The wood ash was dried in the oven at 64.5 °C for 24 h and sieved with a 500 μm sieve before grinding . Then it was ground using a planetary ball mill at a rotation speed of 500 rpm, with a ball-to-powder ratio of 5. ... Ground granulated blast furnace slag (GGBFS) was obtained from SweCem (Helsingborg, Sweden). The ... SS and SH …
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In this study, two different ultra-fine ground granulated blast furnace slag referred to as GS (i.e., by dry-winnowing method) and WS (i.e., by wet-grinding method) were obtained, and the ...
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a r t i c l e i n f o Article history: Received 27 August 2015 Received in revised form 28 November 2015 Accepted 22 December 2015 Keywords: Blast furnace slag Fresh properties Hardened properties Durability …
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Ground granulated blast furnace slag is an eco-friendly material with regard to its production process and usage. 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 …
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After grinding, BFS slurry is divided into three parts, part of it is used to measure the particle size distribution and zeta potential, part of it is filtered for morphology property, structure–property and ions dissolution property, the remainder slurry with designed proportion (as shown in Table 3) is mixed with cement to make BFS-cement …
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To improve the properties of ground granulated blast furnace slag (GGBS) and utilize ground granulated blast furnace slag efficiently, this study investigates the effect of fineness on the hydration activity index (HAI) of ground granulated blast furnace slag. The hydration activity index of GGBS with six specific …
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The current study evaluated the effects of ultrafine granulated blast furnace slag (GBFS) on the compressive strength development of Portland cement mortar. ... The previous studies investigated the fine or ultrafine grinding of fly ash, granulated blast furnace slag (GBFS), and ... same thermal mass as the tested specimens was put in …
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Ground Granulated Blast Furnace Slag (GGBS), a by-product of the iron industry produced by quenching molten slag, has cement's chemical composition. About 530 million metric tonnes of GGBS are ...
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Blast furnace slag is nonreactive in a high alkali environment, such as concrete and soils. Blast furnace slag concrete can be reliably pumped when the slag is supplied to the ready-mix production in a saturated condition. Use of the cementatious properties of ground granulated blast furnace (GGBF) slag was reported as early as 1774. GGBF slag ...
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Table 2 compares the composition of a typical ground granulated blast-furnace slag to that of a typical Type I Portland cement, a typical Class C fly ash and a typical Class F fly ash. You will note that the GGBFS and the two fly ashes have the same kinds of oxides as the cement, which means that when GGBFS or fly ash is added to concrete ...
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At present, although the comprehensive utilisation rate of domestic blast furnace slag is more than 80%. However, the blast furnace slag treatment is …
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The granulated blast-furnace slag was ground in a ball mill to reach two fineness values of 3489 cm 2 /g (SA) and 4630 cm 2 /g (SB). In conclusion, coal fly ash and ground granulated blast-furnace slag fulfill the general requirements set out by the European standard EN 197-1 regarding the characteristics of the cement constituents.
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Granulated Blast Furnace Slag is a non-metallic by-product produced during the process of Iron making. It primarily consists of silicates, alumino-silicates, and calcium-alumina-silicates. Due to strict process & quality control from generation to dispatch ensure IS 12089, 1987 is far exceeded.
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Durability Properties of Geopolymer Concrete Containing Ground-Granulated Blast Furnace Slag and Black Rice Husk Ash January 2021 DOI: 10.1007/978-981-15-9162-4_22
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Steel slag and GBFS are wastes generated during the steel and iron smelting process, characterized by their considerable production rates and extensive …
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eGC 2007-11 November - #2fishygirl on Scribd | Scribd. Nov 11, 2007 · South Africa 's Exxaro to buy ... The hot gas needed to dry the granulated blast furnace slag, ... but the number of granulated blast furnace slag grinding plants in South ...
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The BFS is quenched with water to form granulated blast furnace slag (GBFS) and is then dewatered and dried before being sent to a grinding facility where the final …
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2. Experimental programme 2.1. Materials 2.1.1. Ground granulated blast furnace slag Ground granulated blast furnace slag (GGBS) was obtained from YTL Cement Marketing Sdn Bhd, Malaysia. The slag activity index of GGBS …
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To improve the properties of ground granulated blast furnace slag (GGBS) and utilize ground granulated blast furnace slag efficiently, this study investigates the effect of fineness on the ...
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Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Blast-furnaces are fed with controlled mixture of iron …
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2.2 Sample preparation. The sample preparation process is shown in Fig. 3.The PS and GBFS were dried prior to specimen preparation and then dry mixed using a JJ-5 planetary mixer according to the ratios in Table 2.Then the alkali activator and ionized water were poured into JJ-5 planetary mixer to prepare mortar according to Chinese …
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Few researchers have published journals regarding GGBS-blended concrete. Ground granulated blast furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product 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 …
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Investigations were carried out on the suitability of granulated blast furnace slag as a mold material for either full or partial replacement of existing silica sand in the foundry industry. The sodium silicate-CO2 process was adopted for evaluating the same. A series of sand tests were performed on silica sand and slag individually and in …
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Ground Granulated Blast Furnace Slag (GGBS), a by-product of the iron industry produced by quenching molten slag, has cement's chemical composition.
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Blast furnace slag is a byproduct acquired in the production of pig iron in the blast furnace and is involving essentially of silicates and alumino-silicates of calcium and of other bases, which is developed in an igneous condition …
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Power consumption: 10 kWh/t dry slag (WBCSD, 2002;Ruhmer, 1992) Fuel consumption: 300 MJ/t dry slag (calculation based on ten per cent moisture and 20 per cent heat loss from dryer -similar fuel ...
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With respect to the mechanical properties, durability and thermal behavior, ground-granulated blast-furnace slag (GGBS) delineates a rational way to develop sustainable cement and concrete.
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Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. ... Atis and Bilim investigated the compressive strength of ground granulated blast-furnace slag concrete under dry and wet curing conditions. Total of 45 ... Portland blast furnace cements—a case for separate grinding of slag. …
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3. Loesche technology – always a step ahead Grinding of cement clinker and granulated blast furnace slag in roller grinding mills (vertical airswept grinding mills) is a technology introduced by Loesche. The first use of a Loesche mill, with a grinding track diameter of only 1.1 metres, was used as long ago as 1935. However, the breakthrough …
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Steel slag and GBFS are wastes generated during the steel and iron smelting process, characterized by their considerable production rates and extensive storage capacities. After grinding, they are often used as supplementary cementitious materials. However, the intrinsic slow hydration kinetics of steel slag–GBFS …
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