The Relationship of Temperature and Compressive Strength on Geopolymer Mortar using Fly Ash-Based

Bachtiar, Erniati; Marzuki, Ismail; Erdawaty,; Junaedy, M. F.; Ramadhan, F.; Setiawan, Asri Mulya; Rachim, Fatmawaty

doi:10.1088/1757-899x/885/1/012019

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…Geopolymer materials are composed of silica (Si) and alumina (Al) containing substances. As previously established, fly ash is a source of silica and alumina, that there are four dominant elements found in fly ash namely silica (SiO 2 ), aluminum (Al 2 O 3 ), ferum (Fe 2 O 3 ) and lime (CaO) [16] . The silica and alumina components found in fly ash are melted in an alkaline solution known as alkaline solution.…”

Section: Literature Reviewmentioning

confidence: 88%

Workability dan Sifat Mekanik Self Compacting Geopolimer Concrete (SCGC)

Aris

Bachtiar

Makbul

2021

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The purpose of this study was to investigate the relationship between molarity and workability in Self-Compacting Geopolymer Concrete (SCGC), as well as mechanical properties. Compressive strength and split tensile strength tests are used to characterize the mechanical characteristics in this research. Additionally, the study investigates the optimal molarity for self-compacting geopolymer concrete. Fly ash was used in lieu of cement in this research. On new concrete self-compacting geopolymer, workability is determined using the EFNARC standard, which includes the Slump Flow, V-Funnel, and L-Box tests. ASTM 39/C 39M-99 standard is used to determine the compressive strength of self-compacting concrete geopolymer. On new concrete, workability is determined using the EFNARC standard, which comprises the Slump Flow Test, a V-funnel, and an L-Box. The compressive strength of concrete samples is determined according to the ASTM 39/C 39M – 99 standard. The SNI 03-2491-2002 standard is used to determine the split tensile strength of concrete. At the ages of 7, 14, and 28 days, tests were conducted. The findings indicated that new concrete at 11M-13M satisfied the criteria for SCGC workability. The compressive and split tensile strengths of SCGC grow as the concrete ages. In self-compacting geopolymer concrete, the optimal molarity is 13 M.

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Section: Literature Reviewmentioning

confidence: 88%

Workability dan Sifat Mekanik Self Compacting Geopolimer Concrete (SCGC)

Aris

Bachtiar

Makbul

2021

civilla

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“…Pada penelitian sebelumnya telah melakukan uji X-ray fluorescence (XRF) pada fly ash PLTU PT. Bosowa Energi dan menunjukkan bahwa empat komposisi kimia fly ash tertinggi adalah silikat (SiO2), aluminium (Al2O3), besi (Fe2O3) dan kapur (CaO) (Bachtiar et al, 2018(Bachtiar et al, , 2020Bachtiar, 2021). Fly ash PLTU Energi Bosowa dan PLTU jeneponto merupakan jenis kelas C dengan kandungan CaO sebesar 23,52% ini berdasarkan ASTM C 618-96.…”

Section: Pendahuluanunclassified

Efek Curing Air Laut Terhadap Kuat Tekan Beton Mutu Tinggi Yang Menggunakan Fly Ash Sebagai Subtitusi Pasir

2022

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Fly ash waste accumulates from year to year at PLTU in South Sulawesi. The potential of fly ash as an environmentally friendly material to be used as a cement substitute is significant, either partially or entirely. This research aims to analyze the corelation between fly ash substitution as sand substitution and the compressive strength of high-strength concrete treated in seawater and freshwater. Researchers made samples of high-strength concrete with variations in the percentage of fly ash and variations in treatment. Variations in the percentage of fly ash as substitution of sand are 0%, 10%, 20%, and 30%, and variations in curing using fresh water and seawater. Sample treatment was carried out for up to 28 days, after which the compressive strength test according to the Indonesian National Standard (SNI) was carried out. The study results show that the relationship between fly ash substitution and a sand substitution on the compressive strength has a significant correlation. The higher the percentage of fly ash, the higher the compressive strength of the concrete, both fresh and seawater curing. Besides that, the compressive strength of high-strength concrete with freshwater curing treatment is greater than the seawater curing treatment.

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“…The increase in curing temperature within the range of 50 °C to 80 °C increases the compressive strength of GPC by 100 % compared to ambient temperature [ 28 ]. The compressive strength of geopolymer mortar (GPM) was significantly affected with an increase in NaOH concentration [ 29 , 30 ]. The amount of fly ash had a positive impact on the compressive strength of GPC due to the formation of dense microstructure [ 31 ].…”

Section: Introductionmentioning

confidence: 99%