工艺与制造英文2023被引 40
纤维增强复合材料作为混凝土梁可持续增强选项的生命周期评估对比研究
A comparative life cycle assessment of fiber-reinforced polymers as a sustainable reinforcement option in concrete beams
Sami Sbahieh, Gordon McKay, Sami G. Al‐Ghamdi · Construction Development (Qatar)
摘要整理
为应对环保需求和可持续建筑发展,本研究对纤维增强复合材料(FRP)筋作为钢筋混凝土构件增强材料的环境影响进行了生命周期评估(LCA)。FRP筋具有高抗拉强度、质轻、耐腐蚀等优势,相比传统钢筋更具竞争力,特别适用于海水混凝土配制,对阿拉伯半岛等气候恶劣、水资源短缺地区具有重要意义。本研究对玻纤增强复合材料(GFRP)筋、碳纤增强复合材料(CFRP)筋、钢玻纤混合筋(SGFRP)与钢筋进行了环境影响对比评估,并进一步比较了淡水钢筋混凝土梁与海水GFRP/CFRP混凝土梁的环保性能。结果表明:GFRP筋在14个评估类别中的10个类别优于钢筋,CFRP筋在10个类别中表现不如钢筋,SGFRP筋性能介于两者之间,在10个类别中优于钢筋。GFRP梁在9个类别中环保性能优于钢筋梁,CFRP梁在8个类别中表现更优,这主要源于CFRP和GFRP筋的高抗拉强度使得所需配筋率降低。研究表明,在建筑工程中应用FRP筋具有明显的环境优势,强调了可持续建筑实践在最小化环境影响中的重要性。
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