On the basis of the resource recycling and utilization of industrial construction solid waste, an investigation has been made of the solidification and disposal method of industrial construction solid waste by adopting a new type of water resistant self-healing soil solidification technology-fly ash-based soil curing agent “road fluid”. By adding the soil curing agent to the construction solid waste and cement for stabilization, a research is conducted on the material properties of the solidified construction solid waste from the perspectives of strength performance, water resistance performance, and self-healing performance, with different dosages used as controls. Research results show that the curing agent “road fluid” is catheterized with an enhancing effect on the strength, water resistance, and self-healing performance of construction solid waste at different cement dosages. The unconfined compressive strength of recycled aggregate with a cement content of 5% and the addition of curing agent “road fluid” after 7 days is higher than that of recycled aggregate without the addition of curing agent “road fluid” with a cement content of 6%. The experimental results show that this granular solid waste finds its great engineering practicality as a pavement base material. The curing agent “road fluid” helps to enhance the curing effect of recycled aggregates, thereby reducing the dosage of cement binder and achieving the goal of reducing engineering costs.