Mechanical treatments of fly ashes. Part 3: Studies on strength development of ground fly ashes (GFA)-cement mortars
- Univ. Politecnica de Valencia (Spain)
Early and medium-term strength developments for mortars containing ground fly ashes (GFA) were studied and compared with the behavior of mortars containing non-mechanically treated fly ash. Linear correlations between mechanical properties and the logarithm of curing time for mortars containing 15--60% fly ash replacing percentages were established. Compressive Strength Gain (SGi) and Pozzolanic Effectiveness Ratio (PER) 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.
- OSTI ID:
- 561925
- Journal Information:
- Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 9 Vol. 27; ISSN 0008-8846; ISSN CCNRAI
- Country of Publication:
- United States
- Language:
- English
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