title: Reclamation chain of waste concrete: A case study of Shanghai.
abstract: A mass of construction and demolition (C&D) waste are generated in Shanghai every year, and it has become a serious environment problem. Reclaiming the waste concrete to produce recycled aggregate (RA) and recycled aggregate concrete (RAC) is an effective method to reduce the C&D waste. This paper develops a reclamation chain of waste concrete based on the researches and practices in Shanghai. C&D waste management, waste concrete disposition, RA production and RAC preparation are discussed respectively. In addition, technical suggestions are also given according to the findings in practical engineering, which aims to optimize the reclamation chain. The results show that the properties of RA and RAC can well meet the requirement of design and practical application through a series of technical measures. The reclamation chain of waste concrete is necessary and appropriate for Shanghai, which provides more opportunities for the wider application of RA and RAC, and it shows a favorable environmental benefit.
authors.affiliation: Department of Structural Eng., College of Civil Eng., Tongji University, Shanghai 200092, PR China; Key Laboratory of Advanced Civil Eng. Materials, Ministry of Education, Shanghai 200092, PR China. Electronic address: jzx@tongji.edu.cn.
authors.forename: Jianzhuang
authors.initials: J
authors.lastname: Xiao
authors.affiliation: Department of Structural Eng., College of Civil Eng., Tongji University, Shanghai 200092, PR China.
authors.forename: Zhiming
authors.initials: Z
authors.lastname: Ma
authors.affiliation: Department of Structural Eng., College of Civil Eng., Tongji University, Shanghai 200092, PR China.
authors.forename: Tao
authors.initials: T
authors.lastname: Ding
mesh_terms: D002681:China; D003252:Construction Materials; D007220:Industrial Waste; D059027:Recycling / Q000379:methods*; D018505:Waste Management / Q000379:methods*
chemical_list: D007220:Industrial Waste
keywords: Reclamation chain; Recycled aggregate (RA); Recycled aggregate concrete (RAC); Shanghai; Waste concrete