再生混凝土集料生产过程质量控制  

Quality control in producing high quality recycled concrete aggregates

作　　者：孙家瑛[1] 孔令鹏[1,2] 

机构地区：[1]浙江大学宁波理工学院绿色建材与废弃物资源化研究中心,浙江宁波315100 [2]上海大学土木工程系,上海200042

出　　处：《混凝土》2013年第7期50-55,共6页Concrete

基　　金：科技部国际合作重大项目(2010FA24590);国家自然科学基金(50808160)

摘　　要：随着我国经济的快速发展和城镇化进程的加快,基础建设规模越来越大,拆除旧建筑产生了大量的建筑垃圾,而每年有上亿立方米的天然集料用于浇筑混凝土,带来了一系列自然资源消耗、环境污染和可持续发展的问题。为了缓解这一矛盾,高质量的再生混凝土集料的开发应用研究已被广泛的关注。先在对比国内外再生集料的加工工艺和流程的基础上,分析了解各种工艺中各个工序对再生集料质量控制的作用,通过有效的整合与分析,提出一套新的高质量的再生混凝土集料加工工艺。然后对建议的工艺该如何进行质量控制进行了说明。在分析了再生混凝土集料质量指标的基础上,结合国内外现有的分级标准,提出了建议的分级标准。With the rapid development of our economy and quickened urbanization process,the foundation construction scale is increasingly bigger.While tearing down the old buildings produces a host of construction waste,hundred million cubic meter of natural aggregate are used to pouring concrete.All these things bring a series of problems of the consumption of natural resources,pollution of the environment and the problem of sustainable development.In order to alleviate the contradiction,the development and application study of high quality recycled concrete aggregates had been widespread concerned.At first,based on the comparison of the recycled aggregates processing technology at home and abroad,it analysed and understood the function of recycled aggregate quality control in different steps of different processing technology,through the effective integration and analysis,a new recycling technology for producing high quality recycled concrete aggregates was proposed.Secondly,explained how to control the quality of the recycled aggregates for suggested technology.Finally,a proposed classification standard was proposed on the analysis of the recycled concrete aggregate quality index and the existing classification both at home and abroad.

关 键 词：再生混凝土集料 生产工艺 质量控制 

分 类 号：TU528.041[建筑科学—建筑技术科学]