EFFECT OF ORDINARY PORTLAND CEMENT IN FLY ASH BASED GEOPOLYMER SYSTEM by Michael Terefe Woldemariam 14172 Thesis submitted in partial fulfillment of the requirements for the Bachelor of Engineering (Hons) (Civil) SEPTEMBER 2014 Universiti Teknologi PETRONAS Bandar Seri Iskandar 31750 Tronoh Perak Darul Ridzuan