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Waani, Joice E.; Elisabeth, Lintong

doi:10.5614/jts.2017.24.3.7

Cited by 5 publications

(4 citation statements)

References 6 publications

(7 reference statements)

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“…The utilization of fly ash waste as an alternative raw material in the cement industry must meet the criteria for the specified component compounds. There are several types of fly ash utilization products into cement including portland cement (Nurwaskito et al, 2015), composite portland cement (Al Bakri et al, 2012;Purnawan & Prabowo, 2017;Putra et al, 2020), pozzolanic portland cement (Romli, 2020;Waani & Elisabeth, 2017), hydraulic cement, and so on. The PUPR ministry issued an approval for the use of fly ash and bottom ash waste as preferred backfill and foundation layers (PUPR, 2022), while BSN published in SNI 9092: 2022 (Badan Standarisasi Nasional, 2022).…”

Section: Fly Ash As Cementmentioning

confidence: 99%

Utilization of Fly Ash Waste in the Cement Industry and its Environmental Impact: A Review

Permatasari,

Sodri,

Gustina

2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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The cement industry is one of the most important industries in the development of a country. However, the production activities of the cement industry also cause significant environmental impacts, one of which is air pollution. One of the by-products of fuel combustion in the cement industry is fly ash, which if not managed properly can pollute the air and the surrounding environment. This research aims to provide an overview of the environmental impacts of using fly ash in the cement industry, especially in relation to air pollution. This research uses the literature review method, which is by collecting and reviewing literature or documents related to the research topic. The data sources used in this research are scientific journals, books, and other related documents. Data analysis in this study was carried out by reviewing and examining literature or documents related to the research topic, then summarizing and compiling the results of the analysis into an overview. Based on the results of this study, it can be concluded that the use of fly ash in the cement industry has significant environmental impacts, especially related to air pollution. However, there are several technologies and fly ash processing methods that can reduce the environmental impact of cement industry production activities, such as the use of fly ash as raw material for making lightweight concrete or as raw material for the production of other building materials.

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Section: Fly Ash As Cementmentioning

confidence: 99%

Utilization of Fly Ash Waste in the Cement Industry and its Environmental Impact: A Review

Permatasari,

Sodri,

Gustina

2023

jppipa, pendidikan ipa, fisika, biologi, kimia

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“…Riansyam (2017) dalam penelitiannya mendapatkan hasil pemanfaatan metakaolin dalam pembuatan beton sebagai subtitusi 12,5% semen dapat meningkatkan kekuatan tekan dan kuat lentur beton. Supit et al, (2020) mengemukakan bahwa pemanfaatan material pozzolan seperti abu terbang dan kaolin pada suatu campuran yang tepat berpotensi untuk meningkatkan ketahanan beton terhadap serangan asam. Dalam hal ini perlu diperhatikan perbandingan rasio air semen dan kalsinasi kaolin sehingga pemanfaatan material ini dapat lebih optimal.…”

Section: Kaolinunclassified

Karakteristik Mekanik Campuran Panel Dinding Berbahan Dasar Metakaolin dan Serat Bambu

Paulus¹,

Supit²,

Mantiri³

2022

JTST

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Penelitian yang dilakukan ini berkaitan dengan pengaruh pemanfaatan serat bambu dan metakaolin terhadap sifat mekanik dinding panel yakni kuat tekan dan kuat lentur. Penelitian ini menggunakan variasi serat bambu yang 2%, 4%, 6% dari berat semen dan untuk kuat lentur menggunakan serat bamboo berdasarkan nilai kuat tekan optimum. Dalam pembuatan panel dinding digunakan juga foam agent 1% dari berat air dan Metakaolin sebagai bahan subsitusi 10% dari berat semen. Penelitian ini dilakukan dalam bentuk eksperimen di Laboratorium Material Politeknik Negeri Manado. Berdasarkan hasil penelitian, komposisi yang menggunakan serat 2% dari berat semen sebagai bahan tambah memberikan nilai kuat tekan tertinggi yakni 5,4 MPa pada umur 28 hari, dan nilai kuat lentur 3,31MPa pada umur benda uji 14 hari. Dapat disimpulkan bahwa komposisi campuran panel yang dibuat berpotensi untuk digunakan sebagai bagian elemen suatu bangunan karena memiliki kekuatan yang cukup dan memiliki berat yang ringan.

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“…Tridymite and cristobalite are crystalline silica detected by XRD analysis in all trass samples. The presence of silica is also required as a condition that material has pozzolanic activity (Waani and Elisabeth, 2017).…”

Section: Quality Of Trass As Scmmentioning

confidence: 99%

Characteristics of Kedondong Trass and Bobos Trass as Cement Raw Material, Cirebon, West Java, Indonesia

Marin

Winarno

Fairuz

2022

J. Geoscience Eng. Environ. Technol.

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The use of cement materials in construction continues to increase every year, consumes lots of raw material and emits CO2 from clinker production. To eliminate this negative effect, alternative materials are needed. Trass is natural pozzolan which is formed from silica-alumina rich volcanic rocks. As supplementary cementitious material, trass is sufficiently durable and reduce clinker proportion in cement mixture, thus more environmentally friendly. This research aims to determine characteristics and composition of Kedondong trass and Bobos trass, Cirebon, West Java as raw material for pozzolan cement. The study was conducted using petrography and XRD analysis to determine mineralogy of rocks. XRF analysis was carried out to determine chemical composition as well as other tests to determine trass quality. Kedondong trass is originated from andesite intrusion and andesitic breccia, while Bobos trass is formed from hypersthene-andesite intrusion. Based on mineralogy analysis, trasses have similar mineral composition consist of plagioclase, quartz, pyroxene, hornblende, and sanidine. XRD analysis shows abundance of cristobalite and tridymite from each samples. This mineralogy is confirmed by geochemistry result, which is the samples contain more than 70% SiO2 + Al2O3 and less than 4% SO3. Other chemical characteristics that have been tested are moisture content, ignition loss, and clay content in which all of those parameters meet the industrial standard for cement material.

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Abstract: AbstrakPenggunaan material semen dalam industri konstruksi terus meningkat dari tahun ke tahun dan peningkatan ini berakibat pada meningkatnya produksi gas buangan, co 2

Cited by 5 publications

References 6 publications

Utilization of Fly Ash Waste in the Cement Industry and its Environmental Impact: A Review

Utilization of Fly Ash Waste in the Cement Industry and its Environmental Impact: A Review

Karakteristik Mekanik Campuran Panel Dinding Berbahan Dasar Metakaolin dan Serat Bambu

Characteristics of Kedondong Trass and Bobos Trass as Cement Raw Material, Cirebon, West Java, Indonesia

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