| dc.description.abstract | Aggregate is one of the materials that make up concrete which functions
as a filler material for the concrete mixture. Fine aggregate is aggregate
with small grain sizes, less than 5 mm in size. Of course there are various
types of fine aggregate used. This difference in the type of fine aggregate
may affect the quality of the concrete. This research used fine aggregates
from the Gendol River, Progo River, and stone ash. The research test
object is cylindrical with a diameter of 15 cm and a height of 30 cm. The
tests in this research were concrete compressive strength, concrete split
tensile strength, and concrete modulus of elasticity. Concrete mix
planning is carried out based on SNI 2834-2000 with the planned
concrete quality of 25 MPa. This paper aims to provide information on
the effect of the type of fine aggregate on the compressive strength, split
tensile strength, and modulus of elasticity of concrete and can be used as
a reference in the selection of the type of fine aggregate for the needs of
the planned concrete mixture. The research results show that the type of
fine aggregate influences compressive strength, split tensile strength, and
modulus of elasticity. The research results show that concrete with fine
aggregate of the Sungai Gendol type produces the highest compressive
strength, split tensile strength, and theoretical modulus of elasticity with
values respectively 27.84 MPa, 2.62 MPa, and 25214.63 MPa. The Progo
River type has the highest tested modulus of elasticity with a value of
25576.41 MPa. This type of rock ash has the lowest compressive strength,
splitting tensile strength, test modulus of elasticity, and theoretical elastic
modulus with values respectively 23.36 MPa, 2.19 MPa, 21709.07 MPa,
and 22777.57 MPa. | en_US |
