International Science and Technology Journal

This paper presents a study some properties of concrete in both cases soft and hardened states, using type domestic chemical plasticizers, produced by the Libya petrochemical industry company, to determine the optimal proportions to study the material used, and study of some tests of concrete under its influence, as pressure and tensile test. In order to keep pace with urban developments in building technology, to produce modern building with the latest innovations of modern science. This development includes the use of chemical additives for concrete