Materiales de Construcción, Vol 65, No 318 (2015)

Preparation and properties of high-strength recycled concrete in cold areas


https://doi.org/10.3989/mc.2015.03214

Y. Haitao
Harbin Institute of Technology, China

T. Shizhu
Harbin Institute of Technology - Suzhou University of Science and Technology, China

Abstract


Concrete waste was processed into recycled coarse aggregate (RCA), subsequently used to prepare high-strength (> 50 MPa) recycled concrete. The resulting material was tested for mechanical performance (ULS). The recycled concrete was prepared to the required design strength by adjusting the water/cement ratio. Concrete containing 0, 20, 50, 80 and 100% recycled aggregate was prepared and studied for workability, deformability and durability. The ultimate aim of the study was to prepare high-strength recycled concrete apt for use in cold climates as a theoretical and experimental basis for the deployment of recycled high-strength concrete in civil engineering and building construction.

Keywords


Recycled concrete; Water/cement ratio; Durability; Workability; Freeze/thaw resistance

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