Cement paste colouring in concretes

被引：14

作者：

Chinchon, S

García, J

López-Atalaya, M

Linares, A

Vera, R

机构：

[1] Univ Alicante, Dept Construcc Arquitecton, E-03080 Alicante, Spain

[2] Univ Alicante, Dept Quim Inorgan, E-03080 Alicante, Spain

来源：

CEMENT AND CONCRETE RESEARCH | 2004年 / 34卷 / 11期

关键词：

concrete; cement paste; image analysis; coloured compounds;

D O I：

10.1016/j.cemconres.2004.02.023

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Tests have been carried out with chemicals that give rise to coloured compounds through a selective reaction with certain mineral species present in cement paste. In the case of carbonated concretes (pH congruent to 9), the reaction with potassium ferrocyanate dyes the cement paste a strong blue colour that disappears when the concrete is treated again with a slightly more alkaline solution. Both in carbonated concretes and in young concretes with an alkaline reserve (pH congruent to 12.5), the tannic acid dyes the cement paste dark brown. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1987 / 1991

页数：5

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