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The split tensile strength, flexural strength and durability assessments were done for the mix to obtain optimum compression strength. The test results show the workability falls off with the increment of iron ore tailings in percentage, while the compression strength values up to 30% iron ore tailings replacement are above the …
with partial replacement of sand with iron ore tailing. The workability of concrete decreases by addition of Iron Ore Tailing. 4.2 Compressive Strength test result Table 4, shows the Compressive strength of concrete mixes made with partial replacement of sand with iron ore tailing was determined at 7, 14, 21 and 28 days. It was
thermal compressive strength of pellet was tested and automatically recorded by the data acquisition system. For each test, ten pellets were measured, and the average value was used as the final experimental result. 2.3 Characterization methods Mechanism of thermal compressive strength evolution of carbon-bearing iron ore pellet without…
During the experiment, concrete cubes were prepared with 10- composition of iron ore waste to evaluate their compressive strength. Results from the experimentation revealed that, concrete cubes prepared by partially replacing sand with iron ore waste often yield a better compressive strength than a conventional concrete.
Uniaxial compressive strength (UCS) is a key physical test relevant to iron ore crusher design and rock geomechanics for mining. Tests are typically performed on intact lengths of NQ, HQ, or PQ diamond drill core and record the …
The optimum compression strength is achieved for the mix containing 10% iron ore tailings. After the beneficiation of iron ore, the waste is generated, which arise …
The maximum compressive strength rating of 8.58 N/mm 2 was recorded with ratios of 8:2 (Iron tailing and cement). However, in process of making it economical, the ratio of 9:1 has opted and this ratio complies with the requirement of the Indian standard (IS: 1077:1992) of the common burnt clay building bricks.
Mechanical features such as water absorption, compressive strength, and efflorescence are tested. The maximum compressive strength rating of 8.58 N/mm 2 …
Concrete containing iron ore tailings (IOT) enhances compressive and splitting strengths. •. IOT concrete improves durability properties and resists …
DOI: 10.1016/j.conbuildmat.2022.128611 Corpus ID: 251298997; Compressive strength and composite pore structure parameters of iron ore tailings ball concrete @article{Li2022CompressiveSA, title={Compressive strength and composite pore structure parameters of iron ore tailings ball concrete}, author={Yi Li and …
Natural sand and iron ore tailings were used as aggregates. The natural sand was originally excavated from the lower reaches of Yangtze River and had an apparent density of 2.63 g/cm 3.The tailings were obtained from the local iron and steel industry and had an apparent density of 2.62 g/cm 3.The chemical composition of the …
Mechanical properties such as compressive strength (CS), water absorption (WA), and efflorescence were measured. The maximum CS of 8.58 N/mm 2 …
The effects of oolitic haematite ore additions on the compressive strength of iron ore pellets were investigated in a preliminary study. It was found that additions of oolitic haematite at levels of up to 15% by mass decreased the compressive strength from about 3250 N to 1729.1 N, which is below the minimum requirement of 2500 N for use in a ...
To replace part of sinter with pellets to achieve energy saving and emission reduction, high-basicity pellets are investigated. In this study, the effect of basicity and roasting temperature on the compressive strength and microstructure during the induration is examined. Green pellets (basicity: 1.5–3.5) are made by laboratory-scale …
This study aims to broaden the application of iron ore tailing (IOT) in geopolymer. Fresh properties, residual strength, mass loss and microstructure evolution of geopolymer prepared by using fly ...
4.2.2 Alumina Content Versus Pore Phase Grains Density. The pore phase density for pellets with minimum alumina content of 1 wt% in the pellet has 80.2 grains/mm 2 with a further increment of alumina content 2 wt% pore density decrease 47.2 grains/mm 2 which is the lowest in the four samples. It is remarkable that pore density increase with …
Effect on Compressive Strength of Iron Ore Pellets Rakesh Prasad, Sadhna Bijrothiya, Manoj Narwariya, and Naresh Kumar 1 Introduction ... Kawachi S, Kasama S (2011) Effect of micro-particles in iron ore on the granule growth and strength. ISIJ Int 51(7):1057–1064.
Abstract. Read online. Chemical stabilization is used to enhance and increase the strength characteristics of soft and problematic soils. In this research, Gaussian Process Regression (GPR) is employed to estimate the unconfined compressive strength (UCS) and the Young's modulus (E) of lean clay soils stabilized with iron ore mine tailing (IOMT) and …
agent in pellet making improved the strength of iron ore pel- lets [13].Timuçin et al. investigated the reducibility of pellets prepared with different percentages of calcined colemanite.
The compressive strength of the concrete with iron ore tailings aggregates at 28 days was 36.95 MPa which shows an improvement of 11.56% over the concrete with conventional aggregates. This is mainly because of favourable chemical composition of the iron ore tailings. (2)
compressive strength (CS) of 25.40 MPa at 950 C i n. 40:60 proportions of clay and waste, respectively. Further, water absorption (WA) of iron ore bricks was. low in comparison to fly ash and...
The compressive strength and water absorption of bricks were 42.98 MPa and 2.42% respectively. The studies demonstrate that non fired bricks can be ... bricks from iron ore tailings of Donimalai mines of Bellary, Karnataka, India which fulfil the necessities of the international and national standards requirement
The compressive strength of iron ore granules, as measured from experiments, reflects the capillary cohesion of primary particles. For smallest amounts of water used in experiments, it may be assumed that the water is distributed as binary liquid bridges between particles [11, 12]. For the simulations, we also assume
Compression strength (daN/p) 250 min: Size distribution (+8mm to -18 mm) 95 % min: Size distribution (-5 mm) 1.50 %: Porosity: ... The strength of iron ore pellets is important in minimizing degradation by breakage and abrasion during handling and shipping, and in the blast furnace. Strong bonding in pellets is believed to be due to grain ...
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The global iron-producing industries are trying to use the high alumina content iron ores due to the exiguity of high-grade ores and economic reasons. For this purpose, this present study focuses on the utilization of high alumina hematite iron ores obtained from eastern part of India in pelletization experiments. The effects of firing …
Figure 6 Compressive strength of cube with 40% replacement of sand by iron ore tailings Figure 7 Compressive strength of cube with 60% replacement of sand by iron ore tailings Figure 8 Compressive strength of cube with 80% replacement of sand by iron ore tailings Figure 9 Compressive strength of M25 grade concrete with partial
replaced by Iron Ore Tailings, compressive strength increases for all three curing periods. Whereas, it only increases for partial replacement of fine aggregate. After 50% replace strength starts decreasing Fig.5.1.1: - Graph comparing Results of compressive strength after 7 days, 21 days, and 28 days ...
The research on whether can iron ore tailing improve the compressive strength of alkali- activated slag ing concrete is conducted. The experiment shows that too little or too much powder from iron ore tailing will reduce the compression strength of alkali activated slag concrete, when powder from iron ore tailing achieving …
DOI: 10.1080/00084433.2023.2245207 Corpus ID: 260850158; Effect of TiO2 on compressive strength and microstructure of high basicity iron ore pellets @article{Hu2023EffectOT, title={Effect of TiO2 on compressive strength and microstructure of high basicity iron ore pellets}, author={Rong Hu and Qi-di Li and Jian …