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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Karajata Engineering
Sulfadli
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Materials Science & Nanotechnology Physics

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PENGARUH NILAI SLUMP PADA KUAT TEKAN BETON DENGAN CAMPURAN AIR PAYAU Sulfadli; Adnan
Jurnal Karajata Engineering Vol. 3 No. 2 (2023): 2023
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/karajata.v3i2.2717

Abstract

Concrete is a combination of constituent materials which consists of hydraulic cement (portland cement), coarse aggregate, fine aggregate, water, and additives. Generally, the use of concrete starts from the bottom construction to the top construction. In use in under construction, concrete will be in a variety of environments, one of which is an aggressive environment such as brackish water. This study aims to determine the ratio of the compressive strength of concrete and the split tensile strength of concrete in a mixture of brackish water and the concrete's compressive strength at various slump values (25–50 mm), 75–100 mm), 150–175 mm), and (> 175 mm). This research method uses an experimental research method at the Civil Engineering Laboratory, Faculty of Engineering, Muhammadiyah Parepare, in June–August 2022. The research results obtained show that the brackish water mixture in concrete results in a 10% decrease in the material's compressive strength compared to normal concrete and split tensile strength. The compressive strength of brackish water-mixed concrete with slump variation (75–100) is an average of 2.67 MPa, which is 10.68% of the normal concrete compressive strength value of 25 MPa. The compressive strength of brackish water mixed concrete with slump variation (75–100) is the result of the highest concrete compressive strength compared to other slump variations, and the compressive strength of brackish water mixed concrete with slump variation (> 175) is the lowest in concrete compressive strength results compared to other slump variations.
The Effect of Implementation of Independent Curriculum on Learning Interest and Character of Elementary School Students Sulfadli; Supartinah
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.4321

Abstract

The purpose of this study is to find facts that are compatible with the implementation of the independent curriculum on learning interest and also the character of elementary school students who have carried out the learning process by implementing the independent curriculum itself, this research uses the survey method with data collection techniques using observation and also questionnaires while for The population of this study is 10 teachers and 22 grade IV students. The analysis includes validity and reliability tests, normality tests, linearity tests and hypothesis tests with the research results showing a significant influence between the implementation of the independent curriculum on students' interest in learning and character values ​​with a sig value of 0.000 where <0.05, this shows that the implementation The independent curriculum has brought many changes and influences on elementary school students, including the interests and character of students. Therefore, teachers need to use more learning processes with independent curriculum designs in each class and schools can prepare facilities and infrastructure so that they can produce optimal learning processes so that they get the expected results in accordance with the goals of the school itself and improve the quality of existing education in Indonesia.
Co-Authors Adnan Supartinah