mycem Portland Pozzolana Cement is a kind of Blended Cement which is produced by grinding the Portland clinker with gypsum and highly reactive pozzolanic materials in measured proportions, The secondary reaction of High Reactive Silica (HRS-pozzolana) present in mycem reacts with calcium hydroxide (liberated by the hydrating Portland cement) in the presence of water forming stable Calcium Silicates Hydrate (CSH Gel) that have the cementitious properties and gives more strength to cement and its works.