Danang Suryadi
Universitas Jember
Dwi Nurtanto
Universitas Jember
Erno Widayanto
Universitas Jember
Keywords: compaction, fresh concrete, compressive strength of concrete, vibration table.
ABSTRACT
The compaction method of concrete using a vibrating table uses vibration waves propagation from the base of manufacture and vibration vibrations into the mixed concrete. In this research, variations of frequency use are 40 Hz, 50 Hz, and 60 Hz, with a duration of 8 seconds and 12 seconds. The test objects have cube-shaped with each side measuring 15 centimeters. The mold of concrete is made from plywood boards containing 6 cubes. The concrete was tested using the Compressive Test Concrete tool to determine the compressive strength of the concretes. The research results show that the highest compressive strength is 60 Hz and 12 seconds, which is 32,44 MPa and the lowest compressive strength is 28,74 MPa.