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Mechanical treatments of fly ashes. Part III: Studies on strength development of ground fly ashes (GFA) - cement mortars

Paya, J. / Monzo, J. / Borrachero, M.V. / Peris, E. / Gonzalez-Lopez, E.

Early and medium-term strength developments for mortars containing GFA (ground fly ashes) were studied and compared with the behaviour of mortars containing non-mechanically treated fly ash. Linear correlations between mechanical properties and the logarithm of curing time for mortars containing 15 % to 60 % fly ash replacing percentages were established. SGi (Compressive Strength Gain) and PER (Pozzolanic Effectiveness Ratio) were calculated, suggesting the increasing of pozzolanic activity with grinding of fly ash. A new mathematical model has been proposed for mechanical properties of mortars containing high replacing percentages and for a wide curing time range. Optimums for mechanical properties were calculated for mortars containing GFA.

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Mechanical treatments of fly ashes. Part III: Studies on strength development of ground fly ashes (GFA) - cement mortars

Paya, J. / Monzo, J. / Borrachero, M.V. / Peris, E. / Gonzalez-Lopez, E.

Early and medium-term strength developments for mortars containing GFA (ground fly ashes) were studied and compared with the behaviour of mortars containing non-mechanically treated fly ash. Linear correlations between mechanical properties and the logarithm of curing time for mortars containing 15 % to 60 % fly ash replacing percentages were established. SGi (Compressive Strength Gain) and PER (Pozzolanic Effectiveness Ratio) were calculated, suggesting the increasing of pozzolanic activity with grinding of fly ash. A new mathematical model has been proposed for mechanical properties of mortars containing high replacing percentages and for a wide curing time range. Optimums for mechanical properties were calculated for mortars containing GFA.

Mechanical treatments of fly ashes. Part III: Studies on strength development of ground fly ashes (GFA) - cement mortars

Paya, J. / Monzo, J. / Borrachero, M.V. / Peris, E. / Gonzalez-Lopez, E.

Early and medium-term strength developments for mortars containing GFA (ground fly ashes) were studied and compared with the behaviour of mortars containing non-mechanically treated fly ash. Linear correlations between mechanical properties and the logarithm of curing time for mortars containing 15 % to 60 % fly ash replacing percentages were established. SGi (Compressive Strength Gain) and PER (Pozzolanic Effectiveness Ratio) were calculated, suggesting the increasing of pozzolanic activity with grinding of fly ash. A new mathematical model has been proposed for mechanical properties of mortars containing high replacing percentages and for a wide curing time range. Optimums for mechanical properties were calculated for mortars containing GFA.

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Title:

Mechanical treatments of fly ashes. Part III: Studies on strength development of ground fly ashes (GFA) - cement mortars

Additional title:

Mechanische Behandlung von Flugaschen. Teil 3: Untersuchungen zur Festigkeitsentwicklung von gemahlenen Flugaschen (GFA)-Zement-Mörteln

Contributors:

Paya, J. (author) / Monzo, J. (author) / Borrachero, M.V. (author) / Peris, E. (author) / Gonzalez-Lopez, E. (author)

Published in:

Cement and Concrete Research ; 27 ; 1365-1377

Publication date:

1997

Size:

13 Seiten, 10 Bilder, 6 Tabellen, 13 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(97)00129-4

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Flugasche , Vermahlung , mechanische Festigkeit , Dauer , Druckfestigkeit , Puzzolanzement , Mahlfeinheit , mechanische Behandlung , Flugaschenzement , Mörtel , Portlandzement , Biegefestigkeit

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