The influence of particle size on the pozzolanic reactivity of quartz powder

被引：57

作者：

Benezet, JC ^{[1
]}

Benhassaine, A ^{[1
]}

机构：

[1] Ecole Mines Ales, Lab Gen Particulaire, F-30319 Ales, France

来源：

POWDER TECHNOLOGY | 1999年 / 103卷 / 01期

关键词：

quartz; pozzolanic reactivity; granulometric distribution; critical size;

D O I：

10.1016/S0032-5910(99)00010-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Materials with cement-based matrices represent a class of materials notable for their wide and plentiful use. Up to the present, component reactivity was closely Linked to the material's vitreous characteristics. The question we wanted to find an answer to was: is the pozzolanic reaction one which is specific to vitreous materials? To tackle it, we chose quartz, a mineral commonly found in cement-based matrices and supposed to be chemically inert because of its crystalline structure. The pozzolanic reaction of quartz is a complex dissolution-precipitation reaction influenced by numerous parameters. It is only barely perceptible for the particle diameters exceeding a certain critical size.

引用

页码：26 / 29

页数：4

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