iosr-JMCE   Volume-17 ~ Issue-2 ~ mar. - apr. 2020

Abstract: The current paper presents an experimental and numerical investigations to study the shear behavior of simply supported natural and recycled coarse aggregate concrete beams. A total of eight beams using two different types of aggregate ''natural and recycled" were cast and tested. The beams were divided into two groups, the first group consists of four solid beams, while the second one consists of four beams with openings in the shear zone. The beams were subjected to a symmetric two-point loads for this purpose, four different replacement ratios of natural coarse aggregates (NCA) by recycled coarse aggregates (RCA): 0% (reference mix), 25%, 50%, and 100%. Subsequently, Numerical results were compared with the experimental ones to check the validity of the model........

Keywords: Recycled Coarse Aggregates, R.C. beams, Opening, Shear, ANSYS

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Abstract: Climate change possesses a threat to life on earth. Number of natural calamities like cyclone, drought, flood, rising of sea level, severe heat and cold wave, melting of snow etc. are some of ready effects that has been directly felt in variation portion of the globe. Climate change can be defined broadly as a change in the state of the climate that can be identified by changes in the mean or the variability of its properties that persist for an extended period typically decade or longer. It refers to any change in climate over time whether due to natural variability or as a result of human activity. This study may be a small step towards recognizing the climate change and its impact on water bodies of the study area. The statistical analysis shows the characteristics of the rainfall.........

Key words: Climate change, Rainfall, Statistical analysis, Trend, IDW.

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[2]. Merwade, V.M., Maidment, D.R.,Goff, J.A., 2006. "Anisotropic consideratory while interpolating river channel bathymetry". Journal of Hydrology. 331 (3-4), 731-741.
[3]. Leonard Rebort Gardner., 2009. "Assessing the effect of climate change on mean annual runoff". Journal of Hydrology. 379, 351-359.
[4]. Grillakis M.G., 2011. "Climate change impact on the hydrology of spencer Creek watershed on southern Ontario, Canada". Journal of Hydrology. 11-28.
[5]. R.P. Silberstein., S.K. Aryal., J. Durrant, M. Pearcey., M. Braccia.., S.P. Charles., G.A. Hodgson., M.A. Bari., N.R. Viney., D.J. McFaelane., 2012. "Climate change and runoff in south-western Australia". Journal of Hydrology. 475, 441-455.

Abstract: The use of waste materials (metal scraps, plastic and crop) to produce engineering components is currently attracting so much interest due to their low cost, availability and environmental impact. In this study, aluminium (Al) ingot prepared from beverage can scraps (BCS) was characterized. The composition, density, tensile strength, compression strength, wear rate, thermal conductivity, hardness, storage modulus, loss modulus and microstructure of the recycled Al ingot were determined. The result of the analysis showed the composition of the Al ingots to be 95.62%Al, 1.62%Mg, 1.32%Si, 0.693%Mn, 0.437%Fe, 0.162%Cu, 0.097%Zn, 0.024%Ti, 0.017%V, 0.006Ni, 0.005%Cr and 0.008%Pb. The density, ultimate strength, yield strength, percentage elongation, compression strength, hardness, wear rate, coefficient of friction, thermal conductivity and coefficient of thermal.........

Key words: Beverage Can Scraps, Aluminium Ingot, Recycling, Characterization, Mechanical & Thermal Properties

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Abstract: The point of this work is to break down of the exhibition for different mixes of the Diesel, Kerosene and Olive Oil biodiesel. Tests have been completed utilizing a solitary chamber, four-stroke, variable pressure proportion CI engine filled with Olive Oil biodiesel and its mixes with Diesel and Kerosene. The test has been led utilizing the Olive Oil was mixed with (Diesel 70% + Kerosene 30%) by rates of (Diesel 70% + Kerosene 30%) 95% + Olive Oil 05%, (Diesel 70% + Kerosene 30%) 90% + Olive Oil 10% and (Diesel 70% + Kerosene 30%) 85% + Olive Oil 15%.The percent biodiesel (Diesel100, DK, DK95O5, DK90O10, DK85O15) and load (2, 4, 6, 8, 10 kg) are considered as input parameters. The responses for the experiments are specific fuel consumption (SFC), brake thermal efficiency (BTHE), mechanical efficiency (ME) and fuel consumption. Taguchi approach is used to reduce the number of experiments. The optimum sets of the parameters are selected on signal-to-noise ratio basis.........

Key words: Diesel, Kerosene, Olive Oil, Performance.

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[3]. Samaras C, Meisterling K. Life cycle assessment of greenhouse gas emissions from plug-in hybrid vehicles: implications for policy. Environ Sci Technol. 2008: 42(9): 3170–3176p.
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[5]. Wang M, Wu M, Huo H. Life-cycle energy and greenhouse gas emission impacts of different corn ethanol plant types. Environ Res Lett. 2007; 2(2): 024001.

Abstract: Due to old methods of construction dam was under designed and with use of poor materials of construction it is prone to collapse due to aging. Moreover the magnitude of peak floods to be used for the spillway design was based upon rough estimates which do not according to the modern estimates of extreme floods as suggested by experts of the International committee on large dams and the seismic potential was also under- estimated thus there are more chances for the dam to failure and such an accident will result in economic loss of states which mainly depends on river water. So keeping these points in mind an analysis of Jawai dam failure which is situated.....

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Abstract: BIM is defined as the process of design, construction and use of the building or facility infrastructure using information about virtual objects[1]. Previous studies concluded that BIM implementation resulted in increasing the design cost by 6.5%,11% and 17% for Schematic Design phase, Design Development phase, and Construction Documentation phase, respectively. However, there is still a need to compare between BIM and CAD technologies relative to budgeted and actual man-hours. The objective of this paper is to compare between BIM and CAD technologies in different kinds of projects, relative to budgeted and actual man-hours......

Key Word:BIM, CAD, design man-hours.

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