Abstract-Structures built in aggressive environments such as in the sea/marine environment need to be carefully designed, due to possibility of chloride ion penetration into the concrete. One way to reduce the strength degradation in such environment is to use FRP, which is attached to the surface of R/C using epoxy. The study presented is focused on determining the effect of the sea water to the capacity of GFRP as flexural reinforcement elements. Beams of 10×10×40 cm dimension were designed without reinforcing bars. The samples were tested using variation to the distance to the sea and duration of the contact to the sea.The result showed that the use GFRP increased the flexural strength 84,21%, compared to the normal beam, without GFRP. It can also be seen that the closer the distance to the sea, the higher the strength degradation of the beam. The sample rinsed in the water has strength 2.13 kN after 9 months, while sample put at a distance 1 km from the seam has strength 2.53 kN. The result of this study also showed that for areas closer to the sea has a greater effect in terms decreasing flexural capacity of the beam
IndexTerms-Flexural strength, GFRP, marine environment.
Abstract-An experimental study has been carried out to investigate the structural behavior of beam which was strengthened by glass fiber reinforced polymer (GFRP-S). The Experimental was carried out to determine the effect of fatigue loads on flexural capacity of reinforced concrete beams. Each specimen was 6 m long with 300x500 mm rectangular cross section. Each specimen was treated with different loads. In this study using two different loads applied to the beam was static loads and fatigue loads.
The losses incurred due soils ekspansivity primarily on lightweight structures are staggering. Erecting moisture barrier at the road side is a combination of providing a positive treatment and construction structures necessary to control water content change in the soil layer. This study aims to determine behavior of suction, moisture barrier effects on suction head reduction, and the laboratory experimental model of suction head profile. The test model was made to resemble half of the road width with a load of 30 kPa on it, and install a concrete wall moisture barrier at road side with a depth variation of 20cm, 35cm and 50cm. Observation of time and water infiltration carried out on 8 observatories, also the amount of swelling through a dial that is placed above the concrete slab load. The results showed an increase in capillary water in front bulkhead for all variations of moisture barrier depth and water height reduction occurred in the rear bulkhead respectively 3.25%, 21.25% and 45% for the ratio of bulkhead height and expansive soil thickness h/H = 0.44, h/H = 0.78 and h/H = 1.11. Also reduction of swelling respectively by 4.46%, 52.69% and 82.53% for each ratio h/H.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.