Early-age hydration kinetics of steel slags

被引：20

作者：

Ionescu, D ^{[1
]}

Meadowcroft, TR ^{[1
]}

Barr, PV ^{[1
]}

机构：

[1] Univ British Columbia, Dept Met & Mat Engn, Vancouver, BC V6T 124, Canada

来源：

ADVANCES IN CEMENT RESEARCH | 2001年 / 13卷 / 01期

关键词：

D O I：

10.1680/adcr.13.1.21.39302

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Unlike blast-furnace slags, steel-making slag is not a normal admixture for Portland cement. However recent work has suggested that by adjusting the chemistry and the cooling rate to generate a substantial glassy phase, the potential for hydration and strength development for the granulated product is enhanced. In order to better understand the role of glassy phases in the hydration process, isothermal calorimetry was used to determine the heat release and the rate of hydration within the 25-70 degreesC range. Synthetic slags, of varying glass:crystal ratios, were used along with Portland cement as a reference. The reactivity of the synthetic slags was found to increase with glassy content which is in agreement with the lower activation energies calculated for these slags. Activation energies for slags were found to be greater than for Portland cement.

引用

页码：21 / 30

页数：10

共 31 条

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