What is "sandjacking"

Sandjacking is the process of lifting concrete and filling in the space underneath with sand, which allows for frugal repairs in concrete applications. The basic premise is to lift concrete and to then fill the resultant void absolutely with compacted sand. Sandjacking includes the careful assessment of what is required to restore concrete to its original profile and the intelligent application of different materials to keep it that way. The filling provides the long term repair and protection of any flat concrete surface. Since the lifting and filling processes are distinctly separate events, each can be accomplished precisely.