The traditional experimental study of solid waste concrete mainly focuses on the strength characteristics and microstructure, but ignores the influence of carbon emission of solid waste in concrete. This paper aims to reduce the amount of cement by increasing the replacement rate of silt and increasing the water-binder ratio under the premise of ensuring the strength of concrete, so as to reduce the impact of concrete production on the environment. The test results show that with the increase of water-binder ratio and silt replacement rate, the amount of water reducing agent needs to be added to maintain the working performance of self-compacting concrete. Although the trend in hardened concrete performance varies inversely with the silt replacement rate, the compressive strength reaches 29 MPa at a water-binder ratio of 0.44 and a silt replacement rate of 20%, which satisfies the criteria for non-structural components. At the same time, the carbon emission of the ratio is reduced by 35.48% compared with the base group, emphasizing the potential and application value of the material in the field of green building materials.