A case study of two airport runways affected by alkali-carbonate reaction .2. Microstructural investigations

被引：2
|
作者：
Tong, L [1 ]
Tang, MS [1 ]
机构：
[1] NANJING INST CHEM TECHNOL,DEPT MAT SCI & TECHNOL,NANJING 210009,PEOPLES R CHINA
来源：
CEMENT AND CONCRETE RESEARCH | 1997年 / 27卷 / 03期
关键词：
D O I：
10.1016/S0008-8846(97)00012-4
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Through detailed petrographic examination of the aggregates in damaged concrete structures affected by alkali-carbonate reaction (ACR), it was found that the presence of brucite in the reacted aggregate particles is not a critical determination of the presence of ACR. The occurrence of the reaction product layers between dolomite crystals and surrounding matrix in reactive aggregates is understood as an important indicator to evaluate the presence of ACR. It is suggested that detailed microstructural study should be performed in diagnosis. (C) 1997 Elsevier Science Ltd.
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页码：329 / 336
页数：8
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