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Jan 15 2014 · This paper investigated the use of iron ore tailings to replace natural sand as fine aggregate and studied the impact that various replacement levels had on the mechanical properties of UHPC. Additionally the pore structure and the microstructure were examined to interpret the macro-performance of the material. 2. Raw materials
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Four size ranges of IOTs depicted as IOTs-Fine IOTs-1180 IOTs-600 and IOTs-425 were investigated in this study. During iron ore mining operations two types of IOTs are generated fine IOTs and coarse IOTs. The fine iron ore tailings as obtained from the mine without additional processing are named IOTs-Fine in this study.
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iron ore tailings which is the waste products of mining industries is used as an alternative to the river sand in the manufacturing of concrete. 1.1 Objectives The main objectives of the experiment are "Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete" Construction
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Experiments were conducted to determine the suitability of iron ore tailings and quarry dust as fine aggregates replacement of river sand for concrete production and thereby to utilize the
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The Influences of Iron Ore Tailings as Fine Aggregate on the Aug 30 2015 The present study looks for the feasibility of preparing UHPC with iron ore tailings (IOT for short) as fine aggregate.
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Evaluation of iron ore tailings as replacement for fine aggregate in Aug 1 2018 Millions of tons of iron ore tailings (IOT) a by-product of iron ore processing are disposed of every year in landfills quarries rivers oceans Chat Online
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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 libx
Published in Advances in Materials Science and Engineering · 2015Authors Zhigang Zhu · Beixing Li · Mingkai Zhou Get Price
Iron Ore Tailings As Fine Aggregate Utilization of iron ore tailings as fine aggregate in. Jan 15 2014 This stone investigated the use of iron ore tailings to replace natural sand as fine aggregate and studied the impact that various replacement levels had on the mechanical properties of UHPC.
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mining sand as fine aggregate concreteUtilisation of iron ore tailings as aggregates in concreteTaylor . Sep 7 2015 . tional fine aggregates was partially replaced by 20 with iron ore tailings. . The long-time existence of large-scale iron ore mining in Western Australia .
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An Experimental Study on Utilization of Iron Ore Tailings conventional cement and fine aggregate respectively 2) Partial replacement of waste glass powder and iron ore tailings with cement and fine aggregate respectively and comparing the result with conventional concrete 3) To determine the strength properties of concrete for 7 28 and 56
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As shown in Figure 3 the slumps and liquidity of concrete mixed with iron ore tailings decreased compared with that of normal concrete under the same condition (water mixture ratio admixture etc.).This phenomenon arises because the particles of iron ore tailings are rough and occluded with coarse aggregate so cohesion increases significantly in the tailing mixes.
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Abstract Utilisation of iron ore tailings in bricks as a replacement for sand will help in sustainable and greener development. The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day there is a need for substitution for sand in bricks.
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Iron and Copper Tailings as a Fine Aggregate in Concrete Mineral Processing WastesMaterial DescriptionUser Guidelines Fine tailings have been used as fine aggregate in asphalt paving mixes particularly overlays Iron Ore Tailings Kaiser-Eagle Mtn CA Lead-Zinc Tailings ASARCO. What is iron ore lumps and iron ore fines.
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jelly with different mix ratios and by using sand and Iron ore tailings as fine aggregates. The results of his study showed that compressive strength of tailing based mix was higher than the respective reference mix.MohanKushwaha et al. (2013) have reported that the use of red mud as an admixture up to 2 will improve the compressive strength and if over 2 of red mud is added then the
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The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day there is a need for substitution for
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by complete replacing fine aggregate by Iron ore tailings and GGBS as partial substitute to cement at 10 20 30 and 40 . The cubes were casted and their compressive strengths were evaluated at 7 14 and 28 days. As the percentage increased the strength is also increased but only up to 30
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Millions of tons of iron ore tailings (IOT) a by-product of iron ore processing are disposed of every year in landfills quarries rivers oceans among others thereby posing environmental problems. The major aim of this study is to evaluate IOT as replacement for river sand in concrete and compare with the result of conventional concrete.
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Iron ore tailings were added to the experimental concrete along with the cement. The tailings were split up according to particle size. Those that were 4.75 mm in diameter and below were used as fine aggregates and those that were 10 to 20 mm in diameter were used as coarse aggregates.
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mining of natural sand iron ore tailings which is the waste products of mining industries is used as an alternative to the river sand in the manufacturing of concrete. 1.1 Objectives Determining the properties of iron ore tailing and comparing the results with the fine aggregate i.e. sand.
Get PriceThis study presents the sustainable utilization potential of Iron Ore Tailings (IOT) as a replacement material against natural fine aggregates in the preparation of fly ash based geopolymer mortar. Low calcium fly ash is used as the source material and a mixture of sodium hydroxide and sodium silicate is used as the alkaline activator in the mix.
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iron ore tailings which is the waste products of mining industries is used as an alternative to the river sand in the manufacturing of concrete. 1.1 Objectives The main objectives of the experiment are "Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete" Construction
Get Price
The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day there is a need for substitution for
Get Price
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 libx
Published in Advances in Materials Science and Engineering · 2015Authors Zhigang Zhu · Beixing Li · Mingkai ZhouGet Price
by complete replacing fine aggregate by Iron ore tailings and GGBS as partial substitute to cement at 10 20 30 and 40 . The cubes were casted and their compressive strengths were evaluated at 7 14 and 28 days. As the percentage increased the strength is also increased but only up to 30
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In the present study Iron Ore Tailings (IOT) procured from Kudremukh Lakya Dam site (KIOCL Ltd.) are used as partial replacement to fine aggregates at levels of 10 20 30 40 50 percent and the basic material properties strength parameters are studied. It is found that as the IOT percentage increases in the mix workability is reduced.
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7. TAILINGS MANAGEMENT These are hillside tailings dams accommodating iron ore under the current tailings dams Fine (predominantly clay) material User Guidelines for Waste and Byproduct Materials in Pavement Unit Weight Iron ore tailings and incorporating mill tailings as the fine aggregate mineral filler or coarse
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Key words iron ore tailings size distribution of granules compressive strength Abstract Innovative researches on properties of sand grout with iron ore tailings (IOT) as fine aggregate were conducted. The results show that exclusive ferrous mineral in the IOT is merrihueite beside quartz in both IOT and nature sand (NS).
Get PriceIJRET International Journal of Research in Engineering and Technology. eISSN 2319-1163 pISSN 2321-7308. UTILIZATION OF IRON ORE TAILINGS AS REPLACEMENT TO FINE AGGREGATES IN CEMENT CONCRETE
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Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore. Tailings are distinct from overburden which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.
Get Priceiron ore tailings. Their flex-compression ratio was 1/6 and 10 higher than that of the control group that used sand as the fine aggregate. The crack resistance of the iron ore tailings concrete was studied at the same time and the microstructure was observed with an SEM.
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An attempt is made with Iron Ore Tailings as a partial replacement of fine aggregate in the concrete. The main aim of this section is to present an overview of research work carried out by various researchers in the field of Iron Ore Tailings and replacement of fine aggregates. Sujing Zhao et al (2014) 10 investigated that 100 replacement of
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iron ore tailings as fine aggregate nepal. Iron ore tailings were added to the experimental concrete along with the cement The tailings were split up according to particle size Those that were 475 mm in diameter and below were used as fine aggregates and those that were 10 to 20 mm in diameter were used as coarse aggregates
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iron ore tailing (IOT) as fine aggregate would turn this waste material into valuable resources reduction in the strain on the supply of natural sand and economy in concrete production. World production averages one billion metric tons of raw ore annually.
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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 libx
Published in Advances in Materials Science and Engineering · 2015Authors Zhigang Zhu · Beixing Li · Mingkai Zhou Get Price
Jan 15 2014 · Read "Utilization of iron ore tailings as fine aggregate in ultra-high performance concrete Construction and Building Materials" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Published in Construction and Building Materials · 2014Authors Sujing Zhao · Junjiang Fan · Wei SunAffiliation Southeast UniversityAbout Microstructure Get Price