Potential Use of Fly Ash Base-Geopolymeras Aggregate Substitution in Asphalt Concrete Mixtures

Karyawan, I DewaMade Alit; Ahyudanari, Ervina; Ekaputri, Januarti Jaya

doi:10.21817/ijet/2017/v9i5/170905005

Cited by 11 publications

(14 citation statements)

References 10 publications

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“…Pada agregat kasar menggunakan geopolimer agregat buatan 25% dan alami 75%. Agregat buatan ini telah diuji dan diketahui bahwa karakteristik agregat buatan memiliki karakteristik yang baik [7]. Berikut ini spesifikasi standar dari 3 agregat tercantum pada Gambar 1, Gambar 2, dan Gambar 3.…”

Section: Metodeunclassified

Analisis Perbandingan Kadar Aspal Optimum (KAO) untuk Perbedaan Gradasi (BBA, FAA dan BM)

Efendy¹,

Ahyudanari

2019

JITS

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Aggregate gradation is one of the important parts in a paved mixture. Mixed properties such as stability, stiffness, ease of work, permeability, durability, fatigue resistance, slip resistance, and water resistance are strongly influenced by aggregate gradations. There are 3 types of gradations used in this study, there are BBA gradation is open graded while FAA gradation and BM gradation are dense graded. BBA and FAA are gradations used for airport pavement while BM is a gradation used for road construction. In 2018, bitumen demand in Indonesia reaches 1.8 billion tons, but what can be fulfilled by local bitumen producers only reaches 344 million tons. PT. Pertamina (Persero) has only been able to fulfill 30% of domestic bitumen requirements. The remaining 70% of the bitumen is imported from Singapore because of the low supply of bitumen from domestic producers. The purpose in this study to determine comparision of the optimum bitumen content between BBA (Béton Bitumineux pour chausées Aéronautiques)

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Section: Metodeunclassified

Analisis Perbandingan Kadar Aspal Optimum (KAO) untuk Perbedaan Gradasi (BBA, FAA dan BM)

Efendy¹,

Ahyudanari

2019

JITS

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“…Telah dilakukan penelitian mengenai pasta geopolimer dengan komposisi campuran 75% fly ash berbanding 25% alkali aktifator [5]. Alkali aktifator yang digunakan adalah Na2SiO3 dan NaoH.…”

Section: Pendahuluanunclassified

“…Hasil penelitian menunjukkan bahwa kerapatan dari geopolimer dengan rasio alkali aktivator 1.5, 2, dan 2.5 adalah 2.35, 2.38 dan 2.30. Sementara kuat tekan rata-rata rasio alkali aktivator 1.5, 2, dan 2.5 adalah 48.09, 40.68, dan 30.45 [5]. Sehingga dapat disimpulkan bahwa agregat buatan dapat dibuat dari geopolimer berbahan dasar fly ash.…”

Section: Pendahuluanunclassified

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Pengaruh Variasi Penambahan Agregat Buatan Terhadap Kadar Aspal Optimum untuk Perkerasan Aspal Lapis Aus

Putri

Hariyadi

Karyawan

et al. 2019

JTITS

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Agregat yang digunakan pada konstruksi perkerasan umumnya menggunakan batu pecah yang didapatkan dari batu gunung maupun sungai yang dapat menyebabkan ketidakseimbangan alam. Oleh karena itu diperlukan agregat buatan yang dapat menggantikan fungsi agregat alami maupun dapat mengurangi penggunaan agregat alami secara signifikan. Penelitian ini bertujuan untuk mengetahui pengaruh variasi penambahan agregat buatan terhadap kadar aspal optimum untuk perkerasan aspal lapis aus. Penelitian ini menggunakan agregat buatan geopolimer berbahan dasar fly ash yang digunakan ke dalam campuran dan dijadikan sebagai pengganti agregat kasar untuk perkerasan lapis aus untuk jalan raya. Variasi komposisi agregat buatan yang digunakan yaitu 0%, 25%, 50%, 75% dan 100%. Terdapat lima sampel untuk masing-masing variasi dengan menggunakan tiga kadar aspal yaitu 5%, 6% dan 7%. Hasil yang didapatkan pada penelitian menunjukkan bahwa kadar aspal optimum untuk variasi penambahan 0% agregat buatan dan 25% penambahan agregat buatan memiliki kadar aspal optimum, sementara untuk variasi penambahan agregat buatan 50%, 75% dan 100% agregat buatan, hasilnya tidak mencukupi syarat spesifikasi yang ada, sehingga tidak dapat ditarik kadar aspal optimum.

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“…1 illustrates the raw materials used for sample preparation. The geopolymer samples were prepared by the following procedure, according to Karyawan et al [22] (Fig. 2).…”

Section: Sample Preparationmentioning

confidence: 99%

Preparation and Investigation of Geopolymers Generated From Construction, Demolition and Industrial Wastes

Udvardi

Кириленко

Kurovics

et al. 2019

Materials and Contact Characterisation IX

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Geopolymers are inorganic amorphous aluminosilicate materials, which can be produced by the alkali activation of materials with high aluminum and silicon content. In this research, we prepared geopolymer samples obtained from construction and demolition (C&D) waste materials (brick powder and concrete powder), as well as industrial waste material (aluminum dross), and we investigated them using different test methods. Density, particle size distribution and chemical elemental composition were determined on the dried powdered waste materials, and microstructural observations were also made using a scanning electron microscope (SEM) technique. To prepare the geopolymer sample mixtures of sodium-hydroxide and sodium silicate, we used an alkali activator solution at different concentrations (4 M, 8 M and 12 M). We used Fourier Transformation Infrared Spectroscopy (FTIR) to reveal new phases in geopolymer samples. Compression strength was determined after 7 days and after 28 days. In the cases when aluminum dross was used, a gas-forming reaction took place in the geopolymer pastes; therefore, foamed geopolymer was produced. According to these results, the used C&D and industrial wastes may be potential raw materials which could be used to prepare geopolymers.

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Potential Use of Fly Ash Base-Geopolymeras Aggregate Substitution in Asphalt Concrete Mixtures

Cited by 11 publications

References 10 publications

Analisis Perbandingan Kadar Aspal Optimum (KAO) untuk Perbedaan Gradasi (BBA, FAA dan BM)

Analisis Perbandingan Kadar Aspal Optimum (KAO) untuk Perbedaan Gradasi (BBA, FAA dan BM)

Pengaruh Variasi Penambahan Agregat Buatan Terhadap Kadar Aspal Optimum untuk Perkerasan Aspal Lapis Aus

Preparation and Investigation of Geopolymers Generated From Construction, Demolition and Industrial Wastes

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