Modern societies make a hard effort to improve the sustainability of resources due to enhanced environmental sensitivities in nowadays. This paper investigates the usability of recycled construction and demolition materials as an alternative to virgin aggregates in geotechnical applications such as the filling. The physical and geotechnical properties of recycled construction and demolition materials were determined by laboratory tests (i.e. sieve test, flatness test, Los Angeles abrasion test, water absorption test, pycnometer test, modified compaction test, California bearing ratio test, unconfined compressive strength test and resilient modulus test) and a comprehensive laboratory evaluation was carried out. Moreover, similar tests were conducted with a type of high-quality virgin aggregate material frequently used in fillings. The results of the tests conducted on construction and demolition materials were compared with results of the tests conducted on both virgin aggregate and different recycled aggregates which are accepted as an alternative to virgin aggregates used in the filling in the literature. Results of the tests conducted on construction and demolition materials were also evaluated according to the limit values in technical specifications of highway administrations of various countries. As a result of this study, it has been concluded that construction and demolition materials can be a good alternative to virgin aggregate used in the filling provided that it is taken measure against excessive water absorption value.

由于当今社会对环境的敏感性增强，现代社会正在努力改善资源的可持续性。本文研究了可循环使用的建筑和拆除材料在土工应用（例如填充）中作为原始骨料的替代品的可用性。回收的建筑和拆除材料的物理和岩土特性通过实验室测试（即筛分测试，平面度测试，洛杉矶耐磨性测试，吸水率测试，比重瓶测试，改良压实测试，加利福尼亚轴承比测试，无侧限抗压强度测试和弹性模量测试）和全面的实验室评估。此外，对经常用于馅料的一种优质原始骨料进行了类似的测试。将在建筑和拆除材料上进行的测试结果与对原始骨料和不同回收骨料进行的测试结果进行了比较，这些文献被认为是文献中用于填充的原始骨料的替代品。还根据各国公路管理局的技术规范中的限值评估了对建筑和拆除材料进行的测试结果。这项研究的结果是，可以得出结论，只要采取措施防止过高的吸水率，建筑和拆除材料可以很好地替代填料中使用的原始骨料。