Deterioration of the concrete may be due to the environmental conditions and corrosion of steel reinforcement as a result of chloride ions has become a major problem in reinforced concrete structures. In an attempt to combat the problem various methods have been used. One of the ways to make a material of high mechanical properties and high aesthetic values is through a polymer modification of mortar and concrete. As a result, various polymer-based admixture have been developed, and polymer modified mortar and concrete using them are currently popular construction material because of their good cost-performance balance. To achieve desired concrete properties, experimental research on certain types of polymer admixture is necessary. Through researching and finding the optimal admixture quantity, concrete properties can be significantly improved. The wide applications of polymer modification for mortar and concrete urges researchers to carry out extensive work in order to establish a good base for this development. || Masalah utama yang dihadapi di dalam industri pembinaan ialah masalah ketahanan struktur konkrit terhadap keadaan persekitaran dan kakisan tetulang besi oleh ion-ion klorida