Cement silos are sealed storage containers for bulk materials, suitable for storing cement, fly ash, and various other bulk materials. The container of a containerized cement silo is equipped with a level system that can display the location and amount of the material. The hole release device can prevent material from settling too long and becoming solid. When used in conjunction with horizontal bulk cement silos and screw conveyors, the material can be transported to various locations. The silo is easy to install, safe, and reliable, making it an ideal bulk cement storage tank for various mixing stations.