Article Title

Betonarme Kirişlerde Makro Fiber Sentetik Katkı Kullanımının Etkileri


In this study, the effects of the use of macro-fiber synthetic reinforcement (MFSD) as an additive material in reinforced concrete beams on the behavior of concrete beams were investigated. For this purpose, reinforced concrete beams and 0,6% by volume MFSD reinforced concrete beams were prepared. The dimensions of all beams are designed as 150x230x1400 mm. the beams; It is designed so that all physical properties such as transverse reinforcement spacing, aperture between supports, cutting span, beam effective height are the same. Tension reinforcement 2Ф14, pressure reinforcement 2Ф12 and Ф8 S420 steel were used as transverse reinforcement in all beams. In the concrete mixtures used in the study, CEMI 42,5 cement, coarse (4-11 mm) aggregate, fine (0-4 mm) aggregate and water were used. Mixing calculations were made with a water/cement ratio of 0.5. In macro-fiber synthetic reinforced concrete, 0.6% of the amount of concrete mixture is added with the volume of MFSD and all other properties are kept the same. 28-day compressive strength test results of the concretes produced were compared. Reinforced concrete beams are subjected to 3-point loading test and load (kg) -displacement (mm) plots were drawn with the data obtained from the displacement meter placed under the beams corresponding to its mid-point. At the end of the experiment, cracks formed in beams and load (kg)-displacement (mm) graphs are examined and witnessed reinforced concrete beams and reinforced concrete beams with MFSD; crack formation, crack widths, breaking order, energy absorption capacity, strength and deformation amounts were compared.