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231224s2012 xx ||||| 00| ||eng c |
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|a pubmed24n0733.xml
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|a (DE-627)NLM219926255
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|a (NLM)22856304
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Chen, Chen
|e verfasserin
|4 aut
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|a Feasibility of manufacturing geopolymer bricks using circulating fluidized bed combustion bottom ash
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 06.09.2012
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|a Date Revised 10.12.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a This paper presents a study on geopolymer bricks manufactured using bottom ash from circulating fluidized bed combustion (CFBC). The alkali activators used for synthesis were sodium silicate, sodium hydroxide, and potassium hydroxide and lithium hydroxide solutions. The study included the impact of alkali activator on compressive strength. The reaction products were analysed by XRD, FT-IR and SEM/EDS. The compressive strength of bricks was dependent on the modulus of the sodium silicate activator and the type and concentration of alkali activator. The highest compressive strength could be gained when the modulus was 1.5, and the value could reach 16.1 MPa (7 d after manufacture) and 21.9 MPa (28 d after manufacture). Under pure alkaline systems, the compressive strength was in the order of 10 M KOH > 10 M NaOH > 5 M LiOH > 5 M KOH > 5 M NaOH. Quartz was the only crystalline phase in the original bottom ash, and no new crystalline phase was found after the reaction. The main product of reaction was amorphous alkali aluminosilicate gel and a small amount of crystalline phase was also found by SEM
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|a Evaluation Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Coal Ash
|2 NLM
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|a Industrial Waste
|2 NLM
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|a Li, Qin
|e verfasserin
|4 aut
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|a Shen, Lifeng
|e verfasserin
|4 aut
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|a Zhai, Jianping
|e verfasserin
|4 aut
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|i Enthalten in
|t Environmental technology
|d 1993
|g 33(2012), 10-12 vom: 16. Juni, Seite 1313-21
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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|g volume:33
|g year:2012
|g number:10-12
|g day:16
|g month:06
|g pages:1313-21
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|a GBV_ILN_350
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|a AR
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|d 33
|j 2012
|e 10-12
|b 16
|c 06
|h 1313-21
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