Review Faktor - Faktor yang Mempengaruhi Karakteristik Kuat Tekan Beton Geopolimer

Panjaitan, Putrilyan Ezra; Herlina, Liana

doi:10.54367/jrkms.v3i2.858

Cited by 2 publications

(2 citation statements)

References 22 publications

(17 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dibandingkan dengan penelitian terdahulu hasil pengujian setting time (waktu ikat) beton geopolymer ini bertolak belakang dengan penelitian yang dilakukan Panjaitan & Herlina, 2020. Pada penelitian ini, diperoleh hasil semakin tinggi molaritas NaOH, maka waktu ikat semakin melambat, sedangkan (Panjaitan & Herlina, 2020) Berdasarkan hasil pengujian kuat tekan pada Tabel 8 dan Gambar 7 menujukkan kuat tekan beton geopolymer berbahan dasar limbah fly ash PLTU Lontar mengalami kenaikan setiap peningkatan nilai molaritas aktivator. Hasil tersebut menunjukkan bahwa tingkat molaritas aktivator (NaOH) mempengaruhi kuat tekan beton geopolymer, yakni semakin tinggi tingkat molaritas aktivator (NaOH) maka kuat tekan beton akan semakin tinggi.…”

Section: Rencana Campuran Beton (Mix Design)unclassified

Efek Molaritas Aktivator (NaOH) pada Beton Geopolymer dengan Bahan Pengikat Limbah Fly Ash PLTU Lontar

Bawono,

Muin

2024

Jurnal Penelitian dan Kajian Bidang Teknik Sipil

View full text Add to dashboard Cite

The average temperature of the earth's surface has increased by 0.74 ± 0.18°C over the past hundred years, caused by 65% carbon dioxide (CO2) emissions. Of the total CO2 emissions, around 6% come from the cement industry. Geopolymer concrete can be a solution to the problem because it does not use cement as a binder, but uses fly ash and activator materials. This activator material is to activate fly ash to become a binder. The aim of this study was to determine the effect of variations in the molarity of the NaOH activator on the workability, setting time, and compressive strength of geopolymer concrete. This study used fly ash from PLTU Lontar with a ratio of NaOH:NNa2SiO3 of 1:1.5, then the NaOH was varied with concentration levels of 5 Molar, 8 Molar, 11 Molar, and 14 Molar. From this research, it is known that the molarity level of the activator (NaOH) affects the workability (slump value), setting time, and compressive strength of concrete. The higher the molarity level of the activator (NaOH), the lower the workability of the concrete (the slump value decreases), the slower the setting time of the concrete, and the higher the compressive strength of the concrete. The most optimal variation is 14 Molar NaOH geopolymer with a slump value of 15 cm, initial setting time of 90 minutes, final setting time of 203 minutes, and compressive strength at 28 days of 54.60 MPa.

show abstract

Section: Rencana Campuran Beton (Mix Design)unclassified

Efek Molaritas Aktivator (NaOH) pada Beton Geopolymer dengan Bahan Pengikat Limbah Fly Ash PLTU Lontar

Bawono,

Muin

2024

Jurnal Penelitian dan Kajian Bidang Teknik Sipil

View full text Add to dashboard Cite

show abstract

“…Pelaksanaan Pembangunan Jembatan Waborobo -Batu Popi Kota Bau-Bau, merupakan pusat kegiatan pemerintahan, perekonomian, pendidikan maupun kebudayaan yang bertujuan untuk mempermudah akses transportasi antara kota Bau-Bau, Kabupaten Buton selatan dan Kabupaten Buton, serta untuk meningkatkan pelayanan distribusi barang dan jasa guna menunjang pertumbuhan ekonomi masyarakat (Sirait et al, 2023;Syara et al, 2023). Pelaksanaan proyek pada pekerjaan konstruksi khususnya pada bangunan jembatan merupakan sektor kegiatan yang diperhadapkan dari berbagai macam jenis risiko.…”

Section: Pendahuluanunclassified

Analisis Risiko Pelaksanaan Pembangunan Jembatan Waborobo - Batu Popi Kota Bau-Bau

Yoyo,

Ashad,

Watono

2023

Jurnal Kridatama Saintek

View full text Add to dashboard Cite

Risk management is a process carried out in order to respond to a risk that occurs or is likely to occur through a process of risk identification and analysis. The implementation of the construction of the Waborobo Bridge - Batu Popi, Bau-Bau City, experienced delays during its implementation. From the identification results, it was found that 35 risks occurred and the results of the risk level assessment using the Probability Impact Matris (PIM) method showed that there were 9 risk variables with dominant categories, namely: High rainfall intensity, high water discharge or flooding, changes in design and technical work due to adjustments. with field conditions, changes in work implementation schedules, poor access to the project site, difficulty accessing heavy equipment to the project site, damage to equipment or heavy equipment during work, delays in material delivery from suppliers and fatigue due to the large amount of work being done overtime. Risk mitigation carried out is planning the sequence of activities well in accordance with weather records, using pumps to remove stagnant water or mud from the project site, waiting for a decision from the owner regarding the design plan that will be used, rescheduling and intensively handling workers and work in progress. experiencing schedule changes, planning access or departure or mobility, looking for alternative tools or replacing with new tools, ordering materials before starting work, making material ordering schedules before starting work, providing optimal supervision, so that materials do not arrive late at the project location, providing additional vitamins for workers on site when doing overtime and increasing the number of working hours (overtime). Keywords: Risk Management, Development, Bridges

show abstract

Review Faktor - Faktor yang Mempengaruhi Karakteristik Kuat Tekan Beton Geopolimer

Cited by 2 publications

References 22 publications

Efek Molaritas Aktivator (NaOH) pada Beton Geopolymer dengan Bahan Pengikat Limbah Fly Ash PLTU Lontar

Efek Molaritas Aktivator (NaOH) pada Beton Geopolymer dengan Bahan Pengikat Limbah Fly Ash PLTU Lontar

Analisis Risiko Pelaksanaan Pembangunan Jembatan Waborobo - Batu Popi Kota Bau-Bau

Contact Info

Product

Resources

About