Abstract
Reinforced concrete structure has very sensitive behaviour with the impact of seawater content. This work will describe about the effect of seawater content on the shear strength of reinforced concrete beams. Previous research focused on studying effect of seawater content on compression strength, tensile strength, flexure strength, and bond strength in concrete. A review of shear failures conducted by previous researchers without getting an effect on seawater content attacks. Reinforced concrete beam has measure on 1000×200×400 mm. Seawater content attack is given during the treatment process of reinforced concrete beams. Control testing is carry out by treating on fresh water. Stages of testing include testing the basic materials of concrete, immersion in sea water or fresh water, compression strength testing with cylindrical specimens on concrete age 28 and 90 days, as well as shear strength testing. Therefore, the aggressive nature of seawater which can cause micro crack in concrete pores, so that the shear strength that treated using sea water for 90 days has decreased by 10.70% from treatment using fresh water. The decrease in strength that occurs in the shear strength of reinforced concrete beams is not recommended in planning because it can risk to construction.
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