Browsing by Author "Dasgupta, Rohan"
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Item Analysis of precast concrete sandwich wall panels(AIKTC, 2020-05) Dasgupta, Rohan; Memon, Mohammed Ismail (17DCE60); Mulla, Kaleem Abdul Kadar (17DCE65); Shaikh, Ashraf Abdul (17DCE73); Usmani, Mohamed Ayan Moin (17DCE78)Precast concrete sandwich panels are commonly used on building exteriors. They are typically composed of two concrete wythes that surround rigid insulation. They are advantageous as they provide both structural and thermal resistance. The structural response of sandwich panels is heavily influenced by shear connectors that link the wythes together. The analysis of the panels can be done using various softwares but this can be uneconomical for the small scale industries. Therefore, an approach is made by analysing the same using excel. Also the use of Precast Concrete Sandwich Wall Panels is not yet studied quite well in our country and no such codes are available for this only some guidelines are provided by the PCI committee. There are various problems related with the use of fully composite and fully non-composite panels, therefore an approach for the use of partially composite panels is made. Keywords: sandwich panels, wythes, precast, partially composite panel.Item Building design and drawing II CE-Sem V(AIKTC, 2015-11) Dasgupta, RohanGreen Buildings;Planning And Designing Of Public Buildings;Perspective Drawing;Town;Architectural Planning;Modular Planning;Role Of ComputersItem Design of EPS based wall panels(AIKTC, 2020-05) Dasgupta, Rohan; Bhosale, Omkar Ajay (17DCE50); Sonawane, Dushant Sanjay (17DCE51); Syed, Zulfiquar Irshad Mendi (16CE47)Precast concrete walls become increasingly utilized due to the rapid needs of inexpensive fabricated house especially as traditional construction cost continues to climb, and also, particularly at damaged area due to natural disasters when the requirement of a lot of fast-constructed and cost-efficient houses are paramount. However, the performance of precast walls under lateral load such as earthquake or strong wind is still not comprehensively understood due to various types of reinforcements and connections. Additionally, the massive and solid wall elements also enlarge the building total weight and hence increase the impact of earthquake significantly. Therefore, the precast polystyrene-reinforced concrete walls which offer light weight and easy installment became the focus of this investigation.Item Environmental Studies(AIKTC, 2016-09-06) Dasgupta, RohanPowerpoint Presentation for different module of EVS.Item Environmental Studies (EVS) - CE Sem I(AIKTC, 2015-11) Dasgupta, RohanMultidisciplinary Nature Of Environmental Studies;Sustainable Development;Environmental Pollution;Air Pollution;Environmental Pollution;Water Pollution;Environmental Pollution;Soil Pollution;Environmental Pollution;Noise Pollution;E Pollution;Environmental Legislation;Renewable Sources Of Energy;Environment And TechnologyItem Experimental Investigation on Behavior of Piled- Raft Foundation(International Journal for Science and Advance Research In Technology, 2017-06) Maralapalle, Vedprakash; Dasgupta, Rohan; Shaikh, Wasim (14CEM14)Abstract-In the piled-raft foundation systems the load is assumed to be shared between the piles and raft. Therefore, this improves the ultimate load capacity and reduces settlements in a very economic way as compared with the traditional foundation concepts. The use of strategically located piles improves the load capacity of raft and reduces the differential settlement. This research sheds some light on the philosophy of using piles as settlement reducer for raft foundation and also the behavior of pile length and alignment on the attained ultimate load are experimentally investigated. The experimental program includes the model test on unpiled raft, raft supported by single pile, (2x2), (3x3) and (4x4) pile groups. From the accomplished studies, it has been concluded that as the number of piles underneath the raft increases, load carrying capacity of foundation increases. Also, there is a negligible effect on load improvement ratio and settlement reduction ratio with increase in raft thickness and number of piles. The observed settlement values from Experimental study was compared with numerical modeling using PLAXIS-3D and found the results are in good agreement. Keywords- Piled-Raft, PLAXIS-3D, Ultimate Load, Foundation.Item Experimental Study on Behavior of Piled-Raft Foundation: A Critical Review(International Journal for Science and Advance Research In Technology, 2017-06) Maralapalle, Vedprakash; Dasgupta, Rohan; Shaikh, Wasim (14CEM14)Abstract-In the piled-raft foundation systems the load is assumed to be shared between the piles and raft. Therefore, this improves the ultimate load capacity and reduces settlements in a very economic way as compared with the traditional foundation concepts. Only limited research has been done on experimental Study on Behavior of piled-raft foundation, this paper presents a literature review on the experimental program is aimed to investigate the behavior of Piled- Raft Foundation. Keywords-Piled-Raft, PLAXIS 3D, finite element.Item Geotechnical Engineering - I(AIKTC, 2017-08-16) Dasgupta, RohaneCourseware material like PPT Presentation, Lecture Notes, Video, Question Bank, etc for Geotechnical Engineering - I, Sem VItem Green audit of Anjuman-i-Islam's Kalsekar Technical Campus(AIKTC, 2021-05) Dasgupta, Rohan; Singh, Snehal (15CE06); Ansari, Waseem (18DCE02); Shaikh, Fuzail (18DCE14); Shamsi, Soheb (18DCE18)The construction industry in India is one of the largest economic activities and is growing rapidly. The International Energy Agency estimated that existing buildings are responsible for more than 40% of the world’s total primary energy consumption and for 24% of global carbon dioxide emissions. One strategy for achieving that transformation is most widely known by the term Green Building. We have gone past the point where going “green” is an option. It has now become an absolute necessity to not only mandatorily construct green but rate Green Quotient of our existing buildings also according to suitable green rating systems. In this work, the detailed green audit of the Anjuman-I-Islam’s Kalsekar Technical Campus is done. The tool adopted for rating is the IGBC Green Campus Rating System (New & Existing). Green audit can be a useful tool for a college to determine how and where they are using the most energy or water or resources; the college can then consider how to implement changes and make savings. It can also be used to determine the type and volume of waste which can be used for a recycling project or to improve waste minimization plan. It can create health consciousness and promote environmental awareness, values and ethics. It provides staff and students better understanding of green impact on campus. In AIKTC we did the audit process in three stages i.e Pre audit, On site audit and Post audit. The pre audit stage involved initial interviews with management to clarify policies,records of activities in the implementation of mitigation measures and Collection of required data for capmus's green audit. The baseline data prepared for the AIKTC will be a useful tool for campus greening, resource management, planning of future projects, and a complete document for implementation of sustainable development of the college. After collecting the data from institute the on site audit performed which showing the detail of points obtained by the campus .The rating of the campus in each category has been done and the points have been allotted based on the existing condition of the campus. By this evaluation process, the degree of sustainability of the Campus is analyzed and rating is given. It will be a guiding factor in adapting measures for increasing its sustainability.Item Improvement of soil by using bitumen emulsion(AIKTC, 2018-05) Dasgupta, Rohan; Siddique, Aaftab (15DCES58); Faquih, Rameez (15DCES65); Jamali, Mohd.Zahran (15DCES68); Shaikh, Arfan Mohd (15DCES86)Soil is one of nature’s most abundant construction materials. Almost all type of constructions are built with or upon soil. If the sub-grade is not good enough, cracks may appear in the whole structure which may ultimately lead to failure. Conventionally, the sub-grade is normally replaced with stronger soil materials to improve the strength, but this practice is not economical. In this project, an attempt has been made to increase the strength of soil by adding bituminous emulsion instead of replacing it with stronger soil. The soil has been classified by conducting soil tests such as sieve analysis, liquid limit test, plastic limit test, shrinkage limit test, standard proctor test. The initial strength of soil has been determined by conducting soil tests such as California bearing ratio tests and unconfined compression test. The results obtained is then compared with the soil treated with 7% (by weight) of bitumen emulsion at different grades of bitumen emulsion and conclusion were drawn on to which grade would be suitable for the chosen soil.Item Improvement of soil by using bitumen emulsion(AIKTC, 2018-05) Dasgupta, Rohan; Siddique, Aaftab (15DCES58); Faquih, Rameez (15DCES65); Jamali, Mohd.Zahran (15DCES68); Shaikh, Arfan Mohd.(15DCES86)Soil is one of nature’s most abundant construction materials. Almost all type of constructions are built with or upon soil. If the sub-grade is not good enough, cracks may appear in the whole structure which may ultimately lead to failure. Conventionally, the sub-grade is normally replaced with stronger soil materials to improve the strength, but this practice is not economical. In this project, an attempt has been made to increase the strength of soil by adding bituminous emulsion instead of replacing it with stronger soil. The soil has been classified by conducting soil tests such as sieve analysis, liquid limit test, plastic limit test, shrinkage limit test, standard proctor test. The initial strength of soil has been determined by conducting soil tests such as California bearing ratio tests and unconfined compression test. The results obtained is then compared with the soil treated with 7% (by weight) of bitumen emulsion at different grades of bitumen emulsion and conclusion were drawn on to which grade would be suitable for the chosen soil. Keywords : Soil improvement, Bitumen emulsion, Shear strength, CBR, Subgrade improvement.Item Recycling of Concrete using Chemical Admixtures(AIKTC, 2016-05) Dasgupta, Rohan; Khan, Abdul Karim (11CE20); Shafi, Abdul (12CE70); Shaikh, Ramjan (13CE84)The development in the construction industry all over the world is progressing day by day. High-tech and modernized designs are being built and old buildings are being demolished or renovated. One of the things builders, developers and contractors must consider during construction, renovation or demolition is where to put all the debris. When structures made of concrete are to be demolished, concrete recycling is an increasingly common method of disposing of the rubble. Concrete debris was once routinely shipped to landfills for disposal, but recycling has a number of benefits that has made it more attractive option in this age of greater environmental awareness, more environmental laws, and the desire to keep construction costs down. In this study, we are aiming to design a concrete debris mixture as mortar mix that will meet the IS requirements, in order to help contribute to the industry in saving the environment, to encourage the government to find solutions regarding the disposal to landfills of waste materials and save the environment, to provide new knowledge to the contractors and developers on how to improve the construction industry methods and services by using recycled concrete debris, and to sustain good product performance and meet recycling goals. The objectives of this project are to prepare a mix design of M20 grade concrete using concrete rubble from demolition site and admixture (super-plasticizer), to prepare a mix design of M25 grade concrete using concrete rubble from demolition site and admixture (super-plasticizer), to carry out Slump Cone Test on the above mentioned concrete mixes, to carry out Compressive Strength Test on the above mentioned concrete mixes, to carry out different tests on recycled aggregates & natural aggregates & compare their results and to finally conclude the effectiveness of concrete recycling based on the above test resultsItem Soil stabilization by using micropile(AIKTC, 2018-05) Dasgupta, Rohan; Tuse, Aniket (14CE61); Abdullah, Zaid(14CE63); Mohd, Mahboob(15DCE65)Micropiles have been primarily used as foundation support elements to resist static and dynamic loadings, and to a lesser extent, to provide reinforcements to the stabilization of slopes and excavations. Micropiles have been used effectively in many applications of ground improvement to increase the bearing capacity and stabilization of slopes. The purpose of this study is to determine fundamental design guidance for using micropiles for the stabilization of slope by performing slope stability analyses referring manual or codal provisions, Construction and installation of Micropile is also discussed. The study gives a brief idea about the optimum angle of inclination of micropile to resists the horizontal force for different soil samples having different cohesive properties and angle of friction. Keywords: Micropile, Soil Stabilization, Slope Stability, CohesionItem Soil stabilization using polypropylene(AIKTC, 2018-05) Dasgupta, Rohan; Ansari, Kashif Ahmed (14CES04); Khan, Aqib (14CES13); Khan, Mohd Asif (14CES19); Khan, MohdShakir (14CES21)Naturally found soil may or may not be strong enough to hold superstructures. For weak soil the method of soil stabilization is used to increase its strength. Consequently, randomly distributed fibre-reinforced soils have recently attracted increasing attention in geotechnical engineering. Among various methods of soil stabilization, one is to reinforce the soil with fibres. This study investigates and compares the differences between unreinforced and reinforced soil. Soil here is reinforced with polypropylene fibre of length 24mm with varying percentage by mass of soil as 0.6% 0.8% 1.0% and 1.2%. The soil was tested and basic properties were identified. Unconfined compression tests have been carried out to draw inferences about the effect of polypropelene fibres on strength of soil. This study also finds out the optimum dosage of polypropylene fibre by analysing the results and obtaining the best values possible. Keywords—Soil stabilisation, Polypropylene fibre, Soil reinforcement,Optimum dosageItem Stuctural behaviour of prestressed concrete T-beam and slab deck bridge girder under class AA loading(AIKTC, 2017-04) Dasgupta, Rohan; Ansari, Mohd. Shahzad (14DCES53); Khot, Shayan (14DCES65); Momin, Kalim (14DCES68); Patka, Obaid (14DCES69)Prestressed concrete is ideally suited for the construction of medium- and long span bridges. Solids slab are used for the span ranges of 10 to 20m , while T- beam slab decks are suitable for span in the ranges of 20 to 40m. single or multicell box girder are preferred for larger span of the order of 30 to 70m. Prestressed concrete is ideally suited for long span continuous bridges in which precast box girder of variable depths are used for span exceeding 50m.Prestressed concrete has been widely used throughout the world for simply supported continuous, balanced cantilever, suspension, hammer-head and bridle- chord type in the span range of 20 to 500m. In this project, designs are prepared for prestressed concrete t-beam and deck slab bridge for spans ranging from 15 m to 45 m at an interval of 5 m. In this project, the designs adopted for each span of bridge is presented in tabular formats. Relevant discussions have also been added when and where required to emphasize further into the matter. This in turn will help us conclude the suitability of the given bridge under Class AA Loading. A Microsoft Excel spreadsheet has also been formulated for the ease of designing. Working drawings of the same have been prepared for clarity of understanding.Item Subgrade soil stabilization by using demolished concrete waste and recycled plastic polymers(AIKTC, 2019-05) Dasgupta, Rohan; Khan, Suhail M [16DCE71]; Devekar, Shweta D [16DCE62]; Hodekar, Arbaz [16DCE63]; Patel, Najeeb [16DCE78]Long term performance of pavements depends upon the stability of its underlying soil. There are various methods of stabilizing subgrade soil which are both expensive and labour intensive. However, based on literature review, it was found that using demolished concrete waste and recycled plastic polymer beads in order to enhance the properties of the weak soil and making it suitable for engineering purpose can be a low cost and effective alternative for soil stabilization. Also, the current annual rate of generation of construction waste is 1183 million tonnes worldwide in which 11.4 to 14.69 million tonnes per annum is generated in India. Therefore, reusing demolished concrete waste and recycled plastic polymer beads as subgrade stabilizer proves to be environment friendly too. So there is a need to transform ineffective waste materials into effective subgrade materials. In this study, the initial properties of unstabilized soil sample (such as maximum dry density, optimum moisture content, CBR value and unconfined compressive strength) and the initial properties of waste concrete aggregates (such as specific gravity, moisture content, bulk density, aggregate impact value and aggregate crushing value) are determined. Then the unstabilized soil is mixed with varying proportions of waste concrete aggregates and recycled plastic polymer beads and its CBR values, maximum dry density, optimum moisture content and unconfined compressive strength is determined and compared with that of unstabilized soil, based on which the optimum dosage of stabilizer is suggested.Item Urban Issues And Mitigation Measures(AIKTC, 2021-05) Dasgupta, Rohan; SHAIKH, FAEZ AHMED MUSHTAQ AHMED (18DCE04); SHAIKH, AKBAR MOHAMMED SAEED (17CE50); YELUKAR, AHMED MOHAMMED KASIM (17CE61); NAKADE, MAKHDOOM ABDULAZIZ (18DCE09)URBAN POPULATION has been sharply growing since last several decades, and the rate of growth has been steadily increasing due to various factors such as economic reasons. In the future, not only the population in cities but also the number and size of cities are expected to grow. This profound growth in urbanization is imposing several serious problems on human and earth, such as pollution, deforestation and food scarcity. In our project, to learn and understand about such problems, we have selected a few cities from different parts of the world and assessed them on a wide spectrum of various parameters ranging from land use to transportation to architecture to environment and sustainability. Based on this research, we have selected a few urban problems, such as lack of open spaces, for further analysis. Then, we have studied about some cities which have successfully tackled these problems. Finally, we have presented a comparison of the selected cities highlighting the similarities and differences between them in a tabular format.Item Urban issues and mitigation measures: Case of developed cities(AIKTC, 2021-05) Dasgupta, Rohan; Jahagirdar, Sayyeda Zara; Shaikh, Faez Ahmed Mushtaq Ahmed (18DCE04); Shaikh, Akbar Mohammed Saeed (17CE50); Yelukar, Ahmed Mohammed Kasim (17CE61); Nakade, Makhdoom Abdulaziz (18DCE09)URBAN POPULATION has been sharply growing since last several decades, and the rate of growth has been steadily increasing due to various factors such as economic reasons. In the future, not only the population in cities but also the number and size of cities are expected to grow. This profound growth in urbanization is imposing several serious problems on human and earth, such as pollution, deforestation and food scarcity. In our project, to learn and understand about such problems, we have selected a few cities from different parts of the world and assessed them on a wide spectrum of various parameters ranging from land use to transportation to architecture to environment and sustainability. Based on this research, we have selected a few urban problems, such as lack of open spaces, for further analysis. Then, we have studied about some cities which have successfully tackled these problems. Finally, we have presented a comparison of the selected cities highlighting the similarities and differences between them in a tabular format.