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DOI / Corpus ID 237683766; Utilization of steel slag for cemented tailings backfill Hydration strength pore structure and cost analysis article{Xiao2021UtilizationOS title={Utilization of steel slag for cemented tailings backfill Hydration strength pore structure and cost analysis} author={Bolin Xiao and Zhenjiang Wen
·As part of our effort to preserve the environment the incorporation of ground granulated blast furnace slag GGBFS or fully replaced by alkali activated slag AAS as an alternative binder to OPC This concrete is environmental friendly and also eases concerns in energy usage raw material and manufacturing cost for the traditional concrete
·The water absorption and specific gravity were obtained as % and respectively After sieve analysis the sand sample conforms to zone III as per IS 383 2016 GGBS after grinding has a shape of the rounded orbit which provides mechanical ease of movement 1987 Specification for granulated slag for the manufacture of Portland
In Q3 2024 the European market for Ground Granulated Blast Furnace Slag GGBFS witnessed a similar trend observed in other regions reflecting a challenging pricing environment Similar to other region prices initially rose which declined in the latter half of the quarter Several factors contributed to this downward trend
·Based on the economic analysis autoclaved curing can offset the total costs by reducing the usage of slag and lowering raw material expenses demonstrating its cost effectiveness The obtained results can provide a theoretical foundation for the large scale application of alkali activated slag fly ash materials in civil engineering construction
·DOI / Corpus ID 139769755; Efficiency of wet grinding on the mechano chemical activation of granulated blast furnace slag GBFS article{Wang2019EfficiencyOW title={Efficiency of wet grinding on the mechano chemical activation of granulated blast furnace slag GBFS } author={Yingbin Wang and Xingyang He
·The commercial alkali activators could account for more than 50% of the cost for producing geopolymers Thus to lower the carbon footprint of geopolymer by avoiding the utilization of energy intensive commercial alkali activators a novel eco friendly geopolymer was synthesized from 100% solid wastes comprising red mud RM calcium carbide slag CS
·The Stormajor receives granulated slag direct from the Corus steel works in South Wales UK delivered by tipping truck for a new grinding plant operated by Civil and Marine Slag Cement The Stormajor comprises a Samson Surface Feeder to receive the material and a radial stacking boom to discharge direct to stockpile all mounted to a common
·Spontaneous combustion gangue SCG is often used as aggregate in traditional cemented paste backfill CPB for mine backfill but the activation of SCG is insufficient To stimulate the activity of SCG for the preparation of spontaneous combustion gangue granulated blast furnace slag backfill SGB a new CPB was prepared by activating SCG via a
·The main mineral composition of steel slag is olivine merwinite C 2 S C 3 S C 4 AF C 2 F RO phase CaO FeO MnO MgO f CaO and Fe Due to the presence of C 2 S C 3 S C 4 AF and C 2 F steel slag could show a weak cementitious performance which could be considered as supplementary cementitious material after processing However the bad grind
·The goal of the current study is to determine the dissolving effect of slag in water Five percentage values of slag were taken up for the study 0% % 5% 10% and 20% The study is based on two methods of mixing The first method is the traditional mixing process which involves addition of slag directly with other concrete proportions such as cement sand
·Efficiency of wet grinding on the mechano chemical activation of granulated blast furnace slag GBFS the residual mortar is passed through a sieve with pore size of 76 μm to obtain BFS cement paste for micro analysis Table 3 The drastic impact and shear forces acting on BFS granules during grinding lead to ruptured slag granules with
·1 Introduction Granulated blast furnace slag abbreviated GBFS is an industrial solid waste generated in the steelmaking process [1] [2] It is rich in CaO SiO 2 Al 2 O 3 in chemical compositions and the mineral phases of GBFS are mainly composed of glass phases [3] [4] Based on its chemical and mineral compositions GBFS has a good hydration activity
·The first upscan studying the behavior of the water granulated slag subjected to high energy grinding generates a C p curve that is including the endothermic glass transition and exothermic crystallization as seen in Fig 10 a Since the grinding study was performed on subsamples of the same granulated slag the differences between
·mortars and concretes Granulated slags can be ground to a desired particle size or surface area depending on the degree of activation needed and economic con siderations Water granulated slag seems to be less easily ground than Portland cement The pelletized slag because of its porous structure requires less energy to grind than granulated
Ground granulated blast furnace slag produced by pulverizing granulated blast furnace slag is mixed with Portland cement to produce Portland blast furnace slag cement Portland blast furnace slag cement is economical and environmentally friendly because it conserves resources and energy leading to reduction in CO 2 emissions
· History of Blast Furnace Slag The latent hydraulic reactivity of granulated blast furnace slag gbfs was discovered in 1862 by Emil Langen in Germany Lea 1971; Smolczyk 1978 The first use of slags in cements dates back to 1865 when in Germany a slag lime cement was commercially produced
·The production process of ground granulated blast furnace slag GGBS aims to produce products of the best grade and the highest yields However grade and yields are two competing objectives which can not be optimized at the same time by one single solution Meanwhile the production process is a multivariable strong coupling complicated nonlinear
·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 performance The tests also included the
·In order to realize the resourceful large scale and high value utilization of steel slag which is a bulk industrial solid waste and to reduce the use of cement based cementitious materials this study adopted the coupled excitation effect of sodium carbonate magnesium oxide desulfurization gypsum to excite steel slag based cementitious materials and it
·The increasing quantity of overburden OB removal and disposal in external dump needs proper management for active mining operation Coal consumption in thermal plants generates huge quantity of pond ash thus requires an alternative mode of ash disposal In this study attempt has been made to evaluate different geotechnical properties of OB pond ash
·Grinding is usually used to increase the specific surface area of steel slag to improve its activity However due to the large amount of hard to grind minerals in steel slag a large amount of energy is wasted in the grinding process Therefore the current investigation aims to remove the hard to grind minerals in steel slag as much as possible to explore the
· The Lhasa method RASA The Lhasa method RASA water granulated slag treatment system was developed by Nippon Steel Pipe and the British trading company RASA and was first applied on blast furnace No 1 at Fukuyama Steel Works in Japan [Citation 4] The principle of the RASA method is that after the blast furnace slag has been water
·Nojoukambari et al 2023 investigated the effect of the use of feldspar and ground granulated blast furnace slag GGBS as SCMs on the mechanical and durability properties of cement mortars In the study GGBS was incorporated to improve the mechanical and durability properties of the mortar cost and ecological analysis for the developed
·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 combination Three types of
5 ·Paper 10 Characterisation of Slag Rec dry granulated EAF slag Roberto Roberti Universitý degli Studi di Brescia Paper 11 Gebr Pfeiffer vertical roller mill MVR New levels of slag grinding York Reichardt Gebr Pfeiffer AG Paper 12 P84 needle felt blends as problem solvers in mill filters Dr Stefano Santorsola Evonik Fibres GmbH