<![CDATA[PT. Sinar Bali Binakarya is one of the concrete producing companies. As a manufacturer, of course you have to highlight one of the advantages of your product, especially advantages in terms of improving quality. However, the number of defects found in December-March 2022 was 158. The results showed that there were defects in U-ditch concrete, but the researchers took several defects in U-ditch concrete that were dominant, namely in February 2022. By applying the fault tree method analysis (FTA). This method uses the concept of thinking that encourages reducing defects by finding and analyzing the root causes of existing problems so that preventive solutions can be found. Researchers have made an effort to improve. Due to limited time and permission from those concerned, the application of this method and proposed improvements cannot be carried out in its entirety. The results of the repairs carried out show that the defects in the U-ditch concrete have decreased in quality. To reduce defects in U-ditch concrete with repairs carried out are as follows: less fine aggregate, excess cement, additives not added, and excess water.]]>
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