Magnetic resonance imaging of 1H, 23Na, and 35Cl penetration in Portland cement mortar

被引：18
|
作者：
Cano, FD
Bremner, TW
McGregor, RP
Balcom, BJ
机构：
[1] Univ New Brunswick, Dept Phys, MRI Ctr, Fredericton, NB E3B 5A3, Canada
[2] Univ New Brunswick, Dept Civil Engn, Fredericton, NB E3B 5A3, Canada
来源：
CEMENT AND CONCRETE RESEARCH | 2002年 / 32卷 / 07期
基金：
加拿大自然科学与工程研究理事会;
关键词：
chloride penetration; durability; mortar; SPRITE-MRI; transport properties;
D O I：
10.1016/S0008-8846(02)00747-0
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The first magnetic resonance imaging profiles of chloride content in low- and high-permeability Portland cement mortar have been obtained using a novel material science imaging technique. The penetration of water as well as chloride and sodium ions, into mortar specimens was monitored for a period of 72 h. Marked differences in penetration depth were observed in low- and high-permeability mortar. These preliminary experiments show significant differences between the extent and nature in the penetration of chlorides compared to water and sodium. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：1067 / 1070
页数：4
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