2 partial replacement of waste glass powder and iron ore tailings with cement and fine aggregate respectively and comparing the result with conventional concrete.o determine the strength properties of concrete for 7, 28 and 56 days.o economically compare conventional concrete with the concrete modified using waste glass powder and.
2.5 iron iron waste isyproduct material. when the waste material is disposed of, it will affect the environment. over the past few years, the amount of this material has been increased by steel factories. in order to reduce the impact of waste material on the environment, iron waste could be used instead of sand concrete mixture.
Abstract this paper investigates the suitability of using iron ore tailings iots and crushed waste rock cwr as fine and coarse aggregates to prepare high strength concrete hsc with 28day target compressive strength of 80 mpa. this experimental investigation was carried out.
After the determination of gradation, marshall stability tests were conducted to determine the volumetric properties of the specimens. the coarse aggregates used in the present study are crushed hard rock passing 16mm, 12.5mm, 10mm and 6mm sieve sizes. the iron are tailings passing 2.36mm sieve is used as filler material.
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.
C. coarse aggregate properties of coarse aggregate specific gravity 2.67 water absorption 0.8 bulk density 1.324 kgl voids 50.412 28.66 d. iron ore tailing as per tablef is 3831970 the iron ore tailing belongs to zone ii. table.4 properties of iron ore tailing specific gravity 3.1 water absorption 6.
However, the specific gravity or unit weight of waste rock from the mining of iron ore and taconite will be considerably higher than that of conventional aggregates. the specific gravity of waste rock can be expected to range from 2.4 to 3.0 for most rock types and from 3.2 to 3.6 for waste rock from iron ore and taconite minings.
Ijret international journal of research in engineering and technology eissn 23191163 pissn 23217308 utilization of iron ore tailings as replacement to fine aggregates in cement concrete pavements skanda kumar1, suhas r2, santosh uttam shet3, srishaila4ssistant professor, department of civil engineering,.
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.
In the process, the waste produced from mining industry is one of such source. the aim of this study is to evaluate the suitability of iron ore waste as partial replacement of coarse aggregates in.
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.
Iron ore tailing is generated during the process of excavation, which is not useful including top soil.iron ore waste rock passing through 20 mm is sieve is used in this experimental study. the specific gravity iron ore waste rock is 3.1. figureron ore waste rock 2.1.4. coarse aggregate crushed stone of 10mm amp 20 mm size was used as coarse.
Iron ore tailings iot are the byproducts of iron ore beneficiation, and these tailings are disposed of in several tons annually in quarries, landfills, and tailings dams, causing environmental issues. various researchers have attempted to study the properties of iot and the use of them in concrete asuilding material.
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. the kiocl company which waseading company in india in the mining activities of iron ore has dumped about 200 million metric tons of iron ore tailings at lakya dam.
Iron slag can also be used as coarse aggregate in concrete. the growing concrete of resource depletion has challenge many engineers and researchers seek and develop new to materials for construction, this include the use of byproduct and industrial waste in building construction. many of these by products may serve as aggregate in concrete.
Keywords concretemaking material fine aggregate iron ore tailings microscopy of material sustainability waste material. date 312020. abstract iron ore tailings iots are common industrial solid waste products which are generated in enormous quantities during the production process of iron ore.
Left after the extraction and processing of iron ore in the mines to form fine particles less than 4.75mm. usually, iron ore dust is treated asomplete waste, and used to fill the low lying areas. use of iron ore dust as an alternative to normal aggregates in concrete m. nadeem et alraws serious attention of researchers and investigators.
Natural coarse aggregates cas in concrete. in this study broken mangalore tiles as coarse aggregate in addition with iron ore slag in the production of low to medium strength concrete is carried out. 1.1 experimental objectives important aspects of the work is to strengthen the.
Physicochemical properties and aggregate tests such as crushing, abrasion, impact, shape test, the specific gravity and water absorption were determined as per standards and the results effect of iron ore tailing on the properties of concrete,iron ore tailing iot as fine aggregate would turn this waste material into valuable resources.
Possibility of using waste iron ore slag amp tiles as an alternative construction material will be investigated by conducting different tests on prepared specimens, it is 1.2 materials used the materials such as opc 53 grade cement sand coarse aggregate iron.
Tailings are segregated properly, both fine and coarse aggregates for concrete can be obtained. therefore, if the iron ore mining companies in wa could incorporate comprehensive utilisation of the tailings in their operation, it could lead to cleaner production and.
The aim of this study is to evaluate the suitability of iron ore waste as partial replacement of coarse aggregates in concrete with reference to the conventional materials. physicochemical properties and aggregate tests such as crushing, abrasion, impact, shape test, the specific gravity and water absorption were determined as per standards.
The concentration tailings of iron ore showed to be viable materials for the replacement of coarse and fine aggregate concrete blocks pavers, with regard to.
The other comprising granite stone as coarse aggregates. the compressive strength of bfs aggregate concrete is higher than that of the stone aggregate concrete at the age of 90 days. 1.3.slag manufacturing and types in the production of iron, iron ore, iron scrap, and fluxes limestone andor dolomite are charged intolast furnace along.
The present study looks for the feasibility of preparing uhpc with iron ore tailings iot for short as fine aggregate. to enhance outstanding high performances, some influences on uhpc mortars were investigated such as different kinds of sands, different mix ratio of sands, and different largest particle size of fine aggregate. the results show that iot have negligible.
The replacement of coarse aggregate by tiles and sand by iron ore slag effects on the workability of the concrete. the workability of this proposed concrete shows an increase in slump with increase of waste content of total aggregate volume.
The utilization of waste as iron ore in making concrete aggregate quality k.300 concrete is an manmade building material that looks like stone. concrete isomposite material consisting of coarsegrained material aggregates or fillers that is embedded inolid matrix of material cement or binder that fills the space between the.
The utilization of waste as iron ore in making concrete. the method used in this research is study of literature. this research found that concrete using iron ore as an aggregate hasompressive strength higher than normal concrete that is equal to 38.90mpa assuming greater size of iron ore as aggregate, the higher the fe content, the size of.
The waste produced in iron ore mining operations. bn skanda kumar1 used the iot as replacement to fine aggregates in cement concrete pavements. the result showed that replacement of 40 iot gives maximum compressive strength which is more than the reference mix. b. coarse aggregate coarse aggregate passing 20 mm and retained on 4.75 mm is.
These mine wastes were sieved and particles between 12.5 and 20 mm size were used as coarse aggregate in preparing concrete mix in the current study.