Comparing the implementation of concrete recycling in the Australian and Japanese construction industries |
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| Authors: | Vivian WY Tam |
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| Institution: | 1. Faculty of Built Environment, University of New South Wales, Sydney, Australia;2. Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam;3. Department of Industrial Manufacturing and Systems Engineering, The University of Texas at Arlington, Arlington, TX, USA;4. Department of Finance and Management Science, Carson College of Business, Washington State University, Pullman, WA, USA;1. CERIS-ICIST, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal;2. School of Civil Engineering, University of Birmingham, B15 2TT, UK;3. Applying Concrete Knowledge, 1A Blackened Avenue, Birmingham, B17 8AP, UK;1. Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Aoba-468-1 Aramaki, Aoba-ku, Sendai, Miyagi, 980-0845, Japan;2. Center for Mineral Processing and Metallurgy, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan;1. Department of Infrastructure Engineering, The University of Melbourne, Grattan Street, Parkville 3010, VIC, Australia;2. Faculty of Architecture, Building and Planning, The University of Melbourne, Grattan Street, Parkville 3010, VIC, Australia;1. School of Architecture and Built Environment, The University of Adelaide, SA, 5001, Australia;2. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, PR China;3. School of Management, Guangzhou University, Guangzhou, Guangdong, 510006, PR China;1. Department of Structural Eng., College of Civil Eng., Tongji University, Shanghai 200092, PR China;2. Key Laboratory of Performance Evolution and Control for Engineering Structures, Tongji University, Ministry of Education, Shanghai 200092, PR China |
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| Abstract: | Environmental problems have been considered to be serious in the construction industry. Waste management pressures are pressing very hard with alarming industrial warming signals. Among the different types of construction and demolition wastes, concrete is about 81 percent of the volume of construction and demolition waste in Australia. To minimize the concrete waste generated from construction activities, recycling of concrete waste is one of the best methods to improve the environment. However, situations of concrete recycling in different countries vary considerably. Japan is a leading country in recycling concrete waste, with 100 percent recycling of the wastes that are used for new structural applications. This paper investigates the current concrete recycling situations in Australian and Japanese construction industries. A questionnaire survey and structured interviews were conducted. In comparing the current concrete recycling situations between Australia and Japan, it should be noted that major difficulties found from Australian and Japanese construction industries are on different phases of the transition to recycling of construction wastes. Therefore, it is suggested that the Australian construction industry should be: i) developing a unified policy in concrete recycling; ii) providing financial governmental support; iii) developing clear technical specifications or standards on the use of recycled aggregate for structural applications. |
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