2019
DOI: 10.1061/(asce)gt.1943-5606.0001986
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Characterization and Engineering Properties of Dry and Ponded Class-F Fly Ash

Abstract: Characterization studies conducted on Class-F fly-ash specimens gathered from different producers in the southeastern United States confirm general trends reported for fly ash worldwide. Additional tests and detailed analyses explain the spread in specific gravity (interparticle porosity cenospheres), highlight the tendency to segregation and layering, and show marked ferromagnetism. Furthermore, data show that early diagenetic cementation-within days after wetting-hinders densification and produces a fabric t… Show more

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Cited by 30 publications
(7 citation statements)
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References 27 publications
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“…Parametreler ÇC (1) UK (2) III.SD Limit (3) (mg/L) Analiz Yöntemleri (mg/L) (mg/L) (1) Çelik cürufu (2) Uçucu kül (3) Çevre Bakanlığı'nın Atıkların Düzenli Depolanmasına Dair Yönetmeliği'ne göre III. Sınıf depolama tesisleri için sınır değerler [65] 7. SONUÇLAR Dünya'da ve ülkemizde hızla önem kazanmakta olan sıfır atık hedefinin gerçekleşmesi; ancak yerel yan ürünlerin doğru karakterizasyonu ile mümkün olabilir.…”
Section: Tablo 9 -Eluat (Sızıntı Suyu) Analiz Sonuçlarıunclassified
See 1 more Smart Citation
“…Parametreler ÇC (1) UK (2) III.SD Limit (3) (mg/L) Analiz Yöntemleri (mg/L) (mg/L) (1) Çelik cürufu (2) Uçucu kül (3) Çevre Bakanlığı'nın Atıkların Düzenli Depolanmasına Dair Yönetmeliği'ne göre III. Sınıf depolama tesisleri için sınır değerler [65] 7. SONUÇLAR Dünya'da ve ülkemizde hızla önem kazanmakta olan sıfır atık hedefinin gerçekleşmesi; ancak yerel yan ürünlerin doğru karakterizasyonu ile mümkün olabilir.…”
Section: Tablo 9 -Eluat (Sızıntı Suyu) Analiz Sonuçlarıunclassified
“…o aralığında elde etmiştir. Bu çalışmada da elde edilen deney sonu içsel sürtünme açısı sunulan bu aralıkla uyumludur[65]. Pik içsel sürtünme açısı ise deney sonu için elde edilen değere oldukça çok yakındır.…”
unclassified
“…It should be noted herein that a spontaneous imbibition is a measure of particle-level wettability. In this circumstance, water does not experience spontaneous imbibition into dry fly ash; however, wettability of the particles with intra-porous grains and accessible porosity is more pronounced for water to imbibe the ash particles [47]. Thus, in this study mixing procedure was adopted to facilitate such imbibition process for preparing the suspension prior to sedimentation and separation, while the fly ash sample was presumed to have a certain amount of such accessible porosity [18].…”
Section: Cenospheres Separationmentioning
confidence: 99%
“…The time scale for chemical processes is typically quite long and the "inert assumption of soils" applies to many engineering applications. However, dissolution and precipitation can also take place within relatively short time scales in advective regimes such as infiltration-induced carbonate dissolution and when systems are taken far from equilibrium in young systems such as dam foundations, mine tailings, fly ash, volcanic ash, and CO 2 injection [1][2][3][4][5][6][7][8][9][10][11][12][13] .Waste is particularly vulnerable to dissolution and degradation because its components are suddenly exposed to new environmental conditions outside equilibrium. Heavy metals and acid drainage from mine tailings and fly ash ponds are early signs of ongoing dissolution processes 14,15 .…”
mentioning
confidence: 99%
“…The time scale for chemical processes is typically quite long and the "inert assumption of soils" applies to many engineering applications. However, dissolution and precipitation can also take place within relatively short time scales in advective regimes such as infiltration-induced carbonate dissolution and when systems are taken far from equilibrium in young systems such as dam foundations, mine tailings, fly ash, volcanic ash, and CO 2 injection [1][2][3][4][5][6][7][8][9][10][11][12][13] .…”
mentioning
confidence: 99%