Material Ramah Lingkungan 'Mortar Geopolimer - Fly Ash'

2019

Geopolymer mortar is a mortar with the main binder as a waste material containing silica and alumina compounds using an alkaline solution as a polymerization activator. This study aims to determine the compressive strength of fly ash-based geopolymer mortar class C with the morality of 12M (MG12) and 16M NaOH solution (MG16), the ratio of Na2SiO3 to NaOH is 1, the ratio of binder to natural sand is 1: 3, the ratio of water to fly ash is 0.4 and the flow value (110 ± 5)%. The results showed that the compressive strength of conventional mortar (MK) with a composition of 1: 3 has a compressive strength of 12.47 MPa. This result is higher than the compressive strength values of geopolymer MG12 and MG16 with compressive strength values of 3.9 MPa and 3.27 MPa, respectively. Thus, it can be concluded that conventional mortars include type S mortars and geopolymer mortars including type O mortars based on SNI 03-6882-2002.

2019

Geopolymer mortar is a mortar with the main binder as a waste material containing silica and alumina compounds using an alkaline solution as a polymerization activator. This study aims to determine the compressive strength of fly ash-based geopolymer mortar class C with the morality of 12M and 16M NaOH solution, the ratio of Na2SiO3 to NaOH is 1, the ratio of binder to natural sand and slag sandis 1: 1.5:1.5 and the flow value (110 ± 5)%. This result is higher than the compressive strength values of geopolymer GPS-NaOH 12M and GPS-NaOH 16M with compressive strength values of 6.01 MPa and 4.86 MPa, respectively. Thus, it can be concluded that conventional mortars include type S mortars and GPS-NaOH 12M geopolymer mortars including type N mortars and GPS-NaOH 16M geopolymer mortars including type O mortars based on SNI 03-6882-2002.

Jurnal Sains dan Pendidikan Fisika, 2019

Penelitian ini bertujuan untuk menyelidiki sifat beton geopolimer berpori yang ditinjau dari porositas, permeabilitas air dan kuat tekan beton mampu diaplikasikan pada kontruksi bahu jalan. Beton geopolimer berpori disintesis dengan metode aktivasi alkali menggunakan bahan dasar fly ash dan ditambahkan agregat kasar kerikil kecil yang dimanipulasi dengan perbandingan tertentu yaitu 30%, 45% dan 60% dari massa fly ash, serta ditambahkan agregat halus bubuk aluminium sebagai pembentuk pori pada beton geopolimer. Pasta geopolimer dicetak dengan ukuran bata beton tipe R (tipe persegi panjang) kemudian di-curing pada suhu 70oC selama 4 jam. Dilakukan pengujian porositas, permeabilitas air, dan kuat tekan setelah sampel berumur 28 hari. Beton dengan agregat kerikil 30%, 45% dan 60% secara berurutan memiliki persentase porositas sebesar 18,87%, 18,16% dan 17,82%, nilai koefisien permeabilitas yaitu sebesar 10,3 x 10-4 cm/det, 8,4 x 10-4 cm/det dan 8,1 x 10-4 cm/det dan memiliki kuat tekan ...

2021

KARAKTERISTIK MORTAR GEOPOLIMER BERBAHAN DASAR FLY ASH DAN BOTTOM AS

2019

Pembangunan infrastruktur terus dilakukan untuk percepatan pembangunan dalam mengejar ketinggalan dan meningkatkan daya saing nasional. Pelaksanaan pembangunan harus ramah lingkungan agar tidak menimbulkan dampak negatif sehingga pembangunan berkelanjutan dapat terwujud. Beton geopolimer merupakan teknologi beton yang ramah lingkungan dimana bahan dasar dari beton tersebut bukan menggunakan semen, melainkan sisa pembakaran batu bara, yaitu abu terbang (fly ash), sehingga sisa pembakaran batu bara dapat dimanfaatkan karena fly ash yang tidak dimanfaatkan dapat menyebabkan pencemaran lingkungan. Metode yang digunakan dalam pengujian beton polimer ini menggunakan acuan SNI terhadap beberapa pengujian diantaranya pengujian agregat, pengujian kuat tekan beton normal K225 dan beton geopolimer dengan campuran larutan alkali berupa natrium silikat (Na2SiO3) dan natrium hidroksida (NaOH), dalam perbandingan 1:1; 3:1; 5:1 pada umur 7, 14, dan 28 hari. Dari hasil pengujian kuat tekan beton d...

Seminar Nasional Hasil Penelitian & Pengabdian Kepada Masyarakat (SNP2M), 2020

Geopolymer mortar is a mortar with the main binder as a waste material containing silica and alumina compounds using an alkaline solution as a polymerization activator. This study aims to determine the compressive strength of fly ash-based geopolymer mortar class C with the morality of 8M, 12M and 16M NaOH solution, the ratio of Na2SiO3 to NaOH is 1.5, the ratio of binder to natural sand and slag sand is 1: 1.5:1.5 and the flow value (110 ± 5)%. The results showed that the compressive strength of geopolymer mortar MG16 produced higher compressive strength at age of 7, 14 and 28 days than the compressive strength of conventional mortar MK. Meanwhile, the MG8 and MG12 geopolymer mortar produced lower compressive strength than MK mortar.

2018

Fly ash is one of the residues produced from burning coal which consists of fine particles. Fly ash, also known as fly ash, is one of the industrial wastes from the PLTU in South Sulawesi which is rich in silica and aluminum which can be used as a sturdy binder through the polymerization process. South Sulawesi Province itself has several coal-fired power plants. PLTU annually produces a lot of fly ash or fly ash waste. The waste produced by the PLTU raises the problem that arises is how to use the garbage so as not to pollute the environment and can be used mainly in the construction world. Because of these problems, it is necessary to research the potential waste of PLTU coal-fired fly ash in South Sulawesi as a base material for geopolymer mortar. The research method used is the experimental method in the laboratory. The method in making and testing mortar samples refers to SNI 03-6825-2002. The composition of aggregate has a ratio of fly ash: sand of 1: 2.75, and the composition...

2023

Geopolymer concrete uses pozzolanic materials such us fly ash to replace the role of cement. This study aims to design a geopolymer concrete mixture to obtain a compressive strength value based on the age or variation of the concrete mix and identify the effect of variations in alkaline activator solution on the compressive strength of geopolymer concrete. Fly ash which reacts with alkaline activator liquid in a ratio of 50:50, funcitions as a binder, where the alkaline activator used in this study is Na2Si03, and NaOH concentration of 10M with the test variable used is variation one at a

2020

The material of sidoarjo mud is generated from the volcano eruption of drilling gas in Porong, Sidoarjo, East Java, Indonesia. The material of sidoarjo mud was known as the cementitious material that was rich in content of Si and Al. Some studied were investigated to treat the material of sidoarjo mud by the calcination with high temperature. Yet, this investigation caused the consumption of energy, production time and increased production cost. The issue was a concern in this study so that did not use the calcination treatment in the production of sidoarjo mud. The results showed that the analysis of XRD indicated material of fly ash is rich in quartz (SiO2), mullite (3Al2O3 2SIO2 or 2Al2O3 SiO2) dan hematite (Fe2O3), whereas the material of sidoarjo mud contained quartz (SiO2), mullite (3Al2O3 2SiO2 or 2Al2O3 SiO2), magnetite (Fe3O4), hematite (Fe2O3), and rutile (TiO2). Furthermore, the analysis of SEM showed that the particle of fly ash was amorphous and sphere with the misty su...

2016

Concrete is the most important element in a construction work. Geopolymer concrete is a type of concrete that is 100% not using cement. Fly ash from the combustion of coal is used as a source of material to make the binder required in the concrete mix. Binder is a binder in geopolymer concrete mixture consisting of fly ash and alkaline activator, fly ash used in this study using charcoal briquette powder obtained from the combustion residue of coal briquettes used is that through sieve no. 200, while the activator alkaline as a binder elements aluminum and silicate contained in fly ash to form a bond olymerization, the activator is very important for the binding elements of aluminum and silicate contained in the powder of charcoal briquettes, activator used is sodium hydroxide that serves to react elements to produce polymer powders bond charcoal briquettes and sodium silicate which has the function of accelerating the polymerization reaction. The purpose of this study for influence...