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China's Green Building (GB) evaluation standard has always emphasized the use of Recycled Building Materials (RBM). However, the quality of RBM is a major obstacle to its promotion. Unlike previous studies, this study innovatively developed a four-way evolutionary game model including Local Government (LG), RBM suppliers, developers and homebuyers, and examined their strategy changes from the production of building materials to the purchase and use of homes. This paper uses MATLAB 2021b software to simulate and verify the model and uses the real market data of Wuhan city and Sanya city to analyze the influence of some key factors among 23 factors such as the price of purchasing natural building materials P 2 and the basic utility obtained by purchasing a house B. The results showed the following: (1) Among the four evolutionary stable strategies in this system, the optimal strategy combination lies when LG does not plan, manufacturers perform upcycling and when developers and homebuyers choose RBM. (2) High fines can force suppliers to perform upcycling, and developers will build houses according to homebuyers' preferences. If homebuyers are in immediate demand for homes, they will more willing to purchase homes built with RBM. (3) Considering the financial pressure of LG, it should promote the system in parallel with rewards and penalties in the early stage of development, while after a period of time, LG can stop making any subsidies and only retain the regulation of suppliers. This study helps to better understand the behaviors of various stakeholders in the full life cycle of RBM, and provides some reference for the development of RBM and GB in China. [ABSTRACT FROM AUTHOR]

[Display omitted] • Review of bio PCMs considering recycling, resources conservation and green building. • Discussion on characteristics and drawbaks of bPCMs and pertinent solutions. • Insight into conventional and non-conventional sources of bPCMs. • Evaluation of data on life cycle analysis and incorporation technologies of bPCMs. • Future perspectives to promote the application of bPCMs in the construction sector. Implementation of thermal energy storage (TES) systems in buildings heavily relies on orthodox phase change materials (PCMs) which are derived from precious and non-renewable resources. Meanwhile, to promote recycling, pure green buildings campaign and natural resources conservation, biobased PCMs (bPCMs) are preferable over orthodox PCMs. The major characteristics of bPCMs that make them a preferred choice for TES applications include but are not limited to renewability, non-toxicity, minimal supercooling, high latent heat, thermal stability over a wider temperature range, reasonable melting/freezing temperatures, self-nucleating response, and limited flammability. Despite these advantages, there are different challenges attached to bPCMs that hinder their application on large scale i.e., biodegradability, odor generation, leakage, and demand-supply issues. However, most of these limitations are analogous to that of conventional PCMs, and promising research data is available on their solution. Further, the conventional source of bPCMs includes biobased oils and fats, most of which are of edible nature; thus, their widespread use could conflict with food security and undermine the major advantages of bPCMs. This issue can be resolved by minimizing the reliance of bPCM on conventional sources and looking for viable alternatives i.e., waste edible oils, animal fats, and genetically modified oils. Albeit strong evidence can be found in the literature about the viability of these alternatives, they are open to research. Further, life cycle assessment of different bPCMs also advocates their environment-friendliness and cost-effectiveness over conventional PCMs. Moreover, substantial technological advancements have been made referring to the incorporation of bPCMs in building envelops and TES applications; however, more studies are required on recyclable encapsulation and support materials. This paper provides a state-of-the-art review of research status and useful perspective in the paradigms of recycling, green building applications, and natural resources conservation corresponding to the bPCMs. [ABSTRACT FROM AUTHOR]