Thermal performance optimisation of foam concrete for energy-efficient construction: A state-of-the-art review

作者：Jingbo Liu, Yue Liu, Xing Ma, Haolan Xu, Xuan Wu, Ming Liu, Yan Zhuge · 发表于：Journal of Building Engineering · 年份：2025 · DOI：10.1016/j.jobe.2025.113899 · 被引用次数：7 · 研究领域：Concrete and Cement Materials Research、Magnesium Oxide Properties and Applications、Innovations in Concrete and Construction Materials

With the increasing demand for energy-efficient and multifunctional construction materials, foam concrete has attracted significant attention due to its combined structural and thermal advantages. This paper systematically reviewed the thermal performance of foam concrete, focusing on the thermal insulation mechanism and latent heat thermal energy storage (TES). Major advancements in enhancing insulation performance include gas-solid system modification, foam stabilisation, nano-insulation techniques, and the incorporation of pozzolanic and porous aggregates. The integration of phase change materials (PCMs) provides an effective solution for thermal energy storage and temperature regulation, mitigating temperature fluctuations and improving thermal comfort. Microencapsulation and porous support impregnation are critical techniques to address PCMs leakage while ensuring compatibility with the foam concrete matrix. Current thermal efficiency enhancement strategies in foam concrete primarily focus on individual techniques, either optimising thermal insulation properties or TES systems. However, research on synergistic hybrid solutions that simultaneously optimise insulative capacity, energy storage, and mechanical performance remains lacking integration. Therefore, this review aims to clarify the thermal enhancement mechanisms of each approach, providing a structured framework for hybridisation strategies that balance thermal regulation, mechanical integrity, and energy efficien...