scholarly journals The Effect of Fly Ash Composition and Drying Time Concrete Brick in Density Test

2018 ◽  
Vol 215 ◽  
pp. 01029
Author(s):  
Nurzal ◽  
Mastaryanto Perdana ◽  
Heru Pratama Putera
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Coal Combustion ◽  
Test Specimen ◽  
Negative Impact ◽  
Normal Concrete ◽  
Drying Time ◽  
Ash Composition

This study uses the fly ash (FA) from coal combustion power plant Sijantang Sawahlunto. By utilizing fly ash in concrete brick can reduce the negative impact on the environment, composition of fly ash in concrete brick at 0, 5, 10, and 15 wt.% FA concrete brick added material (sand, cement and water as a binder). Influence of drying time 7, 14, 21, 28, and 35 days. Test specimen based on SNI 03-0349-1989, with size of 34 x 12 x 9 cm. The results showed that the composition of 5 wt.% fly ash with 28 days drying time was found to be the highest density with 2,230 gr/cm3, while the lowest density in the composition test was 15 wt.% fly ash with 35 days drying time with the density 1,946 gr/cm3. In this study, the density of normal concrete brick density with density 2,208-2,230 gr/cm3 and light concrete brick density of 2,000-1,946 gr/cm3, and also found a normal and light concrete brick category that is 2,022-2,053 gr/cm3.

Effect of fly ash composition on the retention of mercury in coal-combustion flue gas

2016 ◽  
Vol 142 ◽  
pp. 6-12 ◽  
Author(s):  
Ping He ◽  
Xianbing Zhang ◽  
Xiaolong Peng ◽  
Jiang Wu ◽  
Xiuming Jiang
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Coal Combustion ◽  
Ash Composition

scholarly journals PEMANFAATAN LIMBAH FLY ASH DAN BOTTOM ASH DARI PLTU SUMSEL-5 SEBAGAI BAHAN UTAMA PEMBUATAN PAVING BLOCK

2019 ◽  
Vol 11 (1) ◽  
pp. 1067
Author(s):  
Hadi Winarno ◽  
Damris Muhammad ◽  
Yudha Gusti Wibowo
Keyword(s):  
Operating System ◽  
Compressive Strength ◽  
Fly Ash ◽  
Power Plant ◽  
Portland Cement ◽  
Solid Waste ◽  
Coal Combustion ◽  
Bottom Ash ◽  
Steam Power ◽  
Class B

Fly ash and bottom ash are solid waste from coal combustion in the operating system of Steam Power Plant (PLTU). The research was conducted by combining fly ash and bottom ash with an adhesive consisting of portland cement. Based on the tests performed the maximum mixture obtained with cement samples, fly ash and bottom ash is 1: 2: 2. Paving blocks made from fly ash and bottom ash have compressive strength values resulting in compressive strength values of 50.52 MPa. This value indicates that the sample is in the class of paving blocks A. Paving Block made from fly ash and bottom ash also has a very good average air absorption value, in a combination of suitable cement mixtures, fly ash and bottom ash (1: 2: 2) the average air absorption value is still 5.06%. This value shows that the sample is in class B paving blocks.

scholarly journals Variations in fly ash composition with sampling location: Case study from a Portuguese power plant

2009 ◽  
Vol 1 (1) ◽  
pp. 14-24 ◽  
Author(s):  
B. Valentim ◽  
A. Guedes ◽  
D. Flores ◽  
C.R. Ward ◽  
J.C. Hower
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Sampling Location ◽  
Ash Composition

scholarly journals Desulfurisasi dan Penyerapan Merkuri secara Simultan dari Batubara Peringkat Rendah (Aceh Barat) untuk Aplikasi Power Plant dengan Adsorben Zeolit

2019 ◽  
Vol 7 (1) ◽  
pp. 73
Author(s):  
Yuanda Wattimena ◽  
Asri Gani ◽  
Medyan Riza
Keyword(s):  
Stainless Steel ◽  
Fly Ash ◽  
Power Plant ◽  
Fluidized Bed ◽  
Flue Gas ◽  
Coal Combustion ◽  
Bottom Ash ◽  
Tube Furnace ◽  
Fluidized Bed Combustion ◽  
Gas Combustion

Adsorpsi emisi pembakaran batubara dengan menggunakan adsorben zeolit pada jenis briket dan pulverized telah dilakukan. Penelitian ini bertujuan untuk mengurangi emisi gas SO2 dan logam Hg yang berbahaya apabila rilis di udara bebas dengan cara menggunakan adsorben zeolit untuk kecendrungan emisi menjadi bottom ash yang lebih terkendali. Pengujian ini fokus mengevaluasi rasio optimal rasio adsorben terhadap jumlah batubara terhadap performa penyerapan, sehingga penggunaannya tidak mengurangi nilai bakar batubara. Prosedur pembakaran ekspremintal awal dimulai dari pencampuran batubara dan zeolit dengan rasio 4%, 6%, 8%, 10%  dan 12%  yang dibagi dalam bentuk briket dan pulverized. Kedua jenis sampel dibakar secara berurutan pada electrical stainless steel reaction tube furnace pada kondisi temperatur pembakaran Fludized Bed Coal Combustion yaitu 600oC, 700oC, dan 800oC dengan laju alir udara disesuaikan. Flue gas hasil pembakaran yang keluar dari outlet dianalisa menggunakan Gas Combustion and Emission Analyzer (E4400, E-Instrument). Logam Hg yang yang diserap oleh zeolit pada Bottom Ash dianalisa menggunakan NIC Mercury SP Anlayzer. Hasil pengujian menunjukan kinerja zeolit terhadap kapasitas penyerapan logam Hg untuk pembakaran batubara pulverized pada temperatur pembakaran  600oC, 700oC dan 800oC masing-masing didapat pada angka 33,6, 19,25 dan 9,97 ppb/gr serta pada pembakaran briket batubara  masing-masing didapat sebesar 59,83, 37,8 dan 24,22 ppb/gr. Secara simultan untuk mengurangi emisi SO2 dan logam berat Hg pada fly ash untuk temperatur pembakaran Fludized Bed Coal Combustion rasio optimum berkisar antara 6%-8% adsoben zeolit dari jumlah massa batubara Kaway XVI Kabupaten Aceh Barat. Kata kunci:adsorpsi,  fluidized bed combustion, zeolit, briket, pulverized

Variations in Fly Ash Composition from the Soma Power Plant, Turkey

2005 ◽  
Vol 27 (15) ◽  
pp. 1473-1481 ◽  
Author(s):  
Ali Ihsan Karayigit ◽  
Yilmaz Bulut ◽  
Xavier Querol ◽  
Andres Alastuey ◽  
Stanislav Vassilev
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Ash Composition

Mercury Interaction with the Fine Fraction of Coal-Combustion Fly Ash in a Simulated Coal Power Plant Flue Gas Stream

2015 ◽  
Vol 29 (9) ◽  
pp. 6025-6038 ◽  
Author(s):  
Adam D. Jew ◽  
Erik C. Rupp ◽  
Dawn L. Geatches ◽  
Ji-Eun Jung ◽  
Gabriela Farfan ◽  
...  
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Flue Gas ◽  
Coal Combustion ◽  
Fine Fraction ◽  
Coal Power Plant ◽  
Coal Power
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