基于LCA理论的装配式高延性再生微粉混凝土结构碳排放研究

doi:10.11896/cldb.23070172

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Abstract The carbon emission of prefabricated buildings and the environmental impact assessment of new green building materials are important aspects of studying the carbon reduction path of the construction industry. Based on the life cycle assessment (LCA) theory, this work constructed a carbon emission calculation model of prefabricated building with regeneration cycle process, and put forward an environmental impact assessment formula conforming to the production mode of green building materials. The emission factor method was used to quantitatively calculate the carbon emission of high ductility recycled powder concrete (HDRPC) structure in the materialization stage, and its carbon reduction in life cycle compared to a C30 concrete structure. Calculated results showed that the carbon emission intensity of 1 m³ HDRPC and C30 concrete was 0.104 kgCO₂e/(MPa·a) and 0.193 kgCO₂e/(MPa·a), respectively, which proved that the application of HDRPC has better environmental benefits than C30 concrete. Even when the HDRPC recovery rate was zero, the HDRPC structure in this case could still save 31.86 kgCO₂e compared to the C30 concrete structure.

Key words： prefabricated building high ductility recycled powder concrete (HDRPC) carbon emissions life cycle assessment (LCA)

Published: 10 December 2024 Online: 2024-12-10

CLC number:

TU375.4

Fund:General Projects of National Natural Science Foundation of China (52278507) , Shandong Natural Science Foundation (ZR2020ME245), and Key R & D Program of Shandong Province (Major Science and Technology Innovation Project) (2021CXGC011204).

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	Articles by authors
	YU Xiaohan
	LI Xiuling
	MA Rui
	SUN Haodong
	SU Zhenpeng

Cite this article:

YU Xiaohan,LI Xiuling,MA Rui, et al. Study on Carbon Emission of Assembled High Ductility Recycled Powder Concrete Structure Based on LCA Theory[J]. Materials Reports, 2024, 38(23): 23070172-7.

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http://www.mater-rep.com/EN/10.11896/cldb.23070172 OR http://www.mater-rep.com/EN/Y2024/V38/I23/23070172

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