Abstract:In order to study the technology and engineering application of recycled concrete, its production process, initial strength, deformation performance, mix proportion, freeze-thaw resistance, carbonation resistance, chloride penetration resistance and creep resistance are described and analyzed in detail. It is found that it has the enormous potential and the reliable means to dispose the waste concrete. If the recycled concrete is directly used to replace the concrete, it is still required to consider some differences between the two, and more in-depth research and exploration are still necessary.