مدى تأثر قوى الشد لحديد تسليح قياس 16مم عند تعرض الخرسانة المسلحه به للنار مع اختلاف مسافة الغطاء الخرساني

الملخص EN

This research is to study how the fire affecting the tensile strength of two samples for reinforced concrete with different dimension of concrete covered the steel bar diameter was 16 mm.

a two form made from wood and the 16mm steel bar embedded inside when the concrete poured then the form was opened after 7 days then the sample has been exposed to fire for 80 minutes then after it cooled up the steel bar had been taken to tensile test