مرکز منطقه ای اطلاع رساني علوم و فناوري - The Concrete Quality Control in Turkish Codes from the Past to the Present

Abstract :

Reinforced concrete (RC) is a composite material composed of concrete and steel. The production of concrete according to design strength is compulsory in codes related to RC. The mechanical properties of concrete which constitutes different material such as compressive and tensile strength depend on many parameters. In codes, concrete classes are defined according to the characteristic compressive strength. For quality control, the specimens are taken from hardened concrete, they are tested and compressive strengths are determined. In evaluating the test results, the conformity rules in codes are used. These rules must be satisfied for acceptance of the produced concrete. The different codes related to concrete and RC have been published since the establishing Turkish Standard Institute (TSE), there have been different rules for control quality of the concrete in these codes. The samples of these different codes in Turkey are TS 500/1971, TS 500/1984, TS 500/2000, TS 11222/2001 ve TS EN 206-1. Nowadays, educated technical personals in last 30 years such as civil engineers exactly do not know the conformity rules applied on the produced concrete for quality control. Therefore, different approaches have been arised in evaluating test results. In this study, the conformity rules were investigated for concrete quality control in Turkish codes from the past to the present and the examples about application of conformity rules were given. Thus, the knowledge is updated for the technical personals which evaluate the quality control of concrete according to old conformity rules and the quality control of concrete specimens produced from the same material at same conditions is evaluated accurately by the technical personals.