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硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (11): 3927-3936.

所属专题: 水泥混凝土

• 水泥混凝土 • 上一篇    下一篇

ECC路面面层的生命周期评价和成本分析

熊晓立, 杨政险, 罗盛洋, 林佳福, 董世林   

  1. 福州大学土木工程学院先进土木工程材料福建省高校研究中心,福州 350108
  • 收稿日期:2023-06-08 修订日期:2023-08-14 出版日期:2023-11-15 发布日期:2023-11-22
  • 通信作者: 杨政险,博士,教授。E-mail:zxyang@fzu.edu.cn
  • 作者简介:熊晓立(1998—),男,硕士研究生。主要从事固废综合利用的研究。E-mail:420571030@qq.com
  • 基金资助:
    福州市科技局科技创新平台项目(2021-P-031)

Life Cycle Assessment and Cost Analysis of ECC Pavement Overlay

XIONG Xiaoli, YANG Zhengxian, LUO Shengyang, LIN Jiafu, DONG Shilin   

  1. Fujian Provincial University Research Center for Advanced Civil Engineering Materials, College of Civil Engineering, Fuzhou University, Fuzhou 350108, China
  • Received:2023-06-08 Revised:2023-08-14 Online:2023-11-15 Published:2023-11-22

摘要: 超高延性水泥基复合材料(ECC)构建的面层相较于普通刚性混凝土路面面层,具有更长的使用寿命。本研究对六种典型ECC材料制作而成的面层进行了生命周期评价和成本分析。结果表明,虽然ECC面层短期内在环境影响和成本方面不占优势,但是超长的使用寿命和较低的维护频率使其在整个生命周期内的环境影响和成本远低于普通刚性混凝土面层。与普通刚性混凝土面层相比,含辅助胶凝材料(粉煤灰或矿渣)和环保纤维(聚丙烯纤维或玄武岩纤维)的ECC面层在生命周期内减少了63.2%~68.5%的增温潜势,且成本只占普通刚性混凝土面层的9.6%~23.3%。

关键词: 水泥基复合材料, 辅助胶凝材料, 路面面层, 生命周期评价, 增温潜势, 成本分析

Abstract: Compared with normal rigid concrete pavement overlay, the overlay constructed with ultra-high ductile engineered cementitious composites (ECC) has a longer service life. Life cycle assessment and cost analysis of overlayer made of six typical ECC materials were carried out. The results show that although ECC overlays do not have short-term advantages in terms of environmental impact and cost, their long-term environmental impact and cost are significantly lower than those of normal rigid concrete overlay due to their exceptionally long service life and lower maintenance frequency. Compared with normal rigid concrete overlay, ECC overlays with supplementary cementitious materials (fly ash or ground granulated blast furnace slag) and environmentally friendly fibers (polypropylene fiber or basalt fiber) reduce the global warming potential by 63.2%~68.5% within a life cycle, while their costs only account for 9.6%~23.3% of normal concrete overlay.

Key words: engineered cementitious composite, supplementary cementitious material, pavement overlay, life cycle assessment, global warming potential, cost analysis

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