Effect of Surian Wood Powder Addition as Fine Aggregate on the Compressive Strength of K-250 Concrete

This thesis is titled "The Effect of Adding Surian Wood Powder as Fine Aggregate on the Compressive Strength of K-250 Concrete." This paper was written because the author wanted to study how concrete made with surian wood powder affects the compressive strength of concrete. The high density of concrete can also affect the size or dimensions of concrete structures, leading to high construction costs. From this, the following problems arise that need to be analyzed: How does the addition of Surian wood powder as fine aggregate affect t h e quality of concrete?

The method applied in this study is the experimental method. The results of the study indicate that the addition of Surian wood powder as aggregate has varying effects on concrete quality depending on the amount of mixture in the mortar. A mixture of 5% Surian wood powder with a compressive strength of 301.08 MPa achieved the highest compressive strength. If more Surian wood powder is added, the average compressive strength of the concrete decreases. These test results indicate that Surian wood powder should not be used in excessive amounts, as the appropriate mixture composition must be used.