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Article
Publication date: 4 June 2021

Niragi Dave, Ramesh Guduru, Anil Kumar Misra and Anil Kumar Sharma

The consumption of supplementary cementitious materials (SCMs) has increased enormously in the construction industry. These SCMs are often waste materials or industrial…

Abstract

Purpose

The consumption of supplementary cementitious materials (SCMs) has increased enormously in the construction industry. These SCMs are often waste materials or industrial by-products. This study aims to investigate the bond strength using reinforcing bars in Normal Strength Concrete (M20 grade) and High Strength Concrete (M40 grade), developed using SCMs and data was compared with concrete prepared with ordinary portland cement (OPC). The findings of the study will help in reducing the dependency on OPC and promote the utilization of waste materials in Construction.

Design/methodology/approach

In the present study, the bond behavior between the steel bars and the concrete was investigated in controlled, binary and quaternary concretes of M20 and M40 grades. Following the conventional procedures, samples were prepared and mechanical tests conducted (as per IS:2770–1 code for M20 and M40 grade concrete structures), which showed an improvement in the bond strength depending on the extent of overall calcium and silica content in these composite mixtures, and thus reflected the importance of vigilant utilization of used industrial waste in the OPC as a replacement without exceeding silica content beyond certain percentages for enhanced structural properties.

Findings

Experimental evaluation of bond behavior results showed a brittle nature for the controlled (OPC) concrete mixtures. While binary and quaternary concrete was able to resist the load-carrying capacity under large deformations and prevented the split cracking and disintegration of the concretes. Among different variations in the chemistry, for both M20 and M40 grades, the maximum bond strengths were observed for 10% Metakaolin + 10% Silica Fume + 30% Fly Ash + 50% OPC composition and this could be attributed to the fineness of the additives, better packing and enhanced calcium silicate hydrate (C-S-H).

Originality/value

Quaternary concrete may be a future option in place of OPC concrete. Very limited data is available related to the bond strength of quaternary concrete. Experimental analysis on quaternary concrete shows that its use in construction can reduce both construction cost and a burden on natural raw materials used to make OPC.

Details

Journal of Engineering, Design and Technology , vol. 20 no. 6
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 21 June 2019

Amit Srivastava, Dharmendra Kumar Srivastava and Anil Kumar Misra

The present study aims to demonstrate the performance assessment of flexible pavement structure in probabilistic framework with due consideration of spatial variability…

Abstract

Purpose

The present study aims to demonstrate the performance assessment of flexible pavement structure in probabilistic framework with due consideration of spatial variability modeling of input parameter.

Design/methodology/approach

The analysis incorporates mechanistic–empirical approach in which numerical analysis with spatial variability modeling of input parameters, Monte Carlo simulations (MCS) and First Order Reliability Method (FORM) are combined together for the reliability analysis of the flexible pavement. Random field concept along with Cholesky decomposition technique is used for the spatial variability modeling of the input parameter and implemented in commercially available finite difference code FLAC for the numerical analysis of pavement structure.

Findings

Results of the reliability analysis, with spatial variability modeling of input parameter, are compared with the corresponding results obtained without considering spatial variability of parameters. Analyzing a particular three-layered flexible pavement structure, it is demonstrated that spatial variability modeling of input parameter provides more realistic treatment to property variations in space and influences the response of the pavement structure, as well as its performance assessment.

Originality/value

Research is based on reliability analysis approach, which can also be used in decision-making for quality control and flexible pavement design in a given environment of uncertainty and extent of spatially varying input parameters in a space.

Details

Journal of Engineering, Design and Technology , vol. 17 no. 6
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 5 May 2020

Niragi Dave, Vaishali Sahu and Anil Kumar Misra

The purpose of this work is to study the in-situ performance of ternary geopolymer concrete in road repair work. Geopolymer cement concrete is an attractive alternative to…

Abstract

Purpose

The purpose of this work is to study the in-situ performance of ternary geopolymer concrete in road repair work. Geopolymer cement concrete is an attractive alternative to Portland cement concrete owing to environmental, economic and performance benefits. Industrial wastes, such as fly ash (FA) and ground granular blast furnace slag (GGBS), have been extensively used to manufacture unitary and binary geopolymer concrete with heat activation (at different temperature); however, it has indicated a limitation for its application in precast industry only.

Design/methodology/approach

In the present study, efforts have been made to produce a ternary geopolymer concrete mix, using GGBS, FA and Silica fumes (SF) in varied proportion mixed with 8 M sodium hydroxide (NaOH) as alkali activator and cured at ambient temperature. Total ten geopolymer concrete mixes have been prepared and tested for strength and durability properties and compared with control mix of ordinary Portland cement (OPC). Based on the mechanical properties of various mixes, an optimum geopolymer concrete mix has been identified. The control mix and optimum geopolymer have been studied for microstructural properties through scanning electron microscopy.

Findings

The in situ performance of the optimum mix has been assessed when used as a road repair material on a stretch of road. The ternary geopolymer concrete mixes (a) 65% GGBS + 25% FA + 10% SF, (b) 70% GGBS + 20% FA + 10% SF, and (c) 75% GGBS + 15% FA + 10% SF have resulted in good strength at ambient temperature and the mix 75% GGBS + 15% FA + 10% SF have shown good in situ performance when tested for road repair work.

Originality/value

Geopolymer concrete is gaining interest in many fields as an alternative to conventional concrete, as it not only reduces carbon footprint due to huge cement production but also provides a sustainable disposal method for many industrial wastes. This paper focuses on finding some alternative of OPC concrete to reduce dependency on the OPC.

Details

Journal of Engineering, Design and Technology , vol. 18 no. 5
Type: Research Article
ISSN: 1726-0531

Keywords

Open Access
Article
Publication date: 1 March 2008

Anil K. Dimri and Anil Kumar Misra

Present article seeks to analyze the impact of training programmes on the professional development skills of the academics working primarily at the Regional Centers of…

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Abstract

Present article seeks to analyze the impact of training programmes on the professional development skills of the academics working primarily at the Regional Centers of Indira Gandhi National Open University spread across the country. Article also seeks to analyze how the issues pertaining to the academics which include educational, administration, student support, supervision and maintenance of study centers. monitoring, staff development, survey and research activities, development of self instructional material, admission, examination, teleconferencing, interactive radio counseling, gyanvani, tele-learning center activities, maintenance of database, financial and administrative matters were taken up while imparting training. Interrelationship among the variables was also analyzed in order to asses the impact one variable on the other variables by using regression technique, i.e while dealing with the issues pertaining to educational administration the impact of training on monitoring was also assessed.

Details

Asian Association of Open Universities Journal, vol. 3 no. 1
Type: Research Article
ISSN: 1858-3431

Keywords

Article
Publication date: 23 January 2020

Tanuja Singh, Megha Kalra and Anil Kumar Misra

The paper aims to focus on adjacent buildings response, equipped with damper, to analyze the vibration reduction in the nearby buildings. The nearby buildings were also…

Abstract

Purpose

The paper aims to focus on adjacent buildings response, equipped with damper, to analyze the vibration reduction in the nearby buildings. The nearby buildings were also equipped with dampers. The occurrence of adjacent buildings with adequate or inadequate space in between is a common phenomenon. However, many a times not much attention is paid to provide or check gap adequacy or to connect the two buildings suitably to avoid pounding of two structures on each other. This study emphasizes the utility of providing a damper in between two adjacent buildings for better performance.

Design/methodology/approach

The two steel structures taken for study are prototype of two structures normally found in industrial structure such as power plant, where in one of boiler structure is often tall and braced and short structure of turbine building which is moment resistant, modeled in SAP. There could be similar such structures which are often connected to a platform or a walkway with a sliding end, so as not to transfer horizontal force to other structures. If the advantage of stiffness of tall braced structure is taken into account, shorter structure can be suitably connected to braced structure to transfer forces during seismic cases under nonlinear conditions, thereby avoiding pounding (incase gap is too less), reducing response and thus optimizing the section sizes. The structures were subjected to El Centro earthquake, to simulate MCE (which could be the other site TH scaled up as desired for real site PGA), and damper location and parameters were varied to find optimum value which offers reduced base shear, reduced top floor displacement and minimum inter story drift and highest energy absorption by fluid viscous dampers.

Findings

The findings show that taller structures, which are braced, have more stiffness; the effect of damper is more pronounced in reducing displacement of shorter moment resistant structure to the tune of 60%, with suitably defined Cd value which is found to be 600 KNs/m for the present study. Thus, advantage of stiffener structure is taken to leverage and reduce the displacement of shorter moment resistant structure in reducing its displacement under nonlinear conditions of seismic case.

Originality/value

This work shows the original findings, of the adjacent buildings response, equipped with damper, to analyze the vibration reduction on other buildings which were planned to be constructed nearby.

Details

Journal of Engineering, Design and Technology , vol. 18 no. 5
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 26 September 2019

Monica Malhotra, Vaishali Sahu, Amit Srivastava and Anil Kumar Misra

The purpose of this study is to investigate the effect of presence of buried flexible pipe on the bearing capacity of shallow footing. First, a model study is performed…

Abstract

Purpose

The purpose of this study is to investigate the effect of presence of buried flexible pipe on the bearing capacity of shallow footing. First, a model study is performed where shallow footing model is tested for its load settlement behavior, with and without the existence of buried PVC pipe lying vertically below the base of the footing.

Design/methodology/approach

The experimental set-up consisted of a steel box filled with sand at two different relative density values [RD = 50 per cent (medium dense) and RD = 80 per cent (dense sand)] and vertical load was applied on the model footing through hydraulic jack and reaction frame arrangement connected with a proving ring. Test results are verified numerically using commercially available finite element code PLAXIS 2D. With due verification, a parametric study has been conducted, numerically, by varying the range of input parameters, such as unit weight, angle of internal friction, diameter of buried conduit and the Elastic modulus of the soil to assess the pre cent reduction in the capacity of the foundation soil because of the presence of underlying buried flexible pipe.

Findings

Results show that for each footing, there exists a critical depth below which the presence of the buried conduit has negligible influence on the footing performance. When the conduit is located above the critical depth, the bearing capacity of the footing varies with various factors, such as geotechnical parameters of soil and location and diameter of the buried conduit.

Originality/value

It is an original paper performed to assess the presence of buried flexible pipe on the bearing capacity of the shallow footing.

Details

Journal of Engineering, Design and Technology , vol. 18 no. 3
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 23 December 2021

Anil Kumar and Rohit Kr Singh

The study aims to examine the relationship between retailer's performance and corporate social responsibility (CSR) practices in Indian context. The article introduces a…

Abstract

Purpose

The study aims to examine the relationship between retailer's performance and corporate social responsibility (CSR) practices in Indian context. The article introduces a new conceptual model considering the parameters as per the stakeholder theory perspective.

Design/methodology/approach

The authors conducted empirical research with CSR practices (CSRP) and other parameters to evaluate the retailers' performance using stakeholder theory. The authors present the results from 292 valid responses from the Indian retailers. The study used structured equation modeling (SEM) to present the analysis and the results.

Findings

Findings indicate that CSRP along with additional constructs loyalty (L), reputation (R), customer satisfaction (CS) and competitive advantage (CA) have positive and significant impact on organizational performance (OP).

Practical implications

The framework will serve as a guiding tool to the management of the retail outlets to examine carefully the link among CSRP with other variables presented in the study and subsequently to the retail outlet performance. The retailers must be more focused on the expectations and demands of the customers concerning products and services for better growth of the firms.

Originality/value

The uniqueness of the study lies in “CSR practices enabled integrated model” to examine the performance of the organizations. The proposed theoretical model would add value to the existing literature to help the retailers in process of their performance improvement.

Details

Benchmarking: An International Journal, vol. 29 no. 8
Type: Research Article
ISSN: 1463-5771

Keywords

Article
Publication date: 30 December 2020

Meghna Goswami, Rakesh Kumar Agrawal and Anil Kumar Goswami

Owing to the significant and critical role of ethical leadership in organizations, this study aims to explore and understand the perceptions about ethical leadership in…

Abstract

Purpose

Owing to the significant and critical role of ethical leadership in organizations, this study aims to explore and understand the perceptions about ethical leadership in organizations. It empirically investigates whether the individual attributes of gender, age, work experience, executive level and qualification of members and other demographic variables, such as industry and sector, affect the perception of members toward ethical conduct of their supervisors.

Design/methodology/approach

This is a quantitative study where the analysis is based on the data collected from 419 members of 3 different industries, namely, public sector research and development organizations, information technology organizations and academic universities and colleges.

Findings

The results reveal that perception of ethical leadership does not vary across gender and qualification of members but varies across age, work experience, management level, industry and sector.

Practical implications

This study helps to understand the importance and role of various individual attributes that affect the perception of ethical leadership by followers. This study will make leaders to be more aware and behave in ethical manner with respect to different groups of followers.

Originality/value

Because of occurrence of many scandals and fraudulent behaviors in organizations, business ethics has caught the attention of policy makers, corporate organizations and academic. Ethical leadership is very crucial for organizational success on a sustainable basis. To the best of authors’ knowledge, this study is among the early studies conducted to investigate the influence of the individual attributes and other demographic variables on the perception of members toward ethical conduct of their supervisors.

Details

International Journal of Ethics and Systems, vol. 37 no. 1
Type: Research Article
ISSN: 2514-9369

Keywords

Article
Publication date: 4 February 2022

Mohammad Nazim, Raj Kumar Bhardwaj, Anil Agrawal and Afroz Bano

This study aims to analyze Open Access (OA) publishing trends and policy perspectives in India. Different aspects, such as the growth of OA journals, digital repositories…

Abstract

Purpose

This study aims to analyze Open Access (OA) publishing trends and policy perspectives in India. Different aspects, such as the growth of OA journals, digital repositories, the proportion of OA availability to research literature and the status of OA mandates and policies are studied.

Design/methodology/approach

Data for analyzing OA trends were gathered from multiple data sources, including Directory of Open Access Journals (DOAJ), OpenDOAR, SCImago and Web of Science (WoS) databases. DOAJ and OpenDOAR were used for extracting OA journals and digital repository data. SCImago Journal and Country ranking portal and WoS database were used to obtain Indian publication data for assessing the proportion of OA to research literature. ROARMAP was used to study OA mandates and policies adopted by universities, research institutions and research funders in India. OA mandates and policies of major regulatory bodies and funding agencies were also reviewed using secondary sources of information and related websites.

Findings

India ranks number 15 and 17 globally for OA journals and OA repositories, with 317 journals and 98 repositories. Although India’s proportion to OA publications is 23% (7% below the world average of 30%), the annual growth rate of OA publications is around 18%. Although the governing bodies and institutions have made efforts to mandate researchers to adopt OA publishing and self-archiving, its implementation is quite low among Indian researchers, as only three institutions (out of 18 listed in the ROARMAP) are defined the embargo period. Funding agencies in India do not provide financial assistance to authors for the payment of Article Processing Charges despite mandates that research is deposited in OA repositories. India lacks a national OA policy but plans to implement a “one nation one subscription” formula to provide OA to scientific literature to all its citizens.

Research limitations/implications

The study has certain limitations. Because much of India’s research output is published in local journals that are not indexed in WoS, the study recommends conducting further analyses of publications using Scopus and other databases to understand the country’s OA publishing proportion better. A further study based on feedback from different stakeholders through a survey may be conducted for formulating a national OA policy.

Originality/value

The study is the first that used multiple data sources for investigating different facets of OA publishing in India, including OA journals, digital repositories, OA research output and OA mandates and policies for publicly funded research. The findings will be helpful for researchers and policymakers interested in promoting OA adoption among researchers worldwide.

Details

Global Knowledge, Memory and Communication, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9342

Keywords

Article
Publication date: 3 January 2017

Anil Kumar Manchikatla and Rajesh H. Acharya

The purpose of this paper is to study the effectiveness of insider trading enforcement actions in India and international dimensions.

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Abstract

Purpose

The purpose of this paper is to study the effectiveness of insider trading enforcement actions in India and international dimensions.

Design/methodology/approach

The research is based on the insider trading regulations and amendments made during the period 1992-2015.

Findings

The notable observation of the study is the dearth of insider trading conviction and the paucity of prosecution for insider trading offences in India. It is difficult to resist the conclusion that surveillance and enforcement matter more than the drafting of the relevant statutes and regulations in emerging markets. Whereas, developed countries have a better record of prosecution than emerging markets.

Research limitations/implications

Future research may explore the factors that hinder effective regulation and recommend new methods to increase the impact of Securities and Exchange Board of India insider trading regulation.

Originality/value

The current paper presents guidance for the foreign institutional investors, regulators and market participants on insider trading regulation and prosecution in India.

Details

Journal of Financial Crime, vol. 24 no. 1
Type: Research Article
ISSN: 1359-0790

Keywords

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