Abstract
This paper aims to critically review the current body of literature relating to the calculation methods of construction material stock. To this end, this study adopts a systematic literature review technique in order to identify the relevant studies. The findings revealed that the bottom-up and top-down methodologies were commonly employed by the reviewed studies. Based on the findings, it is recommended that the bottom-up approach should be utilized when dealing with small-scale areas or where more accurate results are required. The top-down method should be used wherein the research area is large, and the results could be estimated based upon assumptions and statistical data. Similarly, the demand-driven methodology should be used to find the material stock accumulation due to socio-economic factors. The study also found that the material stock results can be used as data for other research, such as waste management and embodied energy. Further, this paper proposes a conceptual framework to ease the process of calculating construction material stocks in different projects. The outcomes of this research shall be beneficial for future studies that explore the literature connected to the construction material stock and recommend methods and techniques that should be used to quantify the material stock.
Highlights
The increasing trend of global energy consumption has caused several serious environmental issues including climate change, global warming, and the depletion of natural resources [1]
This review identifies three calculation methods utilized by the studies reviewed for estimation of construction material stock, namely bottom-up, top-down, and demanddriven
The results showed that the total material stock of non-residential buildings was approximately 65 million m3
Summary
The increasing trend of global energy consumption has caused several serious environmental issues including climate change, global warming, and the depletion of natural resources [1] In this regard, the construction industry plays a significant role in consuming more than 40% of the global energy and emitting nearly 40% of greenhouse gases (GHGs) worldwide [1]. Construction materials are one of the largest flows incoming into urban contexts after water [1], causing many environmental issues during the entire processes of mining, manufacturing, transportation, and end of life [2]. The expel of these materials, mostly non-renewable materials into the urban areas, has increased sharply since the mid-20th century due to the sprawl of cities. Considering the impending increase in the world’s population, the construction industry is expected to contribute even more to exacerbating the environment due to booming demands for services
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