PurposeDespite the positive impacts of the construction sector on enhancing economic growth and ensuring societal well-being, its negative impacts on the environment from unsustainable resource consumption levels, emission of greenhouse gases (GHGs) and waste generation is monumental. Circular economy (CE) concept is identified globally as an avenue to address problems regarding adverse impacts of construction on the environment. This paper presents the principles of CE as an avenue for enhancing environmental sustainability during the pre-construction stage within Sri Lankan construction projects.Design/methodology/approachThis research was approached through a qualitative research method. Data were collected through semi-structured interviews with subject matter experts. The number of experts were limited due to lack of experts with knowledge on the subject area in Sri Lanka. Data were analysed using content analysis.FindingsFindings revealed a range of activities under each R principle of CE, that is, reduce, reuse, recycle, redesign, reclassification and renewability that could be implemented during the pre-construction stage, thereby providing a guide for construction professionals in implementing CE at the pre-construction stage. The need to expand knowledge on CE concepts within the Sri Lankan construction sector was recognized.Originality/valueThis study provides a qualitative in-depth perspective on how 6R principles of CE could be integrated to a construction project during the pre-construction stage. By adopting the proposed activities under CE principles, construction professionals can enhance the environmental sustainability of construction projects.

Purpose The purpose of this paper is to explore ways to enhance water use efficiency at construction sites according to project stakeholders’ perceptions. Design/methodology/approach A questionnaire survey was developed based on drivers, barriers and potential water use efficiency measures identified through a literature review. It was administered among professionals working in the construction industry who have more than ten years of work experience. Findings The study highlighted cost of water and sources of water as main drivers that promote water use efficiency on sites. Lack of priority for water management among host of other managerial functions was identified as the main barrier. In order to conserve water, respondents favoured “soft” measures such as changes in workers’ behaviour and managerial policies and planning for water savings, as opposed to “hard” measures which were primarily technology based. Research limitations/implications The major implications of the study are related to how behaviour of the workers could be changed to accommodate water use efficiency in their everyday activities. Water saving measures such as leak detection, auditing and sub-metering were favoured by respondents referring to policies and planning, as well as implementing a water action plan when a project begins. Originality/value This study makes a contribution to the body of knowledge on the subject of water sustainability at construction projects. This is an understudied area. In addition, the findings will enhance the understanding of construction companies on water use efficiency and should serve as a platform to develop improved and appropriate techniques.

Purpose Water conservationists have been promoting a hierarchy of measures to preserve water resources in the face of decreasing freshwater availability in the world. However, applicability of water hierarchy to the construction industry is yet to be investigated. To fill this knowledge gap, the purpose of this paper is to investigate water usage, water use efficiency, and conservation measures relevant to the construction operations. Design/methodology/approach A triangulation-based mixed-methods approach was adopted for the collection and analysis of data. First, four case studies were carried out to explore the current practices and the possibilities of applying the water hierarchy to the construction operations. This was followed by a questionnaire survey, administered among construction professionals to obtain their views and to verify the findings of case studies. Findings Strategies such as reuse and recycling were found to be less applicable and least preferred by the construction professionals compared to reduce, replace, and eliminate. Based on the research findings, three enabling measures, namely, regulation, responsibility, and reward, were found to enhance the effectiveness of these conservation strategies. Practical implications Knowledge on preferences of different water conservation measures among the construction professionals and their effectiveness on construction site could help the construction companies to device strategies to mitigate water wastage and enhance water use efficiency. It could also help policy-makers to develop guidelines that would have higher probability of acceptance among construction stakeholders. Originality/value The study proposes an extended water hierarchy (3R.6R) by integrating three enabling measures discussed above for the construction project sites.

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Purpose The purpose of this study is to develop a customised model to measure the performance of housekeeping (HK) services in Sri Lankan health-care facilities. Design/methodology/approach An exploratory sequential mixed approach was adopted in the study to collect and analyse data. A case study strategy was adopted in the initial phase to explore the current HK practices, and to determine the applicable key performance indicators (KPIs) found through literature. Semi-structured interviews were used as the data collection method in the selected case studies. A questionnaire survey was conducted in the next phase to verify the validity of case study findings. Quantitative data were analysed using descriptive statistics. One sample t-test was used to identify significant KPIs and to formulate the customised performance measurement (PM) model. Findings The study identified and ranked 46 KPIs, which can be used to measure the performance of HK divisions of health-care facilities, in balanced scorecard perspectives. The findings also revealed that the KPIs determined using the model have a significant impact on implementing effective health-care HK services and could be used to measure both real and subjective cleanliness. Practical implications The developed model can be used for numerous PM requirements in health-care setups in both developing and developed countries. The KPIs determined using this model can be presented in quality audits and government inspections as proof of effective HK management. The HK managers of the health-care sector can effectively monitor the performance of their divisions using the proposed PM model and this model can be customised to match the other facilities management service divisions. Originality/value Many studies focus on overall health-care PM. This study expands the knowledge on HK PM in the health-care sector by presenting a collection of performance indicators centred on HK function.