Sharma Raju, Jang Jeong-Gook, Hu Jong-Wan
Division of Architecture and Urban Design, Urban Sciences Institute, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea.
Department of Civil and Environmental Engineering, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea.
Materials (Basel). 2022 Jan 3;15(1):335. doi: 10.3390/ma15010335.
The use of phase-change materials (PCM) in concrete has revealed promising results in terms of clean energy storage. However, the negative impact of the interaction between PCM and concrete on the mechanical and durability properties limits field applications, leading to a shift of the research to incorporate PCM into concrete using different techniques to overcome these issues. The storage of clean energy via PCM significantly supports the UN SDG 7 target of affordable and clean energy. Therefore, the present study focuses on three aspects: PCM type, the effect of PCM on concrete properties, and connecting the outcome of PCM concrete composite to the United Nations sustainable development goals (UN SDGs). The compensation of reduction in strength of PCM-contained concrete is possible up to some extent with the use of nanomaterials and supplementary cementitious materials. As PCM-incorporated concrete is categorized a type of building material, the large-scale use of this material will affect the different stages associated with building lifetimes. Therefore, in the present study, the possible amendments of the different associated stages of building lifetimes after the use of PCM-incorporated concrete are discussed and mapped in consideration of the UN SDGs 7, 11, and 12. The current challenges in the widespread use of PCM are lower thermal conductivity, the trade-off between concrete strength and PCM, and absence of the link between the outcome of PCM-concrete composite and UN SDGs. The global prospects of PCM-incorporated concrete as part of the effort to attain the UN SDGs as studied here will motivate architects, designers, practicing engineers, and researchers to accelerate their efforts to promote the consideration of PCM-containing concrete ultimately to attain net zero carbon emissions from building infrastructure for a sustainable future.
在混凝土中使用相变材料（PCM）已在清洁能源存储方面显示出令人鼓舞的成果。然而，PCM与混凝土之间的相互作用对力学性能和耐久性产生的负面影响限制了其在实际工程中的应用，这促使研究方向转向采用不同技术将PCM掺入混凝土中以克服这些问题。通过PCM存储清洁能源极大地支持了联合国可持续发展目标7中关于可负担和清洁能源的目标。因此，本研究聚焦于三个方面：PCM类型、PCM对混凝土性能的影响，以及将PCM混凝土复合材料的成果与联合国可持续发展目标（UN SDGs）相联系。使用纳米材料和辅助胶凝材料在一定程度上可以补偿含PCM混凝土强度的降低。由于掺入PCM的混凝土属于一种建筑材料，这种材料的大规模使用将影响建筑生命周期的不同阶段。因此，在本研究中，考虑到联合国可持续发展目标7、11和12，讨论并绘制了使用掺入PCM的混凝土后建筑生命周期不同相关阶段可能的修正情况。目前PCM广泛应用面临的挑战包括较低的热导率、混凝土强度与PCM之间的权衡，以及PCM混凝土复合材料的成果与联合国可持续发展目标之间缺乏联系。本文所研究的掺入PCM的混凝土在实现联合国可持续发展目标方面的全球前景，将激励建筑师、设计师、从业工程师和研究人员加快努力，推动对含PCM混凝土的考虑，最终实现建筑基础设施的净零碳排放，以创造可持续的未来。
