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硅酸盐通报 ›› 2026, Vol. 45 ›› Issue (1): 30-39.DOI: 10.16552/j.cnki.issn1001-1625.2025.0619

• 水泥混凝土 • 上一篇    下一篇

路面水泥混凝土碳汇环境效益的时滞分析与动态核算

杨兆宁1,2(), 张端1,2, 孙博学1,2(), 高峰1,2, 李小青1,2, 聂祚仁1,2, 崔素萍1,2   

  1. 1.北京工业大学材料科学与工程学院,北京 100124
    2.材料循环低碳再生全国重点实验室,北京 100124
  • 收稿日期:2025-06-24 修订日期:2025-07-14 出版日期:2026-01-20 发布日期:2026-02-10
  • 通信作者: 孙博学,博士,副教授。E-mail:sunboxue@bjut.edu.cn
  • 作者简介:杨兆宁(2001—),男,硕士研究生。主要从事材料生命周期工程的研究。E-mail:yangzhaoning0520@163.com
  • 基金资助:
    国家自然科学基金重大项目(52494941)

Time-Lag Analysis and Dynamic Accounting of Environmental Benefits of Pavement Cement Concrete Carbon Sequestration

YANG Zhaoning1,2(), ZHANG Duan1,2, SUN Boxue1,2(), GAO Feng1,2, LI Xiaoqing1,2, NIE Zuoren1,2, CUI Suping1,2   

  1. 1. College of Materials Science and Engineering,Beijing University of Technology,Beijing 100124,China
    2. State Key Laboratory of Materials Low-Carbon Recycling,Beijing 100124,China
  • Received:2025-06-24 Revised:2025-07-14 Published:2026-01-20 Online:2026-02-10

摘要:

水泥材料生命周期内具有显著的碳汇潜力,但目前仍缺乏具体的碳汇环境效益核算方法。本文构建了基于动态指标的路面水泥混凝土碳汇时滞分析模型,系统评估了路面水泥混凝土全生命周期内的碳汇时间分布及其环境效益,并提出了用于修正静态碳核算结果的时间因子α与减排偏移量β。结果表明,100年内水泥材料碳汇总量占水泥生产排放量的22.18%。相比动态方法,采用传统方法高估了53.8%的碳汇效益。此外,时滞分析得到,100年时限内α为0.65,β为38 614.79 kgCO2e,水泥碳汇的环境收益可通过αβ进行快速修正。研究结果可为水泥材料碳汇精准计量提供方法依据,对长寿命基础设施系统的碳管理策略制定具有重要意义。

关键词: 路面水泥混凝土, 碳汇, 时滞效应, 动态生命周期评价, 时间因子, 长寿命系统

Abstract:

Cement materials exhibit significant carbon sequestration potential over their life cycle. However, effective accounting methods for their environmental benefits remain underdeveloped. This study established a time-lag analysis model for pavement cement concrete carbon sequestration based on dynamic characterization metrics, enabling a systematic evaluation of the temporal distribution and environmental benefits of carbon sequestration throughout the life cycle of pavement cement concrete. To address the shortcomings of static accounting approaches, two corrective parameters are proposed: the time factor α and the emission offset β. Results show that over a 100 a timeframe, the total carbon sequestration from cement materials accounts for 22.18% of the CO2 emissions associated with cement production. Compared to the dynamic approach, traditional methods overestimate the environmental benefit of cement carbonation by 53.8%. Moreover, the time-lag analysis reveals that under a 100 a time horizon, α is 0.65 and β is 38 614.79 kgCO2e. These parameters allow for rapid correction of static carbon accounting outcomes. The findings provide a methodological foundation for the accurate quantification of cement carbon sequestration and offer strategic implications for carbon management in long-lived infrastructure systems.

Key words: pavement cement concrete, carbon sequestration, time-lag effect, dynamic life cycle assessment, time factor, long-lived system

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