Criteria for Concrete Construction Control, Sampling and Their Maintenance in Some Cases of Study In Kosovo

This subject has a purpose the study and the production of concrete quality in compliance with the norms and standards of production. The longevity and sustainability of concrete structures is one of the main tasks in the field of construction. To produce high strength concrete with a required quality we must meet certain requirements such as: The utilization of concrete constituent materials must be suitable for the production of concrete under environmental conditions of use. Producing the right recipe to obtain the required grade concrete, always meeting the criteria of EN 206-1: 2000, but also considering the costs to be as economical as possible. Also, cast in situ the concrete, the maintenance of the structure must meet to the maximum all requirements for conformity, quality and production of concrete. In this subject, concrete tests of concrete samples will be examined to derive a result of the compliance with the Concrete Conformity Standard , at our sites in Kosovo. These analyszes were made in three different concrete manufacturers, for whom concrete samples were taken and the properties of wet concrete and hardened concrete properties, were examined by applying norms and standards for concrete production. Examinations of wet concrete properties have been carried out at the sites in Pristina, while the rest of the examination of the properties of hardened concrete has been carried out in the laboratory IPE-PROING in Pristina, which is certified by the General Directorate of Accreditation of Kosovo (DAK). These examinations were done after 28 days of laboratory maintenance.All stages of study and examination are based on Kosovo Standards SK EN 206-1: 2007, which are adapted to European Standards EN 206-1: 2000.Hope to have carried out a detailed study in the field of concrete production in our country