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PRODUKTIVITAS TENAGA KERJA PADA PROYEK PEMBANGUNAN REVITALISASI DAN PENGEMBANGAN ASRAMA HAJI WAIHERU AMBON Talaohu, Tomabuji; Sahusilawane, Tonny; Abdin, Maslan
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1679

Abstract

The revitalization and construction of the Waiheru Ambon hajj dormitory building, the method used in this research is the validation test, reliability test, f test and t test using the SPSS V16 tool where in this method the questionnaire data will be obtained which will then be analyzed with the SPSS V16 tool. The research results were obtained based on the results of data analysis that has been carried out to solve the problem in this research where when conducting research on project implementation such as column casting work, it is often found that the workforce is not effective and efficient when pressing the vibrator so that when dismantling the formwork you can see many columns. which is corroded, then obtained: 1) The positive influence between competence on labor productivity can be seen from the t-count of  5.149 > t-table 1.724 and sig value = 0.000 < 0.05 which means that competence is very influential in influencing labor productivity. 2) The positive effect between skills on labor productivity can be seen from the t-count of 3.732 > t table 1.724 and sig value = 0.001 < 0.05 which means that skills is very influential in influencing labor productivity. 3) The positive effect of work discipline on labor productivity can be seen from the t-count of 11.992 > t-table 1.724 and sig value = 0.000 < 0.05 which means that work discipline is very influential in influencing labor productivity. 4) The positive influence between the level of income on labor productivity can be seen from the t-count 3.968 > t-table 1.724 and sig value = 0.001 < 0.05 which means that the level of income is very influential in influencing labor productivity. 
PENGARUH PENGGUNAAN SERBUK KACA SEBAGAI BAHAN PENGGANTI SEBAGIAN AGREGAT HALUS TERHADAP KUAT TEKAN BETON Ode, Titin; Sahusilawane, Tonny; Marantika , Meyke
Journal Agregate Vol. 3 No. 1 (2024): Maret
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v3i1.1981

Abstract

Some of this bottle waste is directly disposed of into open land without any treatment. One alternative use for beer glass bottle waste is to make it a substitute for fine aggregate in concrete mixture, by processing it into pounded glass powder until it smoothly passes filter no. 12. The addition of glass powder by 0%, 2.5% and 5%. The concrete test specimen measures 15×15×15 cm and is planned according to the SNI method 03-2834- 2000. The test parameters carried out are in the form of a slump test and concrete compressive strength with a compressive strength standard of 200 Kg / cm² at a concrete age of 7 days. The results obtained in this study were the compressive strength of concrete the percentage of using 0% glass powder of 264.29 kg / cm2, 2.5% of 252.26 kg / cm2, and 5% of 192.80 kg / cm2. Slump test values percentage 0% 8 cm, 2.5% 8.8 cm and 5% 10.8 cm. So it can be concluded that the use of glass powder as a substitute for some fine aggregate against concrete compressive strength affects the quality of concrete compressive strength with a variation of 2.5% can increase the compressive strength of concrete greater than normal concrete. However, the more glass powder, the lower the compressive strength of the concrete obtained. While the use of glass powder as a substitute for some fine aggregates affects the value of the slump test, the more the percentage of the use of glass powder in the concrete mixture, the higher the slump value.
PENGARUH PENAMBAHAN PUTIH TELUR TERHADAP KUAT TEKAN BETON Tarantein, Debora; Sahusilawane, Tonny; Apalem, Delvia Rimesye
Journal Agregate Vol. 3 No. 1 (2024): Maret
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v3i1.2050

Abstract

The use of concrete as a building material has long been known in Indonesia. Basically, concrete is defined as a mixture of other hydraulic cement, fine aggregate, coarse aggregate and water with or without additional ingredients (admixture) which form a solid mass. Historically, egg white itself has been used as a mixture in concrete. Egg white contains calcium carbonate (CaCO3), magnesium oxide (Mg), iron oxide (Fe2O3) and phosphorus pentoxide (P2O5), which are also contained in cement. Egg white will be an added ingredient in the concrete mixture in this test with a percentage of added material used of 0%, 2% and 2.3% of the cement weight. The concrete test object is made in the form of a cube with dimensions of 15×15×15 cm and is made according to the SNI 03-2834-2000 method. The parameters to be tested are the slump test and the compressive strength of the concrete with a standard compressive strength of 200 Kg/cm² at a concrete age of 7 days. The results obtained in this research were that the compressive strength of concrete with 0% egg white added was 223.7 kg/cm2, 2% was 181,8 kg/cm2, and 2.3% was 221,1 kg/cm2. The slump test percentage values ​​are 0% = 9 cm, 2% = 10.8 cm and 2.3% = 8 cm. So it can be concluded that the use of egg white as an added material has an effect on compressive strength, because the more egg white added material in the concrete, the stronger the compressive strength of the concrete and the resulting slump test. It can be seen from the use of 2% added material which produces a compressive strength of 181,8 kg/cm2 and 2.3% yields 221,1 kg/cm2.