A cement silo is rapidly loaded with cement which is sequentially delivered to a cement receiver at the silo by dump trucks. The receiver extends to a blowoff station at the base of the silo, and a riser pipe extends from the blowoff station to an upper end portion of the silo and discharges the cement downwardly thereinto. Loads of cement are thus rapidly sequentially delivered to the silo, and each unloaded truck may quickly leave the site and pick up another load while the next truck delivers its load of cement. This system thus provides rapid sequential unloading and a quick return to service of each unloaded truck.