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      DRIVING FACTORS FOR CONSTRUCTION WASTE MINIMIZATION: EMPIRICAL STUDIES IN HONG KONG AND SHENZHEN

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          ABSTRACT

          Effective waste management is an important aspect of green building development. However, a number of studies find that construction waste minimization actions are not satisfactorily performed in practice. Thus, it is of significance to identify the driving factors that influence construction practitioners' waste minimization behavior. This paper aims to explore the driving factors by comparing the affecting factors and construction waste minimization behavior between Hong Kong and Shenzhen. Firstly, through a comprehensive literature review, potential affecting factors were categorized into five groups: background information variables, construction waste minimization intentions, economic viability, governmental supervision, and project constraints. Based on the identified factors, a questionnaire was initially designed and then refined through a focus group meeting with three experienced experts. A total of 166 questionnaires were collected and non-parametric tests (Mann-Whitney U Test and Kruskal-Wallis Test) were conducted to investigate the underlying driving factors. Results revealed that background information variables play insignificant roles in construction waste minimization. Compared with other affecting factors (i.e., waste minimization intentions, governmental supervision, project constraints), economic viability is the most important driving factor that determines construction waste minimization. Results suggested that local governments should make policies that increase practitioners' profit, rather than just increasing their intentions or regulating waste management behavior.

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          Causes and effects of delays in Malaysian construction industry

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            Investigating the determinants of contractor’s construction and demolition waste management behavior in Mainland China

            The abundant generation of construction and demolition (C&D) waste presents a significant challenge to the sustainable development of the construction industry in Mainland China. As the implementer of construction activities, the contractor's C&D waste management performance plays an important role in C&D waste minimization. This paper aims to investigate the determinants of the contractor's C&D waste management behavior in Mainland China. The Theory of Planned Behavior (TPB) was selected as the basis of the theoretical model. In addition, three contextual constructs (i.e., economic viability, governmental supervision, and project constraints) were introduced, formulating the initial model. Based on the initial model, eight constructs were identified and seven hypotheses were proposed. A questionnaire survey was conducted to collect data and a Structural Equation Modeling (SEM) analysis was employed to test the proposed hypotheses. Results showed that the C&D waste management intention is not a significant determinant of contractor's C&D waste management behavior. The most important determinant is economic viability, followed by governmental supervision as the second most important determinant. Nevertheless, the construct of project constraints is an insignificant determinant for contractor's adoption of C&D waste management behavior. The research findings imply that, in Mainland China, the government, at this stage, plays an important role in guiding and promoting the contractor to exhibit better C&D waste management behavior.
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              A framework for understanding waste management studies in construction

              During the past decades, construction and demolition (C&D) waste issues have received increasing attention from both practitioners and researchers around the world. A plethora of research relating to C&D waste management (WM) has been published in scholarly journals. However, a comprehensive understanding of the C&D WM research is somehow absent in spite of its proliferation. The aim of this paper is to develop a framework that helps readers understand the C&D WM research as archived in selected journals. Papers under the topic of C&D WM are retrieved based on a set of rigorous procedures. The information of these papers is then analyzed with the assistance of the Qualitative Social Research (QSR) software package NVivo. A framework for understanding C&D WM research is created based on the analytic results. By following the framework, a bibliometric analysis of research in C&D WM is presented, followed by an in-depth literature analysis. It is found that C&D generation, reduction, and recycling are the three major topics in the discipline of C&D WM. Future research is recommended to (a) investigate C&D waste issues in wider scopes including design, maintenance and demolition, (b) develop a unified measurement for waste generation so that WM performance can be compared across various economies, and (c) enhance effectiveness of WM approaches (e.g. waste charging scheme) based on new WM concepts (e.g. Extended Producer Responsibility). In addition to the above research findings, the approach for producing the research framework can be useful references for other studies which attempt to understand the research of a given discipline.
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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Fall 2019
                : 14
                : 4
                : 155-167
                Author notes

                1. Assistant Professor, Sino-Australia Joint Research Center in BIM and Smart Construction, Shenzhen University, Shenzhen, China.

                Email: wuzezhou@ 123456szu.edu.cn ( *Corresponding author)

                2. Associate Professor, Department of Building and Real Estate, The Hong Kong Polytechnic University, Kowloon, Hong Kong. Email: bsannyu@ 123456polyu.edu.hk

                3. Associate Professor, School of Management Science and Engineering, Central University of Finance and Economics, Beijing, China. Email: hao.wang@ 123456cufe.edu.cn

                4. Assistant Professor, School of Economics and Management, Beihang University, Beijing, China. Email: weiyg@ 123456buaa.edu.cn

                5. Assistant Professor, School of Economics and Management, Chongqing Jiaotong University, Chongqing, China. Email: huoxiaosen1025@ 123456foxmail.com

                Article
                jgb.14.4.155
                10.3992/1943-4618.14.4.155
                baf6949d-2071-4670-946d-a2505cdafe62
                History
                Page count
                Pages: 13
                Categories
                RESEARCH ARTICLES

                Urban design & Planning,Civil engineering,Environmental management, Policy & Planning,Architecture,Environmental engineering
                driving factor,construction waste minimization,economic viability,Shenzhen,Hong Kong

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