ORCID Profile
0000-0002-8429-2551
Current Organisation
RMIT University
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Building | Building Construction Management and Project Planning |
Residential Construction Processes | Construction Materials Performance and Processes not elsewhere classified
Publisher: Nova Science Publishers
Date: 2023
DOI: 10.52305/PZRQ5282
Publisher: Springer International Publishing
Date: 2018
Publisher: Inderscience Publishers
Date: 2015
Publisher: Elsevier BV
Date: 04-2006
Publisher: MDPI AG
Date: 11-01-2021
DOI: 10.3390/SU13020620
Abstract: With the COVID-19 outbreak across the world, policymakers and authorities have realised that they cannot solve the emerging issues using conventional policies and practices. COVID-19 has severely affected many industries, including construction and demolition (C& D) waste management and C& D waste resource recovery sector. Extended Producer Responsibility (EPR) and schemes alike are policy instruments that prevent waste generation and promote a circular economy in the construction industry. These schemes are long adopted in various countries for different waste streams. EPR policy development and implementation, particularly for C& D waste, is still at an early stage in Australia. This study aims to review the Australian regulatory environment and practice to identify barriers and enablers towards successful policy development and implementation of C& D waste-related EPR. This study is based on secondary data that are publicly available. The document analysis was conducted to identify the level of regulatory and other stakeholders support in Australia. Following three rounds of examination of sources and applying multiple selection criteria, 59 different sources were reviewed in total. The results showed that there is widespread support among different stakeholders to develop EPR and expand the existing regulation to other materials. The barriers were cost and time implications for EPR policy establishment and enforcement, ersity of stakeholders involved, construction product lifecycle, responsibility of manufacturers, complexity in implantation of EPR regulations, modification inbuilt facilities and health and safety issues. Recommendations are made to alleviate these challenges. The outcome of this study could serve as a guideline for designing effective EPR policies.
Publisher: Golden Light Publishing
Date: 30-09-2019
Publisher: American Society of Civil Engineers (ASCE)
Date: 06-2009
Publisher: Elsevier BV
Date: 2012
Publisher: Elsevier BV
Date: 10-2013
Publisher: MDPI AG
Date: 02-06-2020
DOI: 10.3390/SU12114496
Abstract: With increased construction activities in capital cities of Australia, the sustainable management of construction and demolition (C& D) has become an important item in the federal and state government agendas. According to the universally accepted concept of waste hierarchy waste disposal is the worst preferred waste management option due to environmental issues. Currently, in most Australian jurisdictions, a landfill levy is applied to discourage waste disposal and to further encourage waste recovery. However, there is an ongoing debate as to whether the levy regime could achieve the desired outcome. Therefore, this study, funded by the Australian Sustainable Built Environment National Research Centre, explored the effectiveness of the current landfill levy across Australian jurisdictions. The paper presents the findings of this study that were obtained from a questionnaire survey aiming to capture the main C& D waste management stakeholders on landfill taxing imposition in Australia. The study collected 132 responses from professionals in the construction industry and other industries dealing with C& D waste management and resource recovery. The results demonstrated that those who believed in market incentive approaches outweigh people that were in favour of pecuniary impost approach. Among those who favoured pecuniary imposts, almost 90% of participants agreed with the effectiveness of landfill levies in any waste management system. Other results provided a useful insight into the actual implications of the current levy scheme. It is expected that the findings in this study contribute to developing sound policies that provide a level field for all key stakeholders and to ensure that resource recovery is further encouraged.
Publisher: Emerald
Date: 22-08-2008
DOI: 10.1108/13664380810898122
Abstract: The purpose of this paper is to examine the use of bid information, including both price and non‐price factors in predicting the bidder's performance. The practice of the industry was first reviewed. Data on bid evaluation and performance records of the successful bids were then obtained from the Hong Kong Housing Department, the largest housing provider in Hong Kong. This was followed by the development of a radial basis function (RBF) neural network based performance prediction model. It is found that public clients are more conscientious and include non‐price factors in their bid evaluation equations. With the input variables used the information is available at the time of the bid and the output variable is the project performance score recorded during work in progress achieved by the successful bidder. It was found that past project performance score is the most sensitive input variable in predicting future performance. The paper shows the inadequacy of using price alone for bid award criterion. The need for a systemic performance evaluation is also highlighted, as this information is highly instrumental for subsequent bid evaluations. The caveat for this study is that the prediction model was developed based on data obtained from one single source. The value of the paper is in the use of an RBF neural network as the prediction tool because it can model non‐linear function. This capability avoids tedious “trial and error” in deciding the number of hidden layers to be used in the network model.
Publisher: Elsevier BV
Date: 11-2019
Publisher: MDPI AG
Date: 26-08-2022
Abstract: The purpose of this paper is to investigate the nature of public opposition (PO) to the siting of construction and demolition (C& D) waste management facilities in Australia. A qualitative case study of PO to the development proposal for the Gunnedah waste facility, in the state of New South Wales (NSW), was conducted. The waste facility is promised to process up to 250 kilotons of waste materials, much of which is C& D waste intended for use in road constructions after processing. Using a content analysis approach, the study analysed 86 public submissions that were lodged within the allocated development application exhibition period to systematically analyse the arguments used by the submitters about the establishment of the facility. The case study revealed five broad perceived risk classes to the siting of the Gunnedah waste facility, namely location, environmental, human health, financial and process risks. It was also shown that while not-in-my-back-yard (NIMBY) attitudes may have played a part in the PO to the sitting at the facility, the PO was heavily affected by the poor public participation process. The study outlines key strategies for an effective public participation process that may assist with the management of PO to the siting of C& D waste management facilities in Australia. The study contributes to the theory and practice of effective C& D waste management, enhancing the social acceptance of such facilities toward a more circular economy in the built environment.
Publisher: Elsevier BV
Date: 07-2010
Publisher: Springer International Publishing
Date: 2014
Publisher: Informa UK Limited
Date: 24-11-2019
Publisher: Springer Singapore
Date: 2020
Publisher: Springer Singapore
Date: 23-12-2021
Publisher: American Society of Civil Engineers
Date: 04-2009
DOI: 10.1061/41020(339)31
Publisher: Informa UK Limited
Date: 07-12-2018
Publisher: American Society of Civil Engineers (ASCE)
Date: 11-2013
Publisher: Springer Science and Business Media LLC
Date: 29-10-2022
DOI: 10.1007/S42824-022-00069-Z
Abstract: The sustainable management of construction and demolition (C& D) necessitates efficient waste minimisation policies. Sustainable procurement of recycled waste products (RWPs) is an encouragement-based policy approach that can serve this purpose. This policy aids stakeholders in enhancing the circular economy (CE) in the built environment (BE) sector. However, this procurement method is yet to be successfully adapted globally or in Australia. Hence, this study was conducted to shed light on the use of sustainable procurement in the Australian BE sector. Based on a mixed-methods methodology, 49 relevant academic, industry and government publications were analysed during the review process. The findings reveal that the two most significant obstacles are the lack of supportive organisational culture and uncertainty about RWP quality. In addition, implementing clear and supporting regulations and maintaining transparency and good governance are identified as the two most important enablers. A model was proposed to facilitate the adoption of sustainable procurement, based on the research findings. The study includes a number of suggestions to encourage the acquisition of C& D RWPs for construction projects. This review is anticipated to contribute to three areas: sustainable procurement theory, policy development, and BE sector practice.
Publisher: Routledge
Date: 09-01-2015
Publisher: American Society of Civil Engineers (ASCE)
Date: 04-2005
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2015
Publisher: MDPI AG
Date: 07-07-2020
DOI: 10.20944/PREPRINTS202007.0118.V1
Abstract: Increased construction activities in Australia have led to the generation of a massive volume of construction and demolition (C& D) waste annually. Management of this volume of waste requires an effective waste framework. The literature reported that the current Australian waste framework does not meet expectations and needs immediate improvements. This study was therefore conducted to seek the key C& D stakeholders' opinion about various issues identified in this waste stream. The specific objectives of this study are identification of the main barriers to effective C& D waste management, the impact of current regulations and opportunities to enhance the current C& D waste management system. A survey was conducted in 2019 to capture the stakeholders' perception. 132 participants from various industries and government agencies based in various Australian jurisdictions took part in the survey. The key results showed that the main barriers towards an effective management system are "overregulation, tough acceptance criteria, and increased testing requirements", "lack of local market" and "culture, poor education and low acceptance". Furthermore, a low number of participants indicated that the current legislation encourages waste recovery activities. The main areas of improvements included "providing a guideline that determines the accepted level of contamination for reusing C& D waste& , "preparation of guidelines on requirements of using recycled C& D materials in different industries" and "setting target for reduction, reusing, and recycling C& D waste". The results can inform policy development and be used as evidence for a broader discussion to solve lasting issues in C& D waste management.
Publisher: Vilnius Gediminas Technical University
Date: 17-09-2012
DOI: 10.3846/16111699.2011.620157
Abstract: The operation of organizations is very much influenced by their culture. Organizational culture (OC) has been defined as a pattern of basic assumptions that are manifested by the behavior of an organization. Positive OC is considered to be catalytic to performance enhancement. As construction aspires to be an efficient industry, this study aims to contribute in this regard by examining the relationship between organizational culture and the performance of construction organizations. Artifacts corresponding to OC identifiers and Performance indicators are short-listed from a literature review. These artifacts are arranged into constructs. The eight OC constructs are: Goal Clarity, Coordination and Integration, Conflict Resolution, Employee Participation, Innovation Orientation, Performance Emphasis, Reward Orientation and Team orientation. The performance indicator constructs are Financial, Internal Business Process, Custom and Innovation & Learning. The artifacts were elaborated and operationalized for data collection. The constructs, as well as the OC-Performance relationship framework, were then analyzed and tested using Structural Equation Modeling. Innovation was found to be the most critical OC as far as performance of construction organizations is concerned. In today's knowledge based society, innovative organizations have proved to be the performers. This timely finding highlights the need for a culture that fosters creativity and supports innovation.
Publisher: American Society of Civil Engineers (ASCE)
Date: 07-2008
Publisher: Emerald
Date: 30-03-2020
DOI: 10.1108/BEPAM-02-2019-0015
Abstract: In an attempt to create national harmonisation of legislation, a set of model Work Health and Safety (WHS) Regulations were developed in Australia. These regulations require principal contractors to undertake specific WHS planning and coordination activities if the construction works to be completed cost AU $250,000 or more. However, there are some doubts about the usefulness of this monetary threshold. This study aimed to investigate how effective this threshold can be in Australia. To evaluate the performance and operation of this threshold in the Australian construction industry, this study modelled the costs of construction for four construction project scenarios – small classroom, two-storey home renovation with adjacent pool, small commercial warehouse and single-storey house (volume home builder) – under various conditions based on historical data (2011–2017) and in eight Australian jurisdictions. Among the six study factors (i.e. the types for construction, geographical location, design specification, delivery method, contracting approach and inflation), the research found considerable variation in the operation and performance of the monetary threshold. The research highlights some potential challenges associated with the use of a monetary threshold in the regulation of WHS planning in construction projects. Thus, the results are expected to contribute to addressing these challenges, leading to the development of an appropriate balance to achieve efficient and effective WHS regulation in Australia.
Publisher: Inderscience Publishers
Date: 2015
Publisher: American Society of Civil Engineers (ASCE)
Date: 07-2017
Publisher: Springer Singapore
Date: 23-12-2021
Publisher: American Society of Civil Engineers (ASCE)
Date: 11-2016
Publisher: Elsevier BV
Date: 02-2019
Publisher: Elsevier BV
Date: 05-2015
Publisher: IOP Publishing
Date: 24-02-2019
Publisher: Elsevier BV
Date: 05-2015
Publisher: Emerald
Date: 26-02-2021
DOI: 10.1108/ECAM-10-2020-0802
Abstract: This paper critically reviews economic impact assessment methods adopted in construction-related projects, to develop and present a novel bottom-up approach suitable to estimate regional economic impacts of building maintenance projects. A thorough literature review of economic impact assessment in construction projects is carried out to identify the most relevant approach to estimate wider economic impacts of building maintenance projects. Based on these findings, a model based on the bottom-up approach to estimate wider economic impacts is developed. The applicability and face validity of the developed model is demonstrated through a case of cladding replacement program in Australia. The literature review revealed that bottom-up models are better suited for estimating regional economic impacts of maintenance projects, given the challenges of obtaining micro-level economic data in the maintenance sector. In relation to the total economic impacts (direct and indirect), the results show that for every $1 of government spending on similar projects the Gross State Product would increase by $1.34. In terms of employment impact, over 70% of the direct economic value addition is driven by the increase in labour, where close to 3 FTE jobs will be required for each $1 million of spending on cladding replacement projects. This paper presents a model to estimate the wider economic impacts of building maintenance projects, which is typically overlooked in the construction management field. The proposed model is developed to incorporate the variability of different building maintenance projects so that the economic impact resulting from these projects could be estimated more accurately. This model can be used by local government decision-makers to justify and prioritise maintenance projects in a similar manner to new construction projects.
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2005
Publisher: American Society of Civil Engineers (ASCE)
Date: 06-2007
Publisher: Elsevier BV
Date: 02-2008
Publisher: Golden Light Publishing
Date: 30-09-2020
Publisher: American Society of Civil Engineers (ASCE)
Date: 02-2014
Publisher: Elsevier BV
Date: 2011
Publisher: Inderscience Publishers
Date: 2016
Publisher: University of Technology, Sydney (UTS)
Date: 14-04-2014
DOI: 10.5130/AJCEB-CS.V2I2.3893
Abstract: This paper presents a novel bracing system designed for earthquake risk mitigation for steel structures. It involves a rotary system which a Chebyshev linkage connected to the ground and the building frame. Upon earthquake excitation, movement of structure floor slabs causes a rotational motion in the disc. Displacement-based d ers are installed between the rotary system and the ground which d the structural vibrations. The system lifies the travel of the d ers and efficiency is enhanced. In addition, the cross-brace members are always in tension, permitting the use of very slender sections. The paper first reviews the governing equations of the system, followed by a physical model demonstration. A 3-degree-of-system model with the proposed rotary system was subjected to simulated ground shaking. Acceleration on top floor was measured. Results demonstrated that proposed system effectively supresses the vibrational characteristics of the structure, and represents a viable and inexpensive solution to mitigate seismic risks.Keywords: Earthquake engineering, passive energy dissipation
Publisher: Elsevier BV
Date: 08-2013
Publisher: American Society of Civil Engineers (ASCE)
Date: 10-2012
Publisher: IGI Global
Date: 07-05-2021
DOI: 10.4018/978-1-7998-6600-8.CH002
Abstract: The effective undertaking of BIM as a systemic innovation requires tighter collaboration among multiple stakeholders and supply chain partners and entails a culture change. However, obtaining a high degree of collaboration is difficult given the nature of construction projects with a erse supply chain and stakeholders involved in a project. Therefore, this study focuses on the current improvements and approaches in facilitating the BIM-enabled collaboration as a transformative approach in the built environment.
Publisher: Thomas Telford Ltd.
Date: 02-2020
Abstract: While off-site construction presents opportunities for increased productivity, safety and decreased costs, little is understood as to why some contractors are not ready repared to change their practice and adopt off-site construction more extensively in projects. This study aimed to examine the effect of organisational readiness (OR) on the organisational change (OC) for the more extensive use of off-site construction. Furthermore, how counter-knowledge (CK) may affect such a relationship was investigated. A questionnaire survey was conducted to investigate the relationship between OC, OR and CK. The appropriateness of the questions used in the questionnaire survey was validated through interviews with industry experts. The results indicate that when OR is embodied within contractor firms, OC for more extensive use of off-site construction is more likely to occur. It was found that clear communication about OC should occur in order to gain support from staff and minimise false and misleading information within the organisation. It was identified that CK has a moderating effect on OR associated with OC. Specifically, organisational valence is degraded by misinformation about resourcing, performance management and communication concerning greater adoption of off-site construction. Comparatively, self-efficacy, personal valence and senior leadership support can lead to OC, despite the existence of CK within the organisation.
Publisher: Iris Publishers LLC
Date: 12-11-2019
Publisher: Informa UK Limited
Date: 17-07-2014
Publisher: Informa UK Limited
Date: 14-12-2019
Publisher: Elsevier BV
Date: 07-2003
Publisher: Elsevier BV
Date: 04-2004
Publisher: Elsevier BV
Date: 02-2021
Publisher: Inderscience Publishers
Date: 2020
Publisher: Springer Singapore
Date: 19-12-2018
Publisher: Elsevier BV
Date: 08-2004
Start Date: 2014
End Date: 2014
Funder: RMIT University
View Funded ActivityStart Date: 2009
End Date: 2010
Funder: Research Grants Council, University Grants Committee, Hong Kong
View Funded ActivityStart Date: 2010
End Date: 2011
Funder: University of Western Sydney
View Funded ActivityStart Date: 2008
End Date: 2009
Funder: City University of Hong Kong
View Funded ActivityStart Date: 2008
End Date: 2009
Funder: Research Grants Council, University Grants Committee, Hong Kong
View Funded ActivityStart Date: 2017
End Date: 2018
Funder: Australian Housing and Urban Research Institute
View Funded ActivityStart Date: 2019
End Date: 2020
Funder: China University of Mining and Technology
View Funded ActivityStart Date: 2018
End Date: 2020
Funder: Sustainable Built Environment National Research Centre
View Funded ActivityStart Date: 2019
End Date: 2019
Funder: Royal Melbourne Institute of Technology
View Funded ActivityStart Date: 2014
End Date: 2018
Funder: Australian Research Council
View Funded ActivityStart Date: 07-2014
End Date: 12-2022
Amount: $345,385.00
Funder: Australian Research Council
View Funded Activity