EFEK PERKUATAN GLASS FIBER REINFORCE POLYMER-SHEET PADA BALOK BETON BERTULANG DENGAN TULANGAN KOROSI

This article presents about reinforced concrete beams whose reinforcement has been corroded and then externally reinforced in the form of sheet type glass fiber or Glass Fiber Reinfroced Polymer-Sheet (GFRP-S). In this study, the variables are based on variations in the level of corrosion on the reinforcement. Five kinds of test objects used in the form of blocks with dimensions of 15x20 cm and length of 160 cm. The main reinforcement used is  12 and  8-100 stirrup reinforcement. The quality of the concrete used is 25 MPa. Normal reinforced concrete beams without reinforcement as control beams (BN), normal reinforced concrete beams with GFRP-S reinforcement (BP), corrosion reinforced concrete beams with GFRP-S reinforcement (BPK), variations in reinforcement corrosion time for 2 weeks (BPK 2 ), 4 weeks (BPK 4 )and 6 weeks (BPK 6 ) by immersion method in 2.0% sulfuric acid solution. The beam is reinforced with GFRP-S in the Tensile region at the bottom of the beam. Flexural test with two point load. The results showed that reinforced concrete beams reinforced with GFRP-S had a larger capacity than normal beams by 12.70%. Reinforced concrete beams with reinforcement with a higher corrosion rate (6 weeks corrosion) tend to reduce the capacity of the beam but its capacity is still larger than normal beams by 1.38%.