Thread Review (Newest First) |
Posted by 23mh28 - 09-01-2017, 03:08 PM |
I am Umesh i would to get details on pavement stabilization using iron ore was for my academic project please help me to get this PPT. |
Posted by sayyadsanan - 09-01-2017, 03:08 PM |
Black cotton soils are soils that expand when it becomes wet it gets expand and when it becomes dry it gets shrink . This continuous expansion and contraction will decreases its strength.,. Foundation with swelling soil will heave and can cause lifting of a building or structure laid on it whenever the moisture content rises. expansive soil consists of mineral like smectite, bentonite, montmorillonite, beidellite, vermiculite, attapulgite, nontronite, illite and chlorite. There are some amount of sulfate salts which will expand due to changes in temperature. Soil containing above mentioned expansive minerals, they tend to possess significant expansion or swelling. 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 is one of the growing company in our country in mining of iron ore. This company used to dumpat lakya dam around 200 million at metric tons of iron ore tailings . TheKIOCL company has conducted mining for more than 25 years in Kudremukh. The company has stopped mining in 2005, 2. MATERIALS Iron ore tailing which is having bulk density 1594 kg/m3 and the fineness modulus 2.53 was used in the project work . The specific gravity of the IOT was found to be 2.85and which is suitable for concrete works. The gradation of the used particles falls within the fine aggregates Table -1: IRON ORE TAILING S (IOT) CHEMICAL COMPOSITION Minerals Fe2O3 SiO2 CaO Al2O3 MgO TiO2 Composit ion (%) 47.70 45.64 0.607 3.26 0.393 0.240 Design of tailings disposal can be carried out without an appreciation of the physical nature and chemical characteristics of the iron ore tailings. Plant effluent, physicchemical properties of the material dictate on the most fundamental level, the type of disposal facility required and the degree of conservation in its design, consistent with the hazards posed by the materials understanding of tailing effluent involves knowledge of the processes through which they are produced. |