Moisture is the biggest enemy of cement. Cement has great affinity for moisture and hence it should be well shielded from moisture laden current of air. The exposed cement is attacked by air which further forms lumps. If the lumps are very hard then it can not be used in any sound construction. Cement should be stored in dry, leak proof and moisture proof sheds with minimum number of windows and close fitting doors. The cement bags should be stacked on wooden planks placed about 150 to 200 mm above the floor. The space between stacks and exterior walls should be 450 to 600 mm. The maximum height of stack should not exceed 10 bags. The width of stacks should not be more than 4 bag lengths or 3 m. Thus possibilities of lumping under pressure can be prevented. In stacks more than 8 bags high, the cement bags shall be arranged alternately length-wise and cross-wise so as to tie the stacks together and minimize the danger of toppling over. The stack sh...