The physical and mechanical properties of composite cements manufactured with calcareous and clayey Greek diatomite mixtures

被引：65

作者：

Fragoulis, D

Stamatakis, MG

Papageorgiou, D

Chaniotakis, E

机构：

[1] TITAN Cement Co SA, Kamari Plant, Attica 19200, Greece

[2] Natl Univ Athens, Dept Geol, Athens 15784, Greece

来源：

CEMENT & CONCRETE COMPOSITES | 2005年 / 27卷 / 02期

关键词：

diatomite; diatom frustules; pozzolana; cement; amorphous silica;

D O I：

10.1016/j.cemconcomp.2004.02.008

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The aim of the present study is to test diatomite rocks as alternative pozzolanic materials that could be used for the manufacturing of pozzolanic cements in Greece. The diatomite rocks used occur in Samos Island and in the Elassona, Greece. The Samos diatomites were mainly consisted of calcite and opal-A, whereas the Elassona diatomite consisted of opal-A. clay minerals, feldspars and quartz. As a result, the Samos samples were rich in CaO and SiO2, while the Elassona ones were rich in SiO2, Al2O3 and Fe2O3. The specific surface of the laboratory-produced cements was high. with the grindability of the Elassona diatomites being lower than that of Samos. The water demand of all blended cements was higher than that of the laboratory produced OPC. The late compressive strength of most diatomite cements studied was improved with respect to the lab OPC. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：205 / 209

页数：5

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