blast furnace." 0000058510 00000 n BB was blended cement with cement replacement levels of 30%–60% ground granulated blast furnace slag for mitigation of alkali–silica reaction. 0000013013 00000 n 0000005715 00000 n 0000019436 00000 n 0000007886 00000 n 0000120853 00000 n 0000106347 00000 n Appendix A contains a list of TAG members and Appendix B gives its terms of reference. 0000089459 00000 n The granulated blast furnace slag may be used to make blast furnace slag cement either by being interground with the Portland cement clinker or by grinding the blast furnace slag separately and then blend- blast-furnace slag cement (BB). 0000118004 00000 n 0000012381 00000 n 0000041434 00000 n 0000102902 00000 n 0000103701 00000 n 0000011550 00000 n 0000102144 00000 n A Technical Advisory Group (TAG) comprised of 0000058071 00000 n 0000103004 00000 n 5.3 WEIGHMENT – One filled bag from each nozzle shall be taken at random twice in each shift of operation and weight checked in case of electronic packers with recorders. 0000116867 00000 n 0000119795 00000 n Description. SLAG Ground granulated blast-furnace slag (Fig. 0000010212 00000 n 0000009099 00000 n 0000101914 00000 n Use of blast furnace slag in concrete is encouraged from an environmental perspective. 0000008129 00000 n 0000011306 00000 n 0000117312 00000 n Ground granulated slag, combined with portland cement in the mixer, is the subject of discussion at this Forum. 0000008325 00000 n 0000107907 00000 n 0000011745 00000 n 0000012479 00000 n 0000008423 00000 n 0000113050 00000 n 0000102614 00000 n 0000018769 00000 n 0000015725 00000 n 0000057966 00000 n IN VANADIUM - TITANIUM BLAST FURNACE SLAG METALURGIJA 59 (2020) 1, 7-9 B 2 O 3 influent on the viscosity of the high titanium slag As Figure 6 showed, the slag viscosity can be de-creased when the content of the B 2 O 3 was increased, because the melting point of the B 2 O 3 was low to 450 0000011257 00000 n Abstract Three new ceramic batches with no traditional fluxes and 30, 50 and 70 wt.% blast furnace slag were studied. Blast Furnace Slag as a by – product Background The status of Blast Furnace Slag (BFS) has been disputed with industry for a number of years. 0000104598 00000 n Slag is referred as granulated slag when subject to grinding accord-ing to the standard NF IN 15167-1 [15]. Iron Blast Furnace Slag Aggregate for Concrete” in 1977 and fine BF slag aggregate as JIS A 5012 “Water Granulated Iron Blast Fur-nace Slag Aggregate for Concrete” in 1981. 0000005928 00000 n The blast furnace gas (BFG) generated in the BF is cleaned through a series of steps before transporting it to the BFG Holder. 0000041691 00000 n Enter the email address you signed up with and we'll email you a reset link. 0000111288 00000 n 0000106653 00000 n 0000005089 00000 n 0000103272 00000 n 0000007982 00000 n 0000058284 00000 n The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. 0000107698 00000 n Academia.edu no longer supports Internet Explorer. Blast furnace slag sand (BFS5, BFS1.2) was used. 0000118440 00000 n 0000062050 00000 n 0000114844 00000 n 0000058941 00000 n 0000008178 00000 n 0000111074 00000 n 0000009147 00000 n 0000105246 00000 n 0000008716 00000 n Thereafter, the two were unified as JIS A 5011-1 “Slag Aggregate for Concrete, Part 1 Blast Furnace Slag Aggregate”. %PDF-1.3 %���� 0000014927 00000 n Such enhancement other than bringing down the carbon footprint of cement conserves natural resources. 0000109129 00000 n 0000107255 00000 n 0000104265 00000 n The prepared slag was firstly ground in a laboratory ball mill to attain a Blaine specific surface area of 340 m2/kg. In the process, the iron ore is reduced to iron while all remaining materials form the slag, which is tapped off as a molten liquid and cooled. 0000103173 00000 n In 2006, BFS was put forward for consideration by the Waste Protocols Project which aimed to establish the point at which BFS ceased to be waste. 0000106230 00000 n 0000102004 00000 n 0000012136 00000 n New research is being carried out to find new ways for waste utilization. 0000011452 00000 n 0000103953 00000 n It results in the production of gas com- pounds (blast furnaces gas), of liquid (slag cast-iron), and of solid (gas dust). 0000111753 00000 n 0000107091 00000 n 0000117097 00000 n 0000011990 00000 n 0000017025 00000 n 0000011892 00000 n trailer << /Size 255 /Info 16 0 R /Root 19 0 R /Prev 133506 /ID[<6ae094c3f17acdd2f218efd02d392431><82f24cdb793c4e674ff4755b81bddc0f>] >> startxref 0 %%EOF 19 0 obj << /Type /Catalog /Pages 15 0 R /Metadata 17 0 R /PageLabels 14 0 R >> endobj 253 0 obj << /S 63 /L 554 /Filter /FlateDecode /Length 254 0 R >> stream 0000017003 00000 n 0000013034 00000 n 0000008765 00000 n 0000115738 00000 n 0000112408 00000 n Generally, blast furnace slag does not represent significant environmental problems when used as a construction material above the ground water table. The chemical composition and the specific surface area of the blast-furnace slag are given in Table 1 and Figu- 0000111524 00000 n Granulated blast furnace slag (GBFS) has a morphological form of clear-colour sand. 0000103482 00000 n Granulated blast furnace slag (GBF slag) is obtained by quenching molten iron slag (a byproduct of iron making) from a blast furnace in water or steam, to produce a glassy, granular product. 0000089561 00000 n 0000108086 00000 n An industrial blast furnace. 0000016710 00000 n 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. 0000011403 00000 n 0000008031 00000 n 0000008961 00000 n 0000102380 00000 n 0000115307 00000 n 0000012770 00000 n 0000008471 00000 n The blast furnace is the primary means for reducing iron oxides to 0000104973 00000 n 0000042003 00000 n 0000116630 00000 n 0000061826 00000 n 0000111959 00000 n 0000008863 00000 n Slag is primarily composed of CaO, SiO 2, aluminum oxide (Al 2 O 3), and magnesium oxide (MgO). 0000012332 00000 n 0000009995 00000 n 0000106545 00000 n 0000110857 00000 n GBFS shares the same main chemical compounds (mainly SiO 2,CaO,Al 2O 3, MgO) [2,11, 16–20] as ordinary Portland cement [20–23]. 0000058447 00000 n 0000118914 00000 n 0000106962 00000 n 0000115518 00000 n 0000012722 00000 n 0000012283 00000 n 0000058368 00000 n Testing of hardened mortars, a process of questioning and interpreting. H���?HQƿy��z�� {r,� �\��8���$����CYI�WXX�`��&`wkg%�&�*#V�v�*�N��ʼE�(>���f>�@�Ҁ�` ���}F�� �z#^�. blast furnace” [1]. 0000117774 00000 n 3. 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. 0000012576 00000 n 0000011843 00000 n 0000105675 00000 n 0000106782 00000 n 0000103611 00000 n 0000019058 00000 n 0000102812 00000 n 0000080283 00000 n 0000120205 00000 n 0000008080 00000 n 0000114628 00000 n Steel slag produced from basic oxygen and electric arc furnaces accounted for the remainder of sales. Sorry, preview is currently unavailable. 0000113727 00000 n 2. 0000012234 00000 n Hydration kinetics and products of MgO-activated blast furnace slag Solmoi Parka,b, Hyeong Min Parkc,d, H.N. 0000005182 00000 n 0000109328 00000 n 0000008276 00000 n HOW A BLAST FURNACE WORKS Introduction The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". 0000012965 00000 n Top Blast Furnace Slag suppliers in world are South Africa (35%), Japan (13%) and India (7.4%). 0000013988 00000 n 0000019547 00000 n 0000019080 00000 n 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. 0000109987 00000 n 0000115077 00000 n Blast Furnace and Process Description:- Iron blast furnace is a vertical shaft, which is used to melt the iron ore and to produce hot metal by heat exchange and chemical reaction.The burden charge consisting of iron oxide, flux and coke and it provides through the throat from the top of the furnace. 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