Browsing by Author "Kazi, Tehsin A"
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Item Mechanistic approach for fibre-reinforced flexible pavement(AIKTC, 2019-05) Kazi, Tehsin A; Dandekar, Sufiyan Imtiyaz (16DCES64); Dongare, Kiran Appaso (13CES16); Darji, Ammar Iqbal (14CES09)Soil stabilization is the technique used to increase the strength and stability of soil. It is done by reinforcing the soil with various reinforcing materials, such as geotextiles, geo strips, geonets and fibers. The fibers used in the previous studies for increasing stability are carbon steel, saw dust, wheat husk, polypropylene, etc. Soil stabilization is done by reducing the layer thickness and extending the service life of the pavement. From the previous study, soil stabilization is done mainly by mechanical stabilization, physical stabilization, and by using polymers. Physical and chemical properties of the fibers also plays an important role in soil stabilization such as specific gravity, optimum moisture content (OMC), maximum dry density (MDD), etc. Various tests were performed to decide the optimum quantity of fibers on reinforced and unreinforced such as compaction tests, unconfined compression (UCC) strength tests, CBR tests, etc. Soil stabilization is the better option in terms of economy as well as energy rather going for deep foundation or raft foundation, which depends on designer.Item Study on use of polymeric waste materials in concrete for rigid pavements(AIKTC, 2019-05) Kazi, Tehsin A; Ansari, Saifuddin Mohiuddin (16DCE61); Mohammad Danish, Mohd. Yusuf (13CE34); Salge, Shravan Naresh (16DCE81)Concrete is strong in compression but weak in tension and brittle also. Cracks also start forming as soon as the concrete is placed. These 3 drawbacks don’t permit the use normal concrete in pavements as they lead to lack of ductility along with fracture and failure. These weaknesses in concrete can be mitigated by using fibers as reinforcement in the concrete mix. Waste materials in the form of polypropylene cause environmental pollution which leads to various health problems. Polypropylene can be recycled and used effectively in the concrete as reinforcement in the fiber form. Polypropylene is a synthetic hydrocarbon polymer which can improve the ductility, strength, shrinkage characteristics etc. This paper deals with the effects of addition of polypropylenefiber on the properties of concrete. Polypropylene is used 1.5% and 3% by volume. Grade of concrete used were M25. IRC 44:2008 was followed for the design of concrete mix. In this study, the results of the Strength properties of polypropylene fiber reinforced concrete have been presented by various tests.Item Subgrade stabilization, design and analysis of flexible pavement by mechanistic empirical approach(AIKTC, 2019-05) Kazi, Tehsin A; Siddique, Izhar Ahmed [15CE16]; Shah, Shahnawaz Bashir [15CE41]; Sayed, Danish Mushir Ahmed [15CE39]Soil stabilization is one of most important process in construction of road pavement and foundation because it improves the engineering properties of soil such as strength, volume stability and durability. The disposal of solid waste now –a- days is of major concern. solid waste like fly ash is generated in tonnes every year. Usin large amount of fly ash in pavement construction will bring economy in pavement design. Using fly ash makes it more environment friendly and reduces the disposal actions and it creates an options of recycling. An attempt is made to use fly ash to stabilized the soil and design the thickness of pavement by MEPGD. The thickness of flexible pavement on virgin soil is tested, stabilized and designed. Design involves computing the stress and strain by using IIT pave software, In order to achieve the strength which are the major problem in weak soil like clay and try to bring economy in future road constructions.