The paper introduces the application of the recycled concrete at home and abroad,researches the application status from roads and buildings projects,proves the concrete has greater economic and social benefits according to its application in projects,so it has sound prospect.%介绍了国内外对再生混凝土的应用情况，从道路工程和建筑工程两方面，对其应用现状进行了深入研究，通过具体工程应用表明，再生混凝土具有良好的社会、环境和经济效益，应用前景十分乐观。
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