School of Civil Engineering, Gansu Advanced Civil Engineering Materials Engineering Research, Center, Lanzhou University of Technology, Lanzhou, 730050, Gansu, China.
Jiangsu Key Laboratory of Civil Engineering Materials, School of Materials Science and Engineering, Southeast University, Nanjing, 211189, China.
Environ Sci Pollut Res Int. 2024 Oct;31(47):57804-57821. doi: 10.1007/s11356-024-34883-6. Epub 2024 Sep 18.
Building carbon emissions (CE) have become the focus of the current topic, but there is still no mature typical building life cycle theory method from the perspective of building materials, and the research on the relationship between building durability and building life cycle is still insufficient. To this end, this study established a detailed calculation method for building carbon emissions (CE) and divided the building life cycle (BLC) into three stages: manufacturing, use, and demolition according to the result analysis. In addition, a durability improvement and carbon reduction scheme of "partition, resistance, and repair" is proposed, and the carbon emission reduction index of effectiveness index is proposed. The proposed method is applied to the case of residential buildings in Northwest China. The main conclusions are as follows: the CE of residential buildings are more dependent on the use stage. If the centralized heating system is adopted, the CE in the operation stage account for 80-90%. If the air conditioning refrigeration and heating system is adopted, the CE in the operation stage account for about 50%. Using the method of improving the durability of buildings to extend the service life of buildings is very significant for building carbon reduction (RC); the effectiveness index proposed in this paper includes key indicators such as total CE, service life, and building area. Compared with the traditional index, the effectiveness index is more accurate and comprehensive. CR is the focus of green building, but the impact of economy needs to be considered in practical engineering. In the future research, durability, CE, and economy need to be considered comprehensively for careful study.
建筑碳排放 (CE) 已成为当前的焦点，但从建筑材料的角度来看，仍没有成熟的典型建筑生命周期理论方法，建筑耐久性与建筑生命周期的关系研究仍不足。为此，本研究建立了详细的建筑碳排放 (CE) 计算方法，并根据结果分析将建筑生命周期 (BLC) 划分为制造、使用和拆除三个阶段。此外，提出了一种“分区、抵抗和修复”的耐久性改进和碳减排方案，并提出了有效性指数的碳减排指标。该方法应用于中国西北地区的住宅建筑案例。主要结论如下：住宅建筑的 CE 更依赖于使用阶段。如果采用集中供暖系统，运行阶段的 CE 占 80-90%。如果采用空调制冷和供暖系统，运行阶段的 CE 占约 50%。通过提高建筑物耐久性的方法来延长建筑物的使用寿命，对建筑物的碳减排 (RC) 非常重要；本文提出的有效性指数包括总 CE、使用寿命和建筑面积等关键指标。与传统指标相比，有效性指数更准确、全面。RC 是绿色建筑的重点，但在实际工程中需要考虑经济因素。未来的研究需要综合考虑耐久性、CE 和经济因素，进行仔细研究。
