Analysis on Performance and Carbon Emission of Recycled Aggregate Concrete
DOI:
https://doi.org/10.54097/3bm1ry91Keywords:
Carbon emission, recycled aggregate concrete, concrete modification.Abstract
Climate change is a major global challenge, of which carbon dioxide is a particularly significant contribution. The construction industry has a significant impact on carbon emissions, especially the concrete production process, which not only consumes a lot of energy, but also produces a lot of carbon dioxide along with carbonate decomposition. Therefore, the properties and carbon emission analysis of recycled aggregate (RCA) concrete are discussed in this paper. Firstly, the preparation technology of RCA concrete is discussed. Then the factors affecting the performance of concrete and the modification methods of RCA are analyzed to improve the performance of concrete. Finally, the carbon emission of RCA concrete in the raw material production stage is compared with that of conventional concrete. The results show that RCA concrete has only 84.1% of the carbon emissions of conventional concrete, which is a very effective measure to reduce emissions in the construction industry. This paper aims to provide theoretical support for tackling climate warming and reducing carbon emissions in the construction industry by studying the preparation, performance and carbon emissions of RCA concrete materials.
Downloads
References
[1] Research report on energy consumption and carbon emission of buildings in China (2023). Architecture, 2024, (02): 46-59.
[2] Li Hui, Deng Quanxue, Zhang Jingxiao. Research on environmental emission and material carbon footprint of reinforced concrete construction oriented to building types. Ecological Economics, 2019, 35(03): 194-200.
[3] China building materials industry carbon emissions report (2020). Journal of building materials in China, 2021, (4): 59-62.
[4] CCUS Projects Explorer-Data Tools, IEA. https://www.iea.org/data-and-statistics/data-tools/ccus-pro jects-explorer.
[5] Xiao Yu, Wu Shuigen, Xiao Jianzhuang, et al. Carbon emission analysis of green concrete. Building Construction, 2019, 41(02): 312-317.
[6] Yuan L. Concrete in "ice ribbon" creates a Chinese miracle, looking forward to "together to the future". World of Concrete, 2022, (02): 13-17.
[7] Xiao Jianzhuang, Tang Yuxiang, Zhang Kaijian, et al. Stress - strain relationship of recycled coarse aggregate concrete. Engineering Mechanics, 2024, 41(02): 43-55.
[8] Zou Yan, Cao Dafu. Study on the application of recycled aggregate in concrete. New building materials, 2020, 47(4): 3331-3338.
[9] Ge Zhi, GAO Tianming, Wang Siqi, et al. Effect of coarse aggregate characteristics on flow performance of freshly mixed self-compacting concrete. Concrete, 2024, (07): 169-173.
[10] Tang Lei, Li Leilei, Xin Jianghui. Research on processing technology of recycled construction waste aggregate. Brick and Tile, 2024, (11): 34-37.
[11] Wei Maozhi, Lin Mingqiang, Xie Qun, et al. Study on life-cycle carbon emission analysis and calculation method (model) of recycled aggregate concrete. Concrete, 2024, (7): 1-8.
[12] Su Xiaowei, Wang Anqi, Xiao Junrong, Yang Zhenhuai, Fu Yibing, Wu Xutao. Experimental study on preparation and compressive strength of recycled aggregate concrete. Journal of Anhui Vocational and Technical College of Water Resources and Hydropower, 2021, 21(3): 8-12.
[13] Geng Mingyang, Li Xiaohua, Zeng Zhi, et al. Study on preparation and performance test of fully recycled fine aggregate concrete. Journal of Hunan Institute of Engineering (Natural Science Edition), 2024, 34(01): 68-75.
[14] Sun Fei, Du Jiabao, GAO Qiang, et al. Study on macro and micro characterization and physical and chemical characteristics of construction waste recycled aggregate. Sichuan Cement, 2021, (02): 17-19.
[15] Wei Hongjun, Yan Hongsheng, Zhu Yaguang, et al. Study on modification of properties of recycled coarse aggregate by chemical strengthening. Journal of Shandong Agricultural University (Natural Science Edition), 2021, 52(06): 1009-1016.
[16] Li Keqing, Qi Guoqiang, Cao Fangfei, et al. Research progress on characteristics and modification methods of recycled aggregates from construction waste. Concrete and Cement Products, 2024, (11): 115-120.
[17] 2023 Global Status Report for Buildings and Construction: Beyond foundations - Mainstreaming sustainable solutions to cut emissions from the buildings sector. 2024.
[18] Song H Y. Study on carbon emission calculation and carbon emission reduction path of ready mixed concrete. Building Construction, 2024, 46(09): 1432-1436.
[19] GB/T 51366-2019, Building Carbon Emission Calculation Standard, 2019.
[20] T/CBMF 27-2018, Evaluation Methods and Requirements for Low Carbon Products of Ready Mixed Concrete, 2018.
[21] DB11/T1959-2022, Energy Consumption Limit of Prefabricated Components in Prefabricated Buildings, 2022.
[22] Wu Shuan, Jiang Yehao, Wang Xin, Wang Bing. Calculation of carbon emission in life cycle of recycled concrete pavement brick. Construction Technology, 2014, 43(24): 32-36.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Highlights in Science, Engineering and Technology
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
How to Cite
