ABSTRACT
In the construction industry, steel reinforced concrete is a construction material which
commonly used in building structures that the concrete compressive strength and tensile
strength of the steel is a complimentary combination and easy made. However, the use
ofsteel as reinforcement still poses some constraints. The constraints are the rising price
of steel and it is categorized as nonrenewable mining products and someday will
definitely run out. Therefore, bamboo was used as an alternative to steel because the
price is cheap and it is a renewable resource. One of the requirements in reinforced
concrete structures is the presence of coherency between reinforcement and concrete, so
when the concrete structure was loaded not caused slippage between reinforcement and
concrete. Because of that, it is necessary to research the bond strength of plain bamboo
reinforcement in normal concrete.
The method in this study is an experimental laboratory. Test specimen is cylinder
concrete which its diameter and high was 15 cm and 30 cm. in the middle of test
specimen was buried a reinforcementwith 25 cm of depth. The reinforcements was plain
steel with 8 mm of its diameter and plain Ori, Petung, Wulung bamboo with 10x5.2 mm
of its dimension. This test is performed in the Machine Laboratory, Faculty of
Engineering of SebelasMaret University (UNS), on the concentrate age of 28 days using
Universal Testing Machine (UTM).
Based on the analysis and test result, the average adhesive strength of plain bamboo
reinforcement of Petung was 0,051 MPa while the average adhesive plain steel
reinforcement Ø 8 mm was 0,548MPa.
Keyword: adhesive strength, plain steel, Petung bamboo, normal concrete