Various types of recyclable materials are currently used in civil engineering applications. These include tire shreds, scrap tire rubber, fly and bottom ash, blast-furnace slag, steel slag, cement kiln dust, silica fume, reclaimed asphalt pavement (RAP), and rice husk ash. Reutilization of these recyclable materials in civil engineering applications that require large volumes of materials is beneficial. When these waste materials are used in place of other conventional materials, natural resources are preserved and expensive and/or potentially harmful waste disposal is avoided. The main focus of this special issue is the use of recyclable materials in civil engineering applications for sustainable development. This special issue will address not only key issues of the mechanical behavior of recyclable materials and their environment impact but also provide state-of-the-art reviews on their use in civil engineering applications. Potential topics include, but are not limited to:

• Chemical and mineralogical composition
• Compaction characteristics
• Shear strength and deformation behavior
• Constitutive behavior
• Soil engineering
• Construction and performance of civil engineering structures
• Case histories
• EPA regulations

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