51 Modified the Iraqi Ordinary Portland Cement (UM-QASER) Using Aniline Monomer.

This study try to modified the concrete mixes by adding the (monomer of aniline) to the fresh concrete mixes using two type of cement mortar cubes (50 x 50 x 50 mm) with cement : sand ratio 1:3 and concrete cubes with dimension (150 x 150 x 150) mm with concrete mix (cement: sand: gravel) (1:1.5:3). This research includes two important variables factors, the polymer ratio and (monomer of aniline) and the method of curing, (water curing, moist curing, and dry curing (by the air). This research also investigate the compressive strength of Iraqi Ordinary Portland cement manufactured by (Um Qaser Factory), this property was modified by using (Monomer Aniline) (impure) with different volume ratio from 1 ml to 5ml (volumetric quantity) of cement as additive to the mortar and concrete mixes at age 14 days. The cement, sand and gravel were analysis according to the B.S specification. The result show that the water curing (for mortar and concrete cubes immersed in water) is the better than the other method. The maximum compressive strength obtained in this study was 14.49 MPa for mortar with 2 milliliter of monomer, and (15.24) MPa for moist curing. Also the splitting tensile strength, flexural strength were computed at 2 milliliter monomer additive comparing with Kuwait cement (Abraj) and the result appear that Iraqi cement showing better results.