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

Valentim, Bruno; Guedes, Alexandra; Flores, Deolinda; Ward, Colin R.; Hower, James C.

doi:10.4177/ccgp-d-09-00017.1

Cited by 22 publications

(9 citation statements)

References 53 publications

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“…Currently worldwide, as a construction product, fly ashes are regulated and it is understood that their composition depends on factors such as feed composition [34], type of furnace [36], plant design [37]. The above presented work served the purpose of providing a tool for a more detailed characterization of fly ashes for the purpose of road construction.…”

Section: Discussionmentioning

confidence: 99%

Etchable iron content (FETCH) proposed as the missing parameter for the better prediction of asphalt mastic stiffening

Makowska

Pellinen

2015

Construction and Building Materials

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Section: Discussionmentioning

confidence: 99%

Etchable iron content (FETCH) proposed as the missing parameter for the better prediction of asphalt mastic stiffening

Makowska

Pellinen

2015

Construction and Building Materials

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“…In previous studies [7,14,43,[59][60][61][62] they were stated that the leaching behavior of the elements depends strongly on the alkalinity of the fly ashes and the leach solution pH changed in the course of the leaching process. For this reason, the pH values of the fly ash and leach solution mixtures were continuously measured in the same conditions with leaching processes.…”

Section: Leaching Of Selected Elementsmentioning

confidence: 99%

Characterization and comparison of leaching behaviors of fly ash samples from three different power plants in Turkey

Yılmaz

2015

Fuel Processing Technology

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“…ternary system (in mol%). (A) Typical glass compositions for Si-rich fly ashes, [46][47][48][49][50] Ca-rich fly ashes, 51 and blast-furnace slags. 47,[52][53][54][55][56] The compositions are either directly taken from the indicated literature or estimated from QXRD and XRF data.…”

Section: Introductionmentioning

confidence: 99%

The effect of glass composition on the reactivity of synthetic glasses

et al. 2017

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The reactivity of synthetic glasses depends on their chemical compositions. In far from equilibrium dissolution experiments, the reactivity of Ca‐rich glasses with compositions similar to blast‐furnace slag is found to be much higher (up to ~60 wt.% after 7 days) compared to Si‐rich glasses with compositions similar to type F fly ash (up to ~20 wt.% after 7 days). Isothermal calorimetry and TGA experiments conducted on model systems containing portlandite and calcite and on glass‐blended Portland cement confirmed the higher reactivity of the Ca‐rich glasses. The degree of glass reaction after 91 days ranged from 7 to 20 wt.%. The results showed also a higher reactivity of the glasses containing more aluminum (both for Ca‐rich and Si‐rich glasses) indicating that not only calcium but also aluminum acted rather as network modifier than as network former. The results confirm a strong dependence of the glass reactivity on the degree of polymerization of the glass network.

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

Cited by 22 publications

References 53 publications

Etchable iron content (FETCH) proposed as the missing parameter for the better prediction of asphalt mastic stiffening

Etchable iron content (FETCH) proposed as the missing parameter for the better prediction of asphalt mastic stiffening

Characterization and comparison of leaching behaviors of fly ash samples from three different power plants in Turkey

The effect of glass composition on the reactivity of synthetic glasses

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