Recent Submissions

  • Interplay between Contract and Public law: Implications for Major Construction Contracts and Transparency

    Mante, Joseph; Ndekugri, Issaka E. (Sweet and Maxwell, 2017-02-17)
    The relationship between infrastructure project owners and their contractors is generally governed by contract law. However, where the project owner is a State, there are often additional requirements from public law to be complied with. The challenges posed by the interplay between public law and private contractual relationships in such context have been highlighted by litigation concerning the effect of a constitutional requirement that any international business and economic transaction to which the Government of Ghana (GoG) is a party is not to become operational without parliamentary approval. Through analysis of five decisions of the Supreme Court of Ghana on the interpretation of this constitutional provision, this piece highlights the devastating consequences that inattention to public law could have on parties who contract with the GoG and its agencies. It also examines the extent to which the judicial interpretation of the constitutional requirement really furthers the interests of transparency and openness that it was intended to promote.
  • Time delay and cost overrun of road over bridge (ROB) construction projects in India

    Venkateswaran, Chandrasekaran Balaji; Murugasan, Rajiah (Penerbit Universiti Sains Malaysia, 2017-11-24)
    This paper aims at studying the factors that contribute to time delay and cost overrun of Road over Bridge (ROB) projects in India. Data for the research study were collected from 62 respondents, including owners, contractors, and consultants of ROB projects. The literature survey and the questionnaire survey helped in identifying 29 factors. The topmost factors were ranked based on the frequency of occurrences. The correlation among owners, contractors, and consultants on ranking of factors was derived by Spearman rank correlation. Factor analysis was used to classify the factors into groups and identify the key groups responsible for time delay and cost overrun of projects. This study will help all stakeholders of ROB projects in India to understand the factors and thereby reduce time delay and cost overrun as well as expedite their completion.
  • Assessment of Energy Consumption Pattern and Energy Conservation Potential at Indian Airports

    Malik, Kanika (Penerbit Universiti Sains Malaysia, 2017-11-24)
    With the growing energy crisis, the need to conserve and manage energy resources in a responsible manner is being increasingly felt by different sectors of the economy. India’s civil aviation industry is on a high-growth trajectory. India aims to become the third-largest aviation market by 2020 and the largest by 2030. The rise in the energy needs of airports to satisfy this demand has led to great concerns about the environmental impact of the aviation industry. Long term sustainability of airports is getting more important in this scenario. As demand for air travel continues to grow, aviation’s environmental impacts need to be addressed while continuing to maximize its social and economic benefits. This paper presents the problem of high energy consumption in the aviation sector by analysing the energy consumption data of three Indian airports in the composite climatic zone of India and the imperative need to design energy efficient airports. Data was collected from energy audits, which were conducted over a period of one year. The collected information was used to perform an analysis for assessing specific measures to reduce energy use at the passenger terminal building (PTB) and to identify possible actions for improving the airport performance.
  • Identifying and Addressing Critical Issues in the Indian Construction Industry: Perspectives of Large Building Construction Clients

    Loganathan, Santhosh; Srinath, Purushothaman; Mohan, Kumaraswamy; Kalidindi, Satyanarayana; Varghese, Koshy (Penerbit Universiti Sains Malaysia, 2017-11-24)
    The Indian construction industry faces increasing challenges amidst serious performance shortfalls. Confronting similar issues in past decades, other countries such as the UK, USA, and Singapore commissioned high-powered studies and set up industry development bodies to address their own priorities. Initiatives in other countries are briefly reviewed before outlining the launch of the “Construction Industry Improvement Initiative India” (Ci3 India) that aims to address our own challenges. This paper focuses on identifying and launching a platform to address the current and imminent critical issues in the Indian Construction Industry. Nineteen critical issues were identified, verified, and validated through four focus group sessions at two Regional Roundtables with 54 high calibre large building construction clients, academicians, and other invited experts. The identified issues were consolidated to 10 Action Items. Seven Action Teams were then mobilized to work on the 10 Action Items. Having consolidated a base consensus of clients on the way forward, it was also proposed to develop a “Construction Clients’ Charter” that will set out basic principles, protocols, and targeted good practices by lead clients, who by voluntarily agreeing and implementing these together, could catalyse significant industry improvements.
  • Management of construction waste in nuclear and thermal power plant projects in India

    Seethapathy, Sathiyamurthy; Henderson, Jane Helena (2017-11)
    Waste in construction is important both from the perspective of productivity and from environmental considerations. Mostly actual quantum of waste generation exceeds the percentage envisaged initially, causing needless utilization of both natural and human resources. It is understood from project and construction managers during site survey that there is plenty of scope for enhancing project productivity simply by minimizing waste out of construction and also saving the cost as well as extraction of natural resources. This paper attempts to identify the causes towards generation of waste of different types of building materials during various stages of construction in different power plant projects in India. Subsequent to identification, methods are proposed to mitigate the generation of construction wastes by adopting appropriate construction and management checks and methods, which allow waste reduction. The use of various building materials in different types of projects has different impact on the amount of waste generation, environment, and cost. Research data were gathered from the analysis of five power plant projects under construction or already completed in different states in India. The causes of such occurrences of each item and details have been analysed from the questionnaire survey and the same was processed for normalizing, data cleaning, and reliability analysis done through SPSS. The result of the first questionnaire was used along with site inputs/factual data to project the tabulation of perception versus reality. Furthermore, a second questionnaire was initiated for the validation of the above using non parametric statistic test and suitable recommendations were given to reduce wastage. The research paper reveals the major root causes for material wastage in construction of power plant projects and proper awareness to be created to the relevant project team by training. The findings of this paper would help in enhancing project productivity during construction, cost savings to the extent of 1.667% to 1.941% of total project cost and minimizing the extraction of natural resources.
  • A critical review of factors affecting manpower and equipment productivity in tall building construction projects

    Parthasarathy, Mudumbai Krishnaswamy; Murugasan, Rajiah; Murugesan, Kavitha (2017-12-05)
    Developing countries have seen an increase in construction of tall buildings in metropolitan cities due to space constraint. The construction of tall buildings in developing countries is undertaken as a combination of manpower and equipment to economize costs. This combination or interface of manpower and equipment, particularly in the basic activities such as concreting, reinforcement, formwork, blockwork, and plastering affects productivity of both the resources. This research aims at studying the factors affecting productivity of manpower and equipment at the micro level for the basic activities of construction for tall building projects. The factors have been further grouped and combined as sections. Responses collected through questionnaire survey from 109 personnel associated with the construction of 72 tall buildings in different geographies of India have been analysed using theoretical tools like frequency index, Spearman's rank correlation coefficient, and factor analysis. The factors have been prioritized in descending order of frequency indices. Based on analysis, it is found that factors in human and planning groups are more influential and affect manpower and equipment productivity significantly. Contract managers and cost engineers can use this study to make allowance while analysing productivity and estimating costs for tall buildings having combined usage of manpower and equipment.
  • Investigating the knowledge about health

    Narinder Menghre and Subashini Suresh; School of Technology, University of Wolverhampton (COBRA, 2013-09-10)
    The employment of migrants in the UK construction industry is growing annually particularly in the West Midlands. A research commissioned by the Institution of Civil Engineers investigated welfare and health and safety (H&S) of migrant workers in the South East of England. This research investigates the West Midland based North-Indian migrants’ awareness of issues related to health and safety on a construction site, as there seems to be no empirical evidence of any study carried out in H&S in other parts of England. A qualitative research approach was adopted with ten semi-structured interviews lasting an average of 25 minutes. Thematic analysis has been carried out on data acquired from interviews. The study revealed that migrants are employed in both skilled and unskilled jobs. They are often exploited for the fact that they have low English language skills. They have low health and safety knowledge and are paid significantly below the UK National Minimum Wage. This paper highlights to the industry and academia key aspects of safety awareness by immigrant workers in West Midlands. Further research is necessary to understand in a comprehensive way the situation faced by the migrants in order to implement specific measures.
  • An Electron Microscope Study of Biomineralisation for Geotechnical Engineering Purposes

    Wilkinson, Stephen; Rajasekar, Adharsh (Springer, 2018-09-21)
  • New offsite production and business models in construction: priorities for the future research agenda

    Goulding, J.S.; Pour Rahimian, F.; Arif, M.; Sharp, M.D. (Taylor and Francis, 2014-03-11)
  • Assessing sustainability of employee suggestion schemes: a framework

    Arif, Mohammed; Rizvi, A.; Lasrado, Flevy (Emerald, 2015-11-16)
  • Creating a better healing environment in Qatari healthcare sector: Exploring the research agenda for the future

    Alhorr, Yousef; Arif, Mohammed; Bano, Tabassum; Egbu, Charles; Mazroei, Ahmed; Elsarrag, Esam (Elsevier, 2015-06)
  • Knowledge sharing maturity model for Jordanian construction sector

    Arif, Mohammed; Al Zubi, Mohammed; Gupta, Aman Deep; Egbu, Charles; Walton, Robert O.; Islam, Rubina (Emerald, 2017-01-16)
  • Developments in the United Kingdom Dispute Resolution Process

    Akintoye, Akintola; Renukappa, Suresh; Lal, Hamish (ASCE, 2015-02)
    It is generally recognized that the U.K. construction industry is associated with low profit, delay in payments, cash flow concerns, short-term relationships compared with other industries, and high levels of business failure. In particular, claims and disputes have proliferated in the industry largely due to unfair payment practices. Therefore, to encourage a swifter and more economic method of resolving construction disputes by way of adjudication, the U.K. Housing Grants, Construction and Regeneration Act 1996 (HGCRA) came into force on October 1st, 2011in England andWales, and November 1st, 2011 in Scotland. This study presents the HGCRA 1996 Act—highlighting its strengths and weaknesses—along with the new 2009 Construction Act. The study additionally presents awareness of the new Act, key reasons for amending the HGCRA 1996 Act, and the impact of key changes in the Act on the dispute resolution process. The paper concludes that the new Act is perceived as being more effective at improving cash flow in the construction supply chain and is expected to encourage parties to resolve disputes by adjudication—but it will have to overcome the historical fact that integration of such proposed changes in construction may be a complex issue.
  • Effect of wind characteristics on gas dispersion in porous media

    Wilkinson, Stephen (International Society for Porous Media, 2017-05)
    Greenhouse gases have the key role in global warming. Soil is a source of greenhouse gases such as methane (CH4). Radon (Rn) which is a radioactive gas can emit form soil into the buildings and causes health concerns. Different soil properties can affect gas emissions inside/from soil including temperature, humidity, air pressure and vegetation (Oertel et al., 2016). It’s shown in many cases that pressure fluctuations caused by wind play an important role in transport of gas in soil and other porous media. An example is: landfill gas emissions (Poulsen et al., 2001). We applied a novel experimental equipment for measuring controlled wind turbulence on gas transport in porous media. This set-up was utilized to evaluate the effect of wind turbulence on gas transport in relation to the depth of porous medium. Experiments were carried out with binary diffusion of CO2 and air as tracer gases with average vertical wind speeds of 0.02 to 1.06 m s-1. 13 different wind conditions with different speed and fluctuations were applied. Five oxygen sensors were places inside sample at different depths to measure air transportation within porous media and total of 39 experiments were carried out. Gas transport in porous media is described by advection-dispersion equation. Gas transport is quantified as a dispersion coefficient. Oxygen breakthrough curves as a function of distance to the surface of the porous medium exposed to wind were derived numerically with an explicit forward time, central space finite-difference based model to assess gas transport. We showed that wind turbulence-induced dispersion of gas is an important transport mechanism that can increase gas transport with average of 45 times more than molecular diffusion under no-wind condition. Power spectrum density is calculated for all the 12 wind conditions to determine strength vibration of all the wind speeds.
  • Construction industry legal risk identification for SMEs

    Charlson, Jennifer; Oduoza, Chike (Sweet and Maxwell, 2016)
  • An analysis of passive earth pressure modification due to seepage flow effects

    Hu, Zheng; Yang, Zhongxuan; Wilkinson, Stephen Philip; Wilkinson, Stephen; Zhejiang University, 12377, Department of Civil Engineering, Zhejiang University, B700, Anzhong Building, 866 Yuhangtang Road, Hangzhou, Zhejiang, China, 310058, ;; Zhejiang University, Department of Civil Engineering, B712 Anzhong Building, Zijingang Campus, Zhejiang University, 866 Yuhangtang, Hangzhou, China, 310058, ;; University of Wolverhampton, 8695, Department of Civil Engineering, Wolverhampton, West Midlands, United Kingdom of Great Britain and Northern Ireland; (NRC Research Press, 2017-09-13)
    Using an assumed vertical retaining wall with a drainage system along the soil-structure interface, this paper analyses the effect of anisotropic seepage flow on the development of passive earth pressure. Extremely unfavourable seepage flow inside the backfill, perhaps due to heavy rainfall, will dramatically increase the active earth pressure while reducing the passive earth pressure; thus increasing the probability of instability of the retaining structure. In this paper, a trial and error analysis based on limit equilibrium is applied to identify the optimum failure surface. The flow field is computed using Fourier series expansion, and the effective reaction force along the curved failure surface is obtained by solving a modified Kötter equation considering the effect of seepage flow. This approach correlates well with other existing results. For small values of both the internal friction angle and the interface friction angle, the failure surface can be appropriately simplified with a planar approximation. A parametric study indicates that the degree of anisotropic seepage flow affects the resulting passive earth pressure. In addition, incremental increases in the effective friction angle and interface friction both lead to an increase in the passive earth pressure.
  • MICP and Advances towards Eco-Friendly and Economical Applications

    Rajasekar, Adharsh; Moy, Charles K.S.; Wilkinson, Stephen (IOP Publishing Ltd, 2017-07)
    Biomineralization is a natural process aided by living organisms. Due to its applicability in ground improvement and bioremediation, Microbially Induced Calcite Precipitation (MICP) is an interdisciplinary field of study combining engineering, chemistry and microbiology. Bioremediation has been applied widely for contamination containment or removal, in this case it will be containment. MICP can also be applied to improve the efficiency of insitu bioremediation. Urease is an enzyme which can facilitate increased calcite precipitation. However the production of urease by bacteria and thus the resulting carbonate precipitation are inhibited by environmental factors including calcium concentration, bacterial concentration, pH and temperature. Under good conditions MICP can be used for heavy metal and radionuclide immobilization. However technologies such as bioconsolidation and biocementation require improvement such as time and cost. This paper highlights the application of MICP in addition to suggested improvements to make it more eco-friendly and sustainable.

View more