Cement in bags (Big bags or bags) must be stored in closed, covered and dry premises, which do not have any type of leak. In the case of low, coastal or river locations, the possibility of flooding must be taken into account. The bags will preferably be placed on wooden pallets, or other material, leaving a minimum separation of 10 cm from the walls of the warehouse, and no less than 15 cm from the floor. There must be sufficient space between stacks to allow inspection and sampling. The height of the stack will not exceed 3 Byg bags or 12 bags, and in the case of pre-slinged stacks and 40 kg bags, up to 16 bags will be allowed. Failure to comply with these types of indications is a source of soft lump formation and consequences for the mixing of mortars and concretes made with these hydraulic cements. Each new batch of cement will preferably be identified according to the type, quality grade, origin and production date. To facilitate the operation, the rows in the warehouse will be duly marked. When removing hydraulic cement from the warehouse, the batches with the longest storage time will be dispatched. In cases of storage of hydraulic cement in bags for more than 3 months, it is necessary to observe whether there are hard lumps and perform the test for loss on ignition. In road transport, the loading surface must be dried before placing the bags, and the load must be covered with a blanket of impermeable material to prevent it from getting wet.