1 Introduction
An introduction to the study of additives from the point of view of controlling the quality of concrete.
It is well established that concrete is a very complex material, especially reinforced, due to considerations related to the difference in the properties of the concrete components, as well as the difference in the properties of the concrete itself from steel reinforcement or fiber. Therefore, these differences should be taken into account in the design calculations, equations, and curves, whether the Ultimate state or the previous working state
The procedures and laws for controlling the quality of concrete in the design or implementation stages, whether before, during, or after pouring, hardening, and tests of materials and samples, are at the top of the responsibilities of external quality control consultants, quality control engineers, internal supervision, and the necessary processes to ensure the achievement of structural concrete sectors that conform to assumptions and requirements.