Application of Recycled concrete from construction solid waste in engineering

As people's awareness of ecological environment protection gradually strengthens, it is inevitable that a large amount of solid waste will be generated in the construction production process. The reuse of these wastes has received widespread attention both domestically and internationally. The plain concrete prepared by using recycled aggregates from construction solid waste can fully meet the quality acceptance standards of plain concrete engineering in terms of working performance, mechanical properties, and appearance quality under the conditions of 30% fly ash replacement rate and 50% recycled coarse aggregate replacement rate. Moreover, the construction and construction costs of each cubic meter of concrete can be reduced by about 50 yuan, and the cost can be reduced by 10.5%, significantly reducing construction production costs and post maintenance costs. This is in line with the national "dual carbon" emission reduction policy, with significant economic and environmental benefits, and has broad prospects for promotion and application.