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PENINGKATAN MINAT DAN HASIL BELAJAR PRAKTIK KERJA BATU DAN BETON DENGAN PENERAPAN PROBLEM-BASED LEARNING Syafiatun Siregar; Harun sitompul; Kinanti Wijaya; Ahmad Andi Solahuddin; Sutrisno .
Educational Building Jurnal Pendidikan Teknik Bangunan dan Sipil Vol 5, No 1JUNI (2019): EDUCATIONAL BUILDING
Publisher : Jurusan Pendidikan Teknik Bangunan Fakultas Teknik Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.149 KB) | DOI: 10.24114/ebjptbs.v5i1JUNI.14511

Abstract

Penelitian peningkatan hasil belajar dan minat belajar dengan menerapkan Problemp Based Learning (PBL) pada mata kuliah Praktik Kerja Batu dan Beton terhadap mahasiswa Program Studi Pendidikan Teknik Bangunan (Prodi PTB). Penelitian merupakan penelitian eksperimen dengan populasi dalam penelitian ini adalah seluruh mahasiswa yang mengambil mata kuliah Praktik Kerja Batu dan Beton Prodi PTB Jurusan PTB Fakultas Teknik Unimed. Pengambilan sampel dilakukan dengan menggunakan teknik total sampling, dimana keseluruhan populasi dijadikan sampel. Instrumen penelitian yang digunakan untuk mengumpulkan data adalah objektif tes, melakukan pretes serta postes. Analisis data dilakukan dengan menggunakan software SPSS 23 untuk menganalisis validitas, reabilitas, tingkat kesukaran, daya beda, uji normalitas, uni homogenitas dan uji crosstab. Hasil analisis data dengan perlakuan menunjukkan bahwa kelas yang diajarkan dengan model PBL memperoleh nilai rata-rata sebesar 84,93. Sedangkan kelas yang diajarkan dengan model konvensional memperoleh nilai rata-rata  sebesar 72,60 Uji statistik nilai hasil belajar Praktik Kerja Batu Dan Beton mahasiswa sebelum diajarkan dengan PBL dilakukan dengan Kolmogorov-Smirnov menyatakan bahwa berdistribusi normal dan homogen. Hipotesisnya dapat diterima yaitu terdapat peningkatan hasil belajar dan minat belajar dengan menggunakan PBL. Kata Kunci: Hasil Belajar, Konvensional, Minat Belajar, Problem Based Learning (PBL)  ABSTRACTThis research was an increase in learning outcomes and interest in learning by implementing Problem-Based Learning (PBL) in the Stone and Concrete Work Practice courses for students of Building Engineering Education Study Program (PTB Study Program). The study was an experimental study with the population in this study were all students who took the Rock and Concrete Work Practice Study Program of PTB Department of PTB Faculty of Engineering Unimed. Sampling is done using total sampling techniques, where the entire population is sampled. The research instrument used to collect data was objective tests, pre-tests, and post-tests. Data analysis was performed using SPSS 23 software to analyze validity, reliability, difficulty levels, different power, normality tests, homogeneity units, and crosstab tests. The results of the analysis of the data with the treatment showed that the class taught with the PBL model obtained an average value of 84.93. While the class taught with the conventional model obtained an average value of 72.60. The statistical test of the learning outcomes of the Stone and Concrete Work Practices of students before being taught with PBL was conducted with Kolmogorov-Smirnov stating that the distribution was normal and homogeneous. The hypothesis was accepted that there is an increase in learning outcomes and interest in learning by using PBL.Keywords: Learning Outcomes, Conventional, Interest In Learning,Problem Based Learning (PBL)
Perilaku Hambatan Panas pada Papan Partisi diperkuat Serat Tandan Kosong Kelapa Sawit Banu Nursanni; Batumahadi Siregar; Sutrisno .; Kinanti Wijaya
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.14438

Abstract

The goal of this research was to determine the heat resistance behavior of polymer composite fiber boards with oil palm empty fruit bunches (OPEFB) fillers as influenced by mass density and water absorption, with the hope that partition boards with OPEFB fiber fillers could reduce the heat entering the room from outside vines through directly exposed walls. The partition board under discussion is a heat insulator with a thermal conductivity test impacted by the mass density of the composite. The test method used is ASTM-C-177-2013, which consists of measuring heat propagation by modifying a 40-watt heat source and testing specimens from polymer composite partition boards formed based on standards obtained from partition forming boards with a matrix of polyester resin SHCP 2667 WNC fraction weight with a fiber weight ratio of 25 wt.%, 30 wt.%, and 35 wt.% randomly arranged (chopped strand mat/CSM). The highest thermal conductivity value was observed in a 25 wt.% fiber weight ratio of 0.141 W/m.oC at a void percentage of 7.65% for a 5 minutes test time; 0.146 W/m.oC for a 10 minutes test time; 0.151 W/m.oC for 15 minutes test time at a mass density of 1.16 gr/cm. While the 35 wt.% fiber weight ratio has the lowest thermal conductivity value of 0.137 W/m.oC at a void percentage of 4.24% for a 5 minutes test time; 0.142 W/m.oC for a 10 minutes test time; and 0.147 W/m.oC for a 15 minutes test time at a mass density of 1.24 gr/cm3 and a water absorption capacity of 3.75%. According to the investigation’s findings, the higher the water absorption capacity, the higher the thermal conductivity of the partition board, and the higher the mass density, the lower the thermal conductivity. As a result, the lower the value of the thermal conductivity of the partition board, the better the insulating properties.