Biomass-based concrete could effectively decarbonize buildings in Mexico

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-04-08 DOI:10.1016/j.resconrec.2025.108264

Felipe Rosas-Diaz , Cesar A. Juárez-Alvarado , Mingming Chen , Yunyang Ye , Rupert J. Myers , Daqian Jiang

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Abstract

The building sector's substantial material consumption drives significant negative environmental impacts, necessitating sustainable alternatives. Through integration of life cycle assessment (LCA) and building energy simulation, we demonstrate that buildings made with “sargassum-based concrete” (SBC) – a concrete containing aggregates from unwanted biomass – could achieve notable climate change benefits. The main reason is SBC's reduced thermal transmittance, which lowers the energy demand for cooling and heating. Using Mexico's climate and typical residential house as a case study, we estimate that SBC buildings can reduce life-cycle greenhouse gas emissions in 29 out of 32 Mexican states over a 50-year lifespan. The reductions can reach 15.8 % in states with extreme climates (hot or cold) and further increase with extended building longevity. These findings highlight biomass-based concrete as a potential strategy for biomass utilization and building decarbonization in regions with similar resources and climate.

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生物质混凝土可以有效地使墨西哥的建筑脱碳

建筑行业的大量材料消耗对环境产生了重大的负面影响，因此需要可持续的替代品。通过生命周期评估（LCA）和建筑能源模拟的整合，我们证明了用“石笋基混凝土”（SBC）建造的建筑可以实现显著的气候变化效益。“石笋基混凝土”是一种含有不需要的生物质骨料的混凝土。主要原因是SBC的热透过率降低，从而降低了制冷和供暖的能源需求。以墨西哥的气候和典型住宅为例，我们估计，在墨西哥32个州中，有29个州的SBC建筑在50年的使用寿命内可以减少生命周期的温室气体排放。在极端气候（热或冷）的州，节能效果可达15.8%，随着建筑寿命的延长，节能效果还会进一步提高。这些发现强调了生物质基混凝土作为具有类似资源和气候的地区生物质利用和建筑脱碳的潜在策略。

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.