Abstract
The recovery rate of construction materials is only 5% in China, which will lead to environmental and economic problems. Researchers from other countries have recognized the potential of building information modelling (BIM) in optimizing construction material recycling. However, previous research did not take the whole life cycle into consideration and was not practical enough. In this research, a questionnaire was conducted to find out how construction waste is disposed of in construction projects. Then, the existing research results were analyzed to find out how to apply BIM in the whole-life-cycle disposal of construction materials. According to the results of the questionnaire, landfill is the most common way to dispose of construction materials in China; besides this, almost no construction projects use BIM in material recycling. Hence, a BIM-based dynamic recycling model is proposed. Information management of materials, demolition planning, and BIM were all combined in this model for the purpose of optimizing the application of BIM, thus developing a waste material disposal system to achieve higher recovery rates and sustainability. More positive measures should be taken to deal with the problem of construction waste; if not, more environmental and economic problems will follow.
Highlights
Recycling 2021, 6, 16. https://doi.The construction industry accounts for a significant percentage of global material consumption [1] and is responsible for material waste [2], which has a major negative impact on the global ecological environment [3]
There is a great demand for waste recycling of building materials in China; the economic and environmental benefits gained from recycling are enormous [6], and recycling is seen as a solid waste management strategy [7]
We investigated the application of building information modelling (BIM) to construction material recy4.1
Summary
Recycling 2021, 6, 16. https://doi.The construction industry accounts for a significant percentage of global material consumption [1] and is responsible for material waste [2], which has a major negative impact on the global ecological environment [3]. According to Hebel et al [4], in 2025, China will produce more than half of the total solid waste generated by cities, mainly in the construction industry, all around the world. The waste that cannot be properly disposed of will cause serious damage to the Earth and environment. Under these circumstances, there is a great demand for waste recycling of building materials in China; the economic and environmental benefits gained from recycling are enormous [6], and recycling is seen as a solid waste management strategy [7]. Waste of building materials in China and situation of recycling.
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