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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains EQIEN - JURNAL EKONOMI DAN BISNIS
Muhammad Zaqi
Unknown Affiliation
Decision Sciences, Operations Research & Management Engineering

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Pengaruh Rasio Solid Liquid Dan Penambahan Graphene Nanosheets Terhadap Kuat Tekan Mortar Geopolimer Berbasis Palm Oil Fuel Ash (POFA) Dan-Flyash Batu Bara Muhammad Zaqi; Amun Amri; Desi Heltina
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Geopolymer mortar is a material that has high SiO2 and Al2O3 content and has the potential to be used as a base for making geopolymer mortar. This study aims to make geopolymerbased mortar (POFA) and coal flyash with the addition of graphene, and variations in the addition of graphene to the mechanical and morphological properties of the geopolymer mortar. The preparation of the geopolymer mortar includes several steps, namely the preparation and mixing of materials with various solid liquid ratios of 72:28, 60:40, and 80:20, then proceed with the preparation of an activator alkaline solution (10 M NaOH + Sodium silicate) and the addition of graphene with variations of 0%, 1% wt, 2% wt, and 3% wt. The results of the morphological analysis showed that the increased cavity that was formed increased along with the increase in the amount of graphene added. While the results of the compressive strength test showed that the highest compressive strength was obtained at 19,2 Mpa at a solid liquid ratio of 60:40 and the lowest compressive strength was obtained at 12,8 Mpa at a solid liquid ratio of 80:20. Keywords : geopolymer mortar, coal fly ash, graphene, POFA
INFLUENCE OF BRAND IMAGE AND THE QUALITY OF SERVICE TO THE DECISION TO STAY AT REDDORZ PONDOK LABU Muhammad Zaqi; Gagih Pradini
Eqien - Jurnal Ekonomi dan Bisnis Vol 11 No 03 (2022): EQIEN- JURNAL EKONOMI DAN BISNIS
Publisher : Sekolah Tinggi Ilmu Ekonomi DR KH EZ Mutaqien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34308/eqien.v11i03.1127

Abstract

This study was conducted on purpose to help examining and analyzing the Brand Image and Quality of Service affect the Decision to Stay at Reddorz Pondok Labu. To find out and analyze the quality of brand image and service like what is dominant to influence the decision to stay at Reddorz Pondok Labu. The study was conducted at Reddorz Pondok Labu. The results indicated that brand image and also service quality gives such a positive and also significant influence toward the decision to stay at Reddorz Pondok Labu. This means that the decision to stay is determined by the brand image and quality of service of a hotel or guesthouse that provides comfort to every consumer. Sampling technique used is purposive sampling techniques. The data were collected using the souce of primary data by givig set of questionnaires to 99 respondents. The analysis applied is testing techniques that exist in SPSS 23. The study results proved that the variables of Brand Image and Service Quality, together produce data that affect the Decision to Stay at Reddorz Pondok Labu.
Co-Authors Amun Amri Desi Heltina Gagih Pradini