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Pengaruh Penambahan Superplasticizer SR 300 Terhadap Kuat Tekan Beton fc’ 26,4 MPa Asrullah, Asrullah; Anggrainy, Rita; Ismail, Ayu; Suciati, Indah
Jurnal Teknik Sipil Vol 14 No 2 (2024): Jurnal Teknik Sipil
Publisher : Civil Engineering Study Program Faculty of Engineering, University of Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36546/tekniksipil.v14i2.1479

Abstract

The world of construction is currently experiencing very rapid development. This can be seen from various countries that are competing to improve the quality and quantity of their buildings. Indonesia is one of the developing countries that is increasing infrastructure development with the aim of supporting services to the community. The purpose of this study was to determine the effect of the addition of Superplasticizer SR 300. The purpose of this study is to determine the effect of the addition of Superplasticizer SR 300 on the compressive strength of concrete fc' 26.4 MPa, the method used in the compressive strength test is SNI 03-2834-2000. The results of this study can be concluded as follows; Standard concrete compressive strength (BS) of 26.59 Mpa, the largest concrete compressive strength value with the addition of SR 300 by 1.5% (SR300-1) aged 28 days of 28.02 MPa, a simple regression model with the equation Y = -1.822x + 29.275, and the coefficient of determination R2 bernilain 0.6919, the addition of SR 300 influences the value of concrete compressive strength and specific gravity of concrete aged 28 days categorized as normal concrete.
PENGARUH SOCIAL INFLUENCE, SERVICE QUALITY DAN BRAND IMAGE TERHADAP KEPUTUSAN PEMBELIAN IPHONE DI BANUA STORE PALU Kamal, Kamal; Marjun, Marjun; Umar A, Muhammad; Badjamal, Faigah A; I Pasigi, Eva Warta; Asrullah, Asrullah
Jurnal Ekonomi Trend Vol 12 No 1 (2024)
Publisher : Fakultas Ekonomi Universitas Alkhairaat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/trend.v12i1.387

Abstract

Penelitian ini mengungkapkan Pengaruh Social Influence, Service Quality Dan Brand Image Terhadap Keputusan Pembelian Iphone Di Banua Store Palu. Tujuan yang ingin dicapai dalam penelitian ini untuk mengetahui Pengaruh Social Influence, Service Quality Dan Brand Image Terhadap Keputusan Pembelian Iphone Di Banua Store Palu. Metode yang digunakan Peneliti verifikatif dengan alat bantu kuesioner terhadap 70 responden. Hasil penelitian ini membuktikan bahwa Multiple atau koefisien korelasi (R) adalah hubungan antara ketiga variabel bebas Social Influence, Service Quality Dan Brand Image Terhadap Keputusan Pembelian Iphone Di Banua Store Palu sebesar 0,697 artinya hubungan variabel bebas (independent) tehadap variabel terikat (dependent) adalah kuat. R square atau koefisien determinasi (R2) adalah melihat pengaruh antara variabel Social Influence, Service Quality Dan Brand Image Terhadap Keputusan Pembelian Iphone Di Banua Store Palu sebesar 0,486 atau 48,6% artinya pengaruh variabel bebas (independent) tehadap variabel terikat (dependent) sebesar 48,6% sedangkan sisanya 51,4% adalah pengaruh variabel lain yang tidak diteliti dalam penelitian ini. Kata Kunci : Social Influence, Service Quality, Brand Image dan Keputusan Pembelian
PERBEDAAN JUMLAH IKAT BIBIT TERHADAP PERTUMBUHAN RUMPUT LAUT (Kappaphycus alvarezii) MENGGUNAKAN METODE LONG LINE PANTAI AMAL KOTA TARAKAN Cahyadi, Jimmy; Ihsan, Burhanuddin; Asrullah, Asrullah
Jurnal Borneo Saintek Vol 6, No 1 (2023): Jurnal Borneo Saintek
Publisher : Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/borneo_saintek.v6i1.4202

Abstract

Seaweed is one of the fisheries commodities that is widely cultivated in Indonesia. The cultivation of seaweed (Kappaphycus alvarezii) in the Coastal Waters of Amal Baru, Tarakan City, is traditionally done using the longline method. The gillnet method is the most used method by seaweed farmers because it is flexible in choosing locations and relatively inexpensive. The research aims to determine the difference in the number of seaweed seedlings on the absolute and specific growth rates. This study used a Completely Randomized Design (CRD) with 4 treatments and 3 replications. Treatment P1 (1 bundle), P2 (2 bundles), P3 (3 bundles), and P4 (4 bundles). The results showed that the growth of seaweed seedlings with different numbers of bundles influenced absolute and specific growth rates. The best treatment was found in treatment P4 with an average absolute growth rate of 80.00% and an average specific growth rate of 100%.
Characteristics the Marshall Test Subsitutution of Polypropylene Plastic Pellets as Filler in Mixture Asphalt Concrete Binder Course (AC BC) Mulyadi, Asri; Asrullah, Asrullah; Anggrainy, Rita; Irawan, Irawan; Rizal, Choirul
International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Vol 5 No 2 (2023)
Publisher : The Islamic Education and Multiculturalism Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47006/ijierm.v5i2.234

Abstract

This research was carried out on a laboratory experimental scale, with the aim of determining the characteristics of the Marshall test for the substitution of Polypropylene plastic pellets in the Asphalt Concrete Binder Course (AC BC) mixture. The substitution of Polypropylene plastic pellets in AC BC mixture is 1%, 2%, 3% of the weight of filler in AC BC standard mixture. From the test results, it can be concluded that the characteristics of the marshall test include VMA values, VIM values, VFA values, stability values, flow values, MQ values that meet the predetermined requirements both without filler and with filler.
Penerapan Model Problem Based Learning (PBL) Materi Perubahan Bentuk Energi Untuk Meningkatkan Motivasi Belajar Peserta Didik Kelas IV UPTD SD Negeri 64 Parepare Israwaty, Ila; Usman, Usman; Asrullah, Asrullah
JPPSD: Jurnal Pendidikan dan Pembelajaran Sekolah Dasar Vol 5, No 2 (2025): Oktober
Publisher : Universtas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jppsd.v5i2.77538

Abstract

The problem in this study is the low learning motivation of students in the subject of science. This study aims to determine the process and results of the application of the Problem Based Learning (PBL) learning model to improve the learning motivation of fourth-grade students of UPTD SD Negeri 64 Parepare. This study uses a qualitative approach with the classroom action research (CAR) method. Data collection techniques used are observation, questionnaires and documentation, with research subjects consisting of 1 teacher and 16 students. This study was conducted in two cycles, each cycle consisting of two meetings covering planning, implementation, observation, and reflection. The results of the study showed that in cycle I, the learning process was in the sufficient qualification (C) and the learning motivation of students was in the sufficient learning motivation category. In cycle II, the results of the study on the learning process were in the good qualification (B) and the learning motivation of students reached the high learning motivation category. The conclusion in this study is that the application of the Problem Based Learning (PBL) learning model can improve the learning motivation of students in the learning of fourth-grade science at UPTD SD Negeri 64 Parepare.
The Impact of Rubber and Dumbble Training on Improving The Gyaku Tsuki Ability of Inkanas Karate Athletes, North Luwu Kartini, Kartini; Asrullah, Asrullah; Hakim, Hikmad; Arfanda, Poppy Elisano
COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga Vol 16, No 3 (2024): October
Publisher : UNIVERSITAS NEGERI MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/cjpko.v16i3.66704

Abstract

This study aims to analyze the impact of rubber and dumbbell training on improving gyaku tsuki ability in Inkanas Luwu Utara karate athletes. Gyaku tsuki is an important basic technique that requires strength, speed, and technique. The research method used was an experiment with two groups of athletes. The first group (Group Rubber) underwent training using rubber, while the second group (Group Dumbbell) used dumbbells. The study was conducted for 16 meetings with measurements of gyaku tsuki performance before and after the training program. The results showed that both training methods improved gyaku tsuki ability, but the group using rubber showed a more significant increase. These findings provide insight for coaches and athletes in designing more effective training programs.