Article Per Year (5 Year)
p-Index From 2019 - 2024
0.444
P-Index
This Author published in this journals
All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Rekayasa Sipil
Septari, Dinda
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Studi Parametrik Mortar Geopolimer Hybrid Abu Sawit (Palm Oil Fuel Ash/POFA) Yanuari, Ramadhan; Ikrammullah, Muhammad; Septari, Dinda; Wijaya, Miguel Felix; Olivia, Monita
Rekayasa Sipil Vol 14, No 2 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.02.1

Abstract

In this study, the Palm Oil Fuel Ash (POFA) was used as a raw material for making geopolymer mortars that uses a combination of sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). The purpose of this study was to determine the effect of various parameters on the compressive strength of mortars. The parameters involved were namely modulus of activator ratio (Ms 1-3), the molarity of NaOH (10-16M), curing temperature (28-110ºC), type of POFA particle processing (oven-dried, passed the #200 sieve, burned in a brick kiln, burned at 800ºC), rest periods of 3 and 5 days. Based on the parametric study, it was found the optimum mixture with the highest compressive strength consisted of NaOH 14M, Ms ratio of 2.5, curing temperature of 100OC, a rest period of 5 days, particles sieved using #200 sieve and had 15% PCC content. 
Kekuatan Awal Stabilisasi Gambut Menggunakan Geopolimer Dengan Variasi Molaritas NaOH Septari, Dinda; Wibisono, Gunawan; Olivia, Monita
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 9 (2022): Edisi 1 Januari s/d Juni 2022
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Subgrade is very important in road construction. Peat have high organic matter with low bearing capacity, need to be stabilized before being used as a subgrade. Geopolymer’s made by mixing fly ash with alkali activator and regarded as an eco-friendly materials for soil stabilization and suitable for peat soil because its ability to resist in acid organic environment. In this research, NaOH and Na2SiO3 was selected as alkali activator. Using cement as additive in geopolymer can accelerate hardening process in room temperature. This research aims to find the optimum composition of the geopolymer hybrid for peat stabilization using the UCS (Unconfined Compressive Strength) test by varying the NaOH molarity. Variations of NaOH used in this research were 8M, 10M, and 12M with Na2SiO3/NaOH ratio of 1,5/1 and curing period of 7 and 14 days. Result of this research show that the highest compressive strength value is found in the variation of NaOH 8M aged 7 days with compressive strength of 24,24 kPa.Keywords: Peat, Stabilization, Geopolymer Hybrid, NaOH Molarity, UCS
Co-Authors Gunawan Wibisono Ikrammullah, Muhammad Monita Olivia Wijaya, Miguel Felix Yanuari, Ramadhan