Abstract
The environmental impacts of the construction stage should be considered since a large amount of building materials are used to construct a building at this stage. Studies on the improvement of construction techniques or the application of newly developed construction methods for reducing the environmental impacts are relatively scant compared to other topics of studies. This study aimed to assess and compare the environmental impacts of the ordinary solid slab, the flat plate slab and the voided slab system during the construction phase. A process-based quantitative model was adopted to evaluate the environmental impacts and the comparative results were analysed to demonstrate the significant characteristics of the environmental impacts of the construction of slab in a building. The assessment results show that the environmental impacts from the ordinary solid slab are the highest and the voided slab system is the lowest among three slab systems. As the slab system of the studied building was replaced, it was shown that the environmental impact indicators showed the decreased tendency. Based on the results of environmental impact reduction from the ordinary solid slab, the flat plate slab and the voided slab system, the voided slab system would have the least environmental impact in all indicators.
Highlights
Recent years have seen growing interest in the reduction in environmental burden, in order to achieve sustainable development throughout all industries [1,2,3,4]
The result shows that the environmental impacts during the construction phase from Ordinary Solid Slab (OSS) are the highest for all environmental impact indicators, while the total environmental impacts of the voided slab system (VDS) are the lowest environmental impacts among the three slab systems for all environmental impact indicators
This study shows the similar contribution of environmental impact from all of the indicators for the OSS, the Flat Plate Slab (FPS), and the VDS
Summary
Recent years have seen growing interest in the reduction in environmental burden, in order to achieve sustainable development throughout all industries [1,2,3,4]. Gorobets [2] suggested solutions to achieve sustainable development, such as technological aspects as well as political approaches. The construction industry is no longer an exception to such alleviation of environmental problems. It is reported that annually the construction industry consumes more than 40% of the total global energy demand. This industry produces approximately 33% of the total carbon dioxide emissions per annum [5,6,7,8]
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