Mechanical treatments of fly ashes .3. Studies on strength development of ground fly ashes (GFA) - Cement mortars

被引：89

作者：

Paya, J

Monzo, J

Borrachero, MV

Peris, E

GonzalezLopez, E

机构：

[1] Grupo Invest. Quim. los Mat. Constr., Depto. de Ing. de la Constr., Univ. Politécnica de Valencia, E-46071 Valencia, Camino de Vera s/n

来源：

CEMENT AND CONCRETE RESEARCH | 1997年 / 27卷 / 09期

关键词：

D O I：

10.1016/S0008-8846(97)00129-4

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Early and medium-term strength developments for mortars containing ground fly ashes (GFA) 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 15-60% 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 GFA. (C) 1997 Elsevier Science Ltd.

引用

页码：1365 / 1377

页数：13

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