"behaviour of iron ore concrete"

REDUCTION AND SWELLING BEHAVIOUR OF FIRED …

2012-5-11 · The present project work on "Reduction and Swelling Behaviour of Fired Iron Ore Pellets" was undertaken with a view to promote the effective utilization of iron ore and coal fines in sponge iron making. Presently, India has become the world leader in sponge iron production and the production of steel by DR-EAF

Effect of suction on the mechanical behaviour of iron ore ...

The effect of suction on the behaviour of iron ore has been studied from both physical and mechanical points of view. The porosity and the suction phenomena have been analysed using different experim...

ZETA POTENTIAL AND FLOCCULATION BEHAVIOUR ON …

2011-9-24 · BALASUBRAMANJ etaI-Zeta potential and flocculation behaviour on iron ore fines using magnafloc polymers 1. T W Healy, J Colloid Sci, 16(1961) 609 2. H R Kruyt, Colloid Science, Vol. r, Elsevier, New York, (1952) p 198 3. D W Fuerstenau, in Chemistry of Biosurfaces, (Ed.) M L Hair, Vol. !, Marcel Dekker, New York, (1971) 4. G A Glembotsl-:y, in Mineral Processing, (Ed.)

Separation Behaviour of Iron Ore Fines in Kelsey ...

2013-12-24 · Lump and fines ratios in Indian iron ore deposits are almost 50:50 (as shown in . Figure 1) but only 12.3% of these reserves belong to high grade category while 48% belong to medium grade, 26% to low grade and rest to unclassified categories [5]. Iron ore, range in size from less than 8 mm to 0.15 mm are designated as fines, whereas,

Reduction-Swelling Behaviour of Pellets Bearing Iron Ore ...

2013-7-18 · Self-reducing pellets containing iron ore and charcoal were reduced under argon at 1123, 1273, 1323, 1373, and 1423 K. The pellets were cold bonded with Portland cement. Pellets measuring 9.1 …

Effect of Reagents on the Rheological Behavior of an Iron ...

2012-1-2 · : Effect of Reagents on the Rheological Behavior of 40 an Iron Ore Concentrate Slurry The effect of sedimentation was negligible due to three factors: (i) the use of the overflow obtained after three rounds of 5 minutes of settling (particles under 10µm, about 12% w/w); (ii) the use of a decrease ramp of shear rate rather than

Mechanical Properties of Iron Ore Tailings Filled ...

2013-12-24 · of iron ore tailings. 4. Results and Discussion . Tables 1-3. and . Figures 1-3. and . 5. were obtained from the uniaxial tensile test carried out on the produced com- posites. Tables 1-3. show the tensile stress-strain results for 150, 212 and 300 µm particle size iron ore tailings reinforced polypropylene composites (ITR-PPC) while . Figure 1

High-rate behaviour of iron ore pellet

High-rate behaviour of iron ore pellet Gustaf Gustafsson 1, a, Hans-Ake H˚ ¨aggblad,P¨ar Jons ´en 1, and Masahiro Nishida 2 1 Lulea University of Technology, Division of Mechanics of Solid ...

Research Article The Influences of Iron Ore Tailings as ...

2019-7-31 · The Influences of Iron Ore Tailings as Fine Aggregate on the Strength of Ultra-High Performance Concrete ZhigangZhu,BeixingLi,andMingkaiZhou State Key Laboratory of Silicate Materials for Architecture, Wuhan University of Technology, Wuhan, China Correspondence should be addressed to Beixing Li; [email protected] ReceivedMarch ; Accepted August

Influence of Iron Ore Characteristics on Penetrating ...

Influence of Iron Ore Characteristics on Penetrating Behavior of Melt into Ore Layer Jun OKAZAKI, Kenichi HIGUCHI, Yohzoh HOSOTANI1) and Kazuyuki SHINAGAWA2) Environment & Process Technology Center, Nippon Steel Corp., Shintomi, Futtsu 293-8511 Japan. 1) The Iron and Steel Institute of Japan, Kanda-Tsukasacho, Chiyoda-ku, Tokyo 101-0048 Japan.

Swelling behavior of iron ore pellet reduced by H2–CO ...

2015-1-1 · 1. Introduction. Volume swelling of iron ore pellets accompanied with strength decrease appears commonly during reduction. In order to ensure permeability and operation in shaft furnace smelting processes, the maximum swelling index of pellet is always required to be no more than 20%, .Numerous researches have been done to reveal the swelling behavior of iron ore pellets.

Partial Replacement of Sand and Cement by Iron Ore …

2017-11-17 · Keywords: concrete, cement, sand, iron ore slime, compressive strength *Author for Correspondence E-mail: [email protected] INTRODUCTION Iron ore slime is a waste material generated after beneficiation of iron ores. Due to limited iron ore resources and depleting iron ore, iron ore producers are emphasizing on recovery and value addition ...

Utilisation of iron ore tailings as aggregates in concrete

2021-2-12 · used. For the tailings concrete being studied, iron ore tailings were used together with the cement to make the new concrete. The iron ore tailings were obtained from Mount Gibson Iron Extension Hill Operations in Perenjori of Western Australia (WA). The particle–size distribution curve of the original tailings as obtained is shown in Figure 1.

The Mechanical Behaviour of Panzhihua Iron Tailings

2021-4-1 · Draft 1 The Mechanical Behaviour of Panzhihua Iron Tailings W. Li1* and M. R. Coop2 1 Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong 2 University College London, UK; formerly City University of Hong Kong, Hong Kong * Corresponding author ABSTRACT Safety problems have concerned many researchers studying tailings dam in recent years,

Forming Behavior of Fine Particulate Matters during Iron …

2020-8-23 · Iron and steelmaking process, especially the iron ore sintering process is regarded as a major fixed generation source of PM2.5. This study aims to obtain fundamental knowledge on the grain size and chemical composition of PM2.5 formed during ...

Utilizing Iron Ore Tailing as Cementitious Material for ...

It is found that employing iron ore tailings to replace cement can optimize the mechanical properties of ordinary concrete [11,31,40], and the feasibility of adding IOT into ordinary concrete is ...

TO STUDY THE REDUCTION & SWELLING BEHAVIOUR …

2018-7-10 · Iron-ore production was around 181 million tons in the year 2006-07 growing by 9% over the previous years since then. The share of Lumps in the total iron-ore production has been approximately 40% and the rest of it is accounted for by concentrates and Fines. However the share of Lumps in the total Iron-ore mined varies across the

Effect of suction on the mechanical behaviour of iron ore ...

The effect of suction on the behaviour of iron ore has been studied from both physical and mechanical points of view. The porosity and the suction phenomena have been analysed using different experimental techniques. Uniaxial compressive tests on partially saturated samples have shown that the suction is responsible for strength and cohesion ...

CHARACTERIZATION OF PROPERTIES AND REDUCTION …

2010-4-12 · In selecting iron ore for iron and steel industries, the properties which need to be considered are tumbler, abrasion and shatter indices, porosity, chemical composition, loss on ignition, reduction behaviour, thermal degradation, etc. In the present investigation, 10 different types of hematite iron ore (obtained from different

Characterization of the burden behaviour of iron ore ...

2020-4-10 · Characterization of the burden behaviour of iron ore pellets mixed with nut coke under simulated blast furnace conditions Dharm Jeet Gavel a, Qingshi Songb, Allert Ademac, Jan van der Stelc, Jilt Sietsmaa, Rob Boom a and Yongxiang Yang a aDepartment of Materials Science and Engineering, Delft University of Technology, Delft, Netherlands; bResearch Institute, Baoshan Iron and Steel

Experimental investigations on the mechanical behavior of ...

2020-9-10 · The microstructures and element contents of iron tailings powder, cement, and nano-clay are determined by SEM and EDS according to the testing methods in . Fig. 2a is the SEM spectrum of iron tailings powder, showing the random and disorder configuration of iron tailing particles and many pores with different radii (>1 μm) between the particles.. Besides, the lamellar crystal adhered to the ...

behaviour of iron ore concrete crusher

2021-4-6 · The compressive strength for concrete grade M20 (1:1.5:3) were investigated for the control mix and while cement was partially replaced by Iron fillings. The result of. The tensile strength of concrete is one of the basic and important properties which greatly affect the extend and size of …

(PDF) Study of Softening and Melting Behaviour of Iron …

Softening and melting behaviour of the iron ore materials was studied towards understanding the mechanism of formation of liquid slag and metal phases in the pre-reduced sinter and pellets.

Utilisation of iron ore tailings as aggregates in concrete

2021-5-5 · Utilisation of iron ore tailings as aggregates in concrete. Francis Atta Kuranchie. 1 *, Sanjay Kumar Shukla, Daryoush Habibi and Alireza Mohyeddin. 1. Abstract: Sustainable handling of iron ore tailings is of prime concern to all stakehold-ers who are into iron ore mining. This study seeks to add value to the tailings by utilis-

Electrochemical Corrosion Behaviour of Concretes with …

Keywords: Concrete; Electrical Resistivity; Electrochemical Impedance Spectroscopy; Iron Ore Tailings; Linear Polarization Resistance Document Type: Research Article Affiliations: 1: Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia 2: Department of Building, School of Environmental Technology, Federal University of Technology Minna, Niger State, Nigeria ...

DEVELOPMENT OF SUSTAINABLE CONCRETE USING …

2019-9-10 · 2.3.3 Leaching behaviour of iron ore tailings 17 2.4 Iron Ore Tailings and Prospective Issues 18 2.5 Characteristics and potential applications of iron ore tailings in construction 19 2.6 Iron ore tailings as aggregates in concrete 21 2.7 Workability of Concrete with waste materials as

(PDF) SWELLING BEHAVIOUR OF CEMENT-BONDED …

Cement-bonded agglomerates of by-products generated in iron and steel plants are commonly used as burden material for blast furnaces. It has been observed that under certain conditions the ...

Characterization of Iron Ore Tailings as Fine ...

2020-3-1 · Abstract: Iron ore tailings (IOTs) are common industrial solid waste products which are generated in enormous quantities during the production process of iron ore. By visual observation, this material shows some similarity with natural sand (NS); it was therefore desired to characterize the IOTs to further ascertain their use in concrete.