【作者】 刘勇超； 陈春； 陈振中； 易欢乐； 濮卫； 宋凯； 张亚梅；

【Author】 Liu Yongchao;Chen Chun;Chen Zhenzhong;Yi Huanle;Pu Wei;Song Kai;Zhang Yamei;School of Materials Science and Engineering, Southeast University;Second Engineering Co., Ltd, of China Tiesiju Civil Engineering Group;Nanjing Public Construction Center;

【机构】 东南大学材料科学与工程学院； 中铁四局第二工程有限公司； 南京市公共工程建设中心；

【摘要】 本研究以废弃黏土砖生产再生填料,利用生命周期评价理论对再生填料在市政道路工程应用的环境影响与经济效益进行定量评价,并与废弃黏土砖直接填埋处置并以天然填料作为替代材料进行比较。结果表明:废弃黏土砖生产再生填料并用于市政道路工程涉及的运输距离较短,其在全球气候变暖以及酸化等方面的环境影响明显低于填埋处置,且废弃黏土砖的再生利用能有效降低填埋处理过程的土地占用。1 t石灰稳定再生填料应用于市政道路底基层的环境收益为10.136元,节约成本70.588元;1 t再生填料直接用于路床的环境效益为7.396元,增加成本29.539元。可为类似工程中建筑固体废弃物的资源化利用与管理策略的制定提供一定的参考与理论支持。更多还原

【Abstract】 In this study, waste clay bricks were used to produce recycled fillers.The environmental impacts and economic benefit of recycled fillers used in municipal road were quantitatively evaluated by life cycle assessment in comparison with the direct landfill of waste clay bricks.The obtained results show that, due to the shorter transportation distance, the environmental impacts in terms of global warming and acidification of the recycled fillers prepared with waste clay bricks used in municipal road is significantly lower than that of landfill.Moreover, the recycling of waste clay bricks can effectively reduce the land occupation during the landfill treatment.Recycling 1 t recycled fillers in subbase could achieve an environmental benefit of 10.136 Yuan, and save costs of 70.588 Yuan.While, recycling 1 t recycled fillers in roadbed could achieve an environmental benefit of 7.396 Yuan, and increase costs of 29.539 Yuan.The research results can provide a certain reference and theoretical support for the development of utilization and management strategies of construction solid waste in similar projects.更多还原