上海市废弃混凝土来源与回收前景

对上海市废弃混凝土的产生来源及其数量进行了调查,并预测了未来10年内由于住宅建设产生的废弃混凝土数量.结果表明,旧建筑物的拆除和市政工程的动迁及重大基础设施的改造是废弃混凝土产生的主要来源.未来10年内,每年仅由住宅拆迁和新建产生的废弃混凝土量就可达1390万t.最后,还从天然砂石集料资源、人口密度和工业化发展水平等方面对上海市废弃混凝土的回收前景作了初步分析.

Shanghai Abandoned Concrete Sources and Their Recycling Prospects

The source and amount of waste concrete in Shanghai are investigated and predicted. It is shown that the demolition of old buildings and the rebuilt of infrastructure are the key common sources of the waste concrete in Shanghai. And in the next ten years, the annual amount of waste concrete would be reached 13.9 million tons. From the aspects of the scarce of natural aggregates source, the high population density as well as the high level of industrialization, a bright prospect for recycling waste concrete in Shanghai is discussed.