ITZ microstructure of concrete containing GGBS

被引：141

作者：

Gao, JM ^{[1
]}

Qian, CX ^{[1
]}

Liu, HF ^{[1
]}

Wang, B ^{[1
]}

Li, L ^{[1
]}

机构：

[1] Southeast Univ, Dept Mat Sci & Engn, Nanjing 210096, Peoples R China

来源：

CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 07期

关键词：

X-ray diffraction; microhardness; SEM; interfacial transition zone (ITZ); granulated blast-furnace slag;

D O I：

10.1016/j.cemconres.2004.06.042

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The interfacial transition zone (ITZ) of aggregate-cement paste and the morphology of hydrates in concrete containing ground granulated blast-furnace slag (GGBS) have been investigated using XRD, SEM and microhardness measurements. The experimental results demonstrated that GGBS significantly decreases both the quantity and the orientating arrangement of CH crystals at the ITZ. The CH crystal size becomes smaller because of the addition of GGBS. The weak ITZ between aggregate and cement paste was strengthened as a result of the pozzolanic reaction of GGBS. The above improvements become much more significant with the decrease of particle sizes of GGBS. (c) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1299 / 1304

页数：6