MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

School of Civil Engineering

Construction projects and its complexities are increasing in recent years along the demand of customers towards the quality of construction projects in its high level. The implementation of qualitymanagementsystem(QMS) has been a solution to achieve the required level of quality as per ISO 9001 standards. The paper includes major factors affecting the quality of residential buildings during the construction particularly in execution phase and the level of management commitment towards the implementation of quality management at residential construction projects. The data was collected through questionnaire; interview and document review which includes visiting ofsome construction companies and conduct the questionnaire survey then analysis in quality management to find the results and conclusion. The findings have shown that the companies need of a higher level of management commitment with respect to critical parameters towards the implementation of quality management at residential construction projects.

World University root node

Engineering and Technology

International Research Journal of Engineering & Technology

Quality Management System(QMS)at Residential Construction Project

India loses 3% of its GDP due to road accidents. Significance of Geopathic stress as a causative factor of road accidents has been studied by few researchers; however its effect on Pavement distresses and hence road accident is yet unexplored. The aim of this research is to determine the correlation between average number of accidents, Pavement Condition Index (PCI) values and Geopathic stress. Accident data was collected from Pune traffic department for 3 years period from 2015-16 to 2017-18. Based on the number of accidents during this period accident blackspots were found. On each black spot pavement distresses survey was carried out and its condition was analyzed by Indian Road Congress (IRC) 82:2015 code method. At these accident blackspots detection of geopathic stress was done by using 2 copper L-rods, lecher antenna. Intensity was measured in terms of electrical and magnetic field. Electrical field reading was measured using Esmog-spion and magnetic field reading was measured by magnetometer. Data was analyzed using Karl Pearson’s correlation coefficient and a linear regression model is developed for average number of road accidents (Ā) with Pavement Condition Index (PCI). Utility of the equation is for forecasting the number of fatal accidents at similar black spots based on their pavement distress condition. A further attempt is to investigate the effect of electric and magnetic characteristics of geopathic stress on road accidents.

Fulltext

International Journal of Innovative Technology and Exploring Engineering

Geopathic Stress:Apossible cause of pavement Distresses and Road Accidents

PurposeThe paper is an attempt to evaluate the efficiency of passive control techniques such as base isolation system (e.g. Lead/Rubber Bearing) and fluid viscous dampers subjected to earthquake ground motions and underground blast-induced vibrations. Two moment-resisting steel frame buildings are analyzed to evaluate the structural responses under dynamic excitations. The effect of vertical irregularity on the performance of passive control techniques in mitigating the responses of the building is also studied.MethodsNon-linear dynamic analysis has been conducted on regular and irregular steel structures. The study investigates the effect of isolation period on the structural responses. The isolators are designed based on the design procedures developed by various researchers. The technical specifications of fluid viscous dampers have been selected from M/s Taylor Devices, USA.ResultsThe structural responses and energy dissipated by these control techniques is evaluated and a comparative study is also carried out amongst control techniques under blast and seismic excitations.ConclusionsBoth the selected passive control techniques have proved to be very effective in reducing the structural responses and forces induced in the building owing to ground-induced vibration.

Journal of Vibration Engineering & Technologies

Performance Evaluation of Moment-Resisting Steel Frame Buildings Under Seismic and Blast-Induced Vibrations

The use of activated carbon (AC) as a strong adsorbent was commonly used. This work deals with the study of textile industry wastewater (dye) adsorption on AC produced from Bamboo and Green coconut shell through chemical activation method. The effect of various process parameters such as the amount of adsorbents, initial concentration of dye, pH, contact time, temperature and agitation speed on percentage removal of dye on the activated carbon i.e. Bamboo activated carbon (BAC) and Green Coconut Shell Activated carbon (GCSAC) batch adsorption tests were investigated. Testing was performed for quantitative description of Langmuir and Freundlich equilibrium adsorption isotherms. Based on the experimental findings, the equilibrium was observed in 6 hours. Langmuir isotherm was the best suited for the adsorption of dye, with a maximal adsorption capacity of 142.86 mg / gm. The removal of dye by the use of BAC has been found to be greater than GCSAC. © Published under licence by IOP Publishing Ltd.

School of Chemical Engineering

IOP Conference Series: Materials Science and Engineering

Batch Adsorption Studies on Treatment of Textile Industry Effluent using Bamboo and Green Coconut shell Activated Carbon

Effect of Varying Water-Cement Ratio on Recycled Polypropylene Fiber Reinforced Concrete for Sustainable Construction

This study investigated the potential of rice straw ash (RSA) (produced from open-air burning of rice straw) and microsilica (MS) as a pozzolan in rigid pavements. Proportions of RSA (5%–30%), MS (2.5%–10%) and combination of RSA (5%, 10%) + MS (5%, 7.5%) by weight of OPC in the paste and mortar were studied. Various tests like normal consistency, setting time, soundness and X-ray diffraction (XRD) analysis were performed on the cementitious paste. It was observed that the admixing of MS did not affect the setting times and soundness of the cement paste but increased the normal consistency while admixing of RSA remarkably increased all of them. It was also found that OPC can be replaced by RSA up to 10% and by MS up to 7.5% in mortar without any loss of compressive strength. In the assessment of mechanical strengths of concrete, it was found that RSA and MS increase various strengths of concrete up to 7% and up to 24%, respectively. Furthermore, these results were validated by XRD and Scanning electron microscope (SEM) analysis. In the evaluation of durability properties of concrete, it was observed that MS and RSA significantly increase the defense mechanism of concrete to water absorption, chloride ion penetration, acid attack and accelerated carbonation curing (ACC). The design thickness of the concrete slab of the selective concrete mixes was computed as per structural design in accordance with IRC 58:2015. The cost comparison was made on the basis of the total cost of 1 m3 of concrete and the total cost of constructing 1 km of 4 lane National Highway (NH) (one-way carriageway). The admixing of 10% RSA reduces the slab thickness by 11%, cost of 1 m3 of concrete by 3% and cost of constructing NH by 14%. © 2020 Elsevier Ltd

Construction and Building Materials

A comprehensive investigation on application of microsilica and rice straw ash in rigid pavement

Activated carbon prepared from agro-waste material i.e. green coconut shell and bamboo using ZnCl2 as an activation agent in an adsorption column (fixed bed) was studied for the treatment of textile industry effluent. The experiment with the fixed-bed column was performed by different process parameters such as 200, 400 and 600 mg/L as different initial concentration of dye, at different bed heights of 100 mm, 200 mm, and 300 mm, and 10, 15, and 20 mL/min as different flow rates. The findings demonstrated that both breakthrough and exhaust times increase, with the height of the bed being increased, but decrease with the concentration of the dye inlet. The breakthrough point was found to depend upon the bed height and flow rate. The maximum uptake capacity was obtained when a 200 mm bed depth was used at an inlet concentration of dye 200 mg/L with a flow rate of 15 mL/minute. It was observed that the bamboo activated carbon BAC has high carbon content, and has a high potential for dyes removal and may become capable substitutes for costly activated carbon. The adsorption capacities of BAC, GCSAC are at par with respect to each other, the overall process scheme may become economical as these materials are available as wastes and practically free of cost. © 2020 Elsevier Ltd. All rights reserved.

Materials Today: Proceedings

Adsorption of textile industry effluent in a fixed bed column using activated carbon prepared from agro-waste materials

This work has focused on investigating the comparative performance of the conventional type of offshore jacket substructure and a modified twisted-tripod jacket type (MTJ) under static and dynamic loading environment. Conventional four-legged and four number of MTJ structures, with a finite number of leg twisting angles from 0° to 90°, for supporting 5 MW NREL wind turbine were analysed for a selected site. In order to compare performance under dynamic loading, the dimensions of the structures were designed iteratively using static stress analysis to ensure that all structures had a similar level of load-carrying capability. Static analyses were performed using SACS v8 and models were imported to SAP-2000 for dynamic response spectrum analyses. The results obtained here reveal that, in addition to savings in material costs, the modified twisted-tripod jacket performs more efficiently than conventional four-legged jackets. This study has established a framework of procedure for simplified analysis of wind turbine jackets under dynamic loading environment. © Springer Nature Switzerland AG 2020.

Techno-Societal 2018 - Proceedings of the 2nd International Conference on Advanced Technologies for Societal Applications

Structural performance assessment of offshore wind turbine jackets-a comparative study under dynamic loading environment

In this research, the effects of the acidic environment and accelerated carbonation curing (ACC) on concrete admixed with rice straw ash (RSA), microsilica (MS) and combination of both were evaluated. The loss of mass and compressive strength of concrete admixed with RSA and MS were observed at 28 and 365 days of water curing followed by 30 days of immersion in two acidic solutions of 2.5% concentration, i.e., hydrochloric (HCl) and sulphuric (H2SO4) acid. The least loss of mass and compressive strength under acidic environment were observed in concrete admixed with a combination of 10% RSA and 5% MS (mix R2M3). The percentage loss of compressive strength (compared to strength at 58 days of water curing) and percentage loss of mass (compared to initial mass before acidic immersion) of mix R2M3 at 28 days of water curing were 3.69% and 2.19% respectively under HCl immersion and 1.81% and 1.27% respectively under H2SO4 immersion. The corrosive impact of HCl on concrete was higher as compared to H2SO4. The characterization of concrete mixtures after acidic immersion was performed using XRD and SEM analysis. The mechanical strength and carbonation depth of concrete admixed with RSA and MS were observed at 28 days of combined curing (14 days of water curing, 14 days of ACC). The maximum increase in the strength of concrete at 28 days of combined curing as compared to 28 days of water curing was found in mix R2M3. Also, the carbonation depth was highest in mix R2M3 (17 mm). © 2019 Elsevier Ltd