Laos, Hardiana Clara Anggreini (2024) Pengaruh Laju Korosi Dan Tegangan Leleh Baja Tulangan Yang Terkorosi Terhadap Kuat Momen Lentur Balok Beton Bertulang. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

Reinforcing steel is one of the constituent materials of reinforced concrete that is susceptible to corrosion. Corrosion of reinforcing steel is often encountered and can have an effect in decreasing the durability of the structure. So this study was conducted to determine the effect of corrosion rate and melting stress on the strength of the bending moment in reinforced concrete.
Research in the form of testing the strength of the bending moment of reinforced concrete blocks, used test objects measuring 15 x 15 x 65 cm with a concrete quality of 21.9 Mpa. The variations of reinforcement used are 442.65 Mpa,
389.12 Mpa and 380.32 Mpa with each variation there are 3 test objects. To accelerate the occurrence of corrosion of reinforcement used 3.5% NaCl solution and galvanostatic method. The tests carried out are strong bending moments
carried out at a concrete age of 28 days based on ASTM C78 / C78M concerning standard test method for flexural strength of concrete (using simple beam with third-point loading) and corrosion rate testing based on ASTM G 31-72 concerning
standard practice for laboratory immersion corrosion testing of metals" with weight loss method.
The highest bending moment is 5.04 kNm and the lowest is 4.58 kNm. The largest corrosion rate value was valued at 111068.15 mpy on a reinforced concrete block with a melting stress of 380.32 mpa and the lowest value of 33047.32 mpy in
a reinforced concrete block with a melting stress of 442.65 mpa

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