| dc.description.abstract | Indonesia's rapid development necessitates innovation, engineering, and
technological advancements, particularly in concrete construction. The
demand for concrete needs is increasing because it has advantages in
terms of compressive strength, high-temperature resistance, and
maintenance, which tends to be cheaper when compared to other
materials. This encourages innovation in alternative materials with
almost the same characteristics as concrete. One alternative mixture
material in making concrete is iron sand. Iron Sand has a finer size; it
can fill empty cavities in concrete.This study uses SNI 03-2834-2000 as a
reference in planning the mixture with a planned compressive strength of
25 MPa with iron sand as a fine aggregates mixture with variations of
0%, 80%, 82%, 84%, 86%, 88%, 90%. This study aims to determine the
effect of iron sand on the testing of compressive strength and tensile
strength of concrete with cylindrical test pieces. The results showed that
the compressive strength value of concrete tended to increase with the
highest value of 31.915 MPa, an increase of 19.867% compared to
normal concrete. After reaching the maximum value in the 82% iron sand
variation, the compressive strength of concrete tends to decrease, the
lowest in the 90% variation of 25,630 MPa decreases by 3,736%
compared to normal concrete. In the tensile strength test, the tensile
strength value of concrete tends to decrease with the lowest value at a
variation of 90% of 1.502 MPa, decreasing by 44.938% compared to
normal concrete. It's show that iron sand can improve the quality of
concrete. | en_US |
