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Investigating the effect of poor handling of concrete ingredient in the properties of fresh and harden concrete

Construction materials management is an important element in the management of construction projects. One of the construction materials widely used in construction projects is concrete. Concrete is one of the important constituents of many of the construction projects, in addition to its subjectivity to variability, requires a close and thorough care and handling in construction projects. The constituents of concrete, in which majority of them occur naturally, are subjected to a wide range of variability and quality problems. Therefore, with this respect, a research was carried out and the objective of this experimental study was to investigate the effect of poorly handled concrete ingredients in the properties of fresh and harden concrete to assess the effect. The ingredients were collected from Five (5) active construction sites around the study area and they wear ready for use when the sample was taken for the research purpose. A laboratory test was conducted for each ingredient before the preparation of concrete. After that mix design was prepared specifically for C-25 concrete then by using weight batching the ingredients are introduced to electrical mixer, after the mix prepared, workability, setting time, and compaction factor test was conducted to identify the properties of the fresh concrete and then a total of 45 concrete cube sample was cast or three (3) sample for each source of the ingredients and for each testing day, the compressive strength test was conducted on the 7th, 14th and 28th day. For the workability test, both slump test and flow table tests were conducted and the result shows that the concrete mix has high workability and the slump is collapse slump and this result is due to the high-water content on both coarse and fine aggregate. the initial setting time of the concrete mix was greater than the ASTM standard specification due to the impurities present in the mixing water also the mix has a high compaction factor test result due to the high workability of the mix or due to self-consolidating property of the concrete mix. The average compressive strength of the concrete after 28th day was not satisfied with the desired strength also the 7th day and the 14th-day compressive strength was less than 60% and 90% respectively of the desired 28th day compressive strength. The result is occurred due to low aggregate crushing value, high silt content of fine aggregate, water impurities and high-water content in the mix. The result shows that the effect of poor handling of concrete ingredients in the properties of fresh and hardened concrete.

Published by: Mikiyas Alemeshet Abera

Author: Mikiyas Alemeshet Abera

Paper ID: V5I6-1171

Paper Status: published

Published: November 22, 2019

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Dissertations

Study of ZnO Nanoparticles for Gas Sensing Application

This report presents a brief discussion on the importance of ZnO nanomaterial in gas sensing applications. Recent developments on ZnO-based gas sensors have been reviewed. The primary work in this report involves the study of the Raman spectrum of a ZnO wurtzite sample. Using the group theoretical background, the various vibrational modes of the ZnO wurtzite have been studied at length. Finally, the defect properties of ZnO wurtzite, mainly the oxygen vacancy defect which plays an important role in a gas sensing application, have been investigated

Published by: Mriganko Bastav Chakravertty

Author: Mriganko Bastav Chakravertty

Paper ID: V5I6-1160

Paper Status: published

Published: November 22, 2019

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Review Paper

Start interlock device for motorcycles

Start Interlock Device or SID might be a component placed in inside a vehicle that needs the rationale power to inhale into the gadget before starting the vehicle. On the off chance that the SID recognizes that the liquor level or blood liquor content (BAC) is over the acknowledged value, the motor won't start. On the off chance that the intention power can't give a clean inhale test, the SID can log the occasion, caution the thought process power, thus start partner alert. the point of the SID is to stop mishaps on account of driving underneath the impact (DUI). With the expansion of two-wheel vehicles inside the Philippines on account of its quality and purchasing power, SIDs square measure still basically put in on four-wheeled vehicles. regardless of whether riding a bicycle once an alcoholic is a ton of hazardous, there square measure exclusively a little assortment of putting in gadgets on cruisers and bikes. the general target of this investigation was to build up a framework with equipment and programming framework components that will execute SID on bikes. The investigation used a distinct strategy of examination. The examination conjointly completed the accompanying: the infrared ought to have a point-to-point correspondence, the breathalyzer on the head protector should respond to aging liquor, the microcontroller on the bicycle should make due with all IR signals from the cap Associate in Nursing the translate it and in this manner the GPS ensure should have a patent observable pathway correspondence with the GPS satellites.

Published by: Aakarshit Sharma

Author: Aakarshit Sharma

Paper ID: V5I6-1182

Paper Status: published

Published: November 22, 2019

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Research Paper

Cloud and high-performance computing tools for sequence alignment in bioinformatics

Pairwise Sequence alignment and Multiple sequence alignment are the major challenges for the Bioinformatics application. In recent years there is good development and progress in this field by introducing good Tools or software’s, through which the High-Performance computing in alignment is achieved. This kind of alignment need a best Database for searching the protein’s and nucleotides. This paper talks about recent tools which evolved for Database searching and parallel computing of huge biological data. This is useful for the researchers or practitioners who are working for bioinformatics applications.

Published by: Dindi Dhanunjai, Kotur Guna Pragna

Author: Dindi Dhanunjai

Paper ID: V5I6-1166

Paper Status: published

Published: November 22, 2019

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Research Paper

An efficient MIMO antenna for C-band Wireless Communication

In this paper, an efficient MIMO antenna with single-band operating in C-band (4.8 - 5.0 GHz) has been proposed for wireless communications. The proposed design consists of four antennas and it is parallel to the edge of the system which is unlike conventional 5G antennas. It can be easily applied to the new technology used in mobile phones i.e. bezel-less mobile phones. The simulation result shows a reflection coefficient of less than -15 dB with a bandwidth of 0.2 GHz (4.8 - 5.0 GHz), and it will cater to 5G communication applications.

Published by: Vinamra Agrawal, Aman Bansal, Uchaansh Lodhi

Author: Vinamra Agrawal

Paper ID: V5I6-1163

Paper Status: published

Published: November 22, 2019

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Research Paper

Leaves recognition using back propagation Neural Networks

The main goal of this project is to develop a software model, to suggest remedial measures for pest or disease management in agricultural crops. Using this software, the user can scan an infected leaf to identify the species of leaf, pest or disease incidence on it and can obtain solutions for its control. The software system is divided into modules namely: Leaves Processing, Network Training, Leaf Recognition, and Expert advice. In the first module edge of the leaf and token values found. The second module deals with the training of the leaf to the neural network and finding the error graph. The third and fourth modules are to recognize the species of the leaf and identify the pest or disease incidence. The last module is aimed at matching the recognized pest or disease sample on to the database wherein pest-disease image samples and correcting remedial measures for their management are stored.

Published by: Rishabh Raj

Author: Rishabh Raj

Paper ID: V5I6-1157

Paper Status: published

Published: November 18, 2019

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