碱-骨料反应
耐久性
碱-硅反应
骨料(复合)
碱金属
材料科学
熔渣(焊接)
复合材料
磨细高炉矿渣
粉煤灰
化学
有机化学
作者
Tanya Bakharev,Jay Sanjayan,Yi‐Bing Cheng
标识
DOI:10.1016/s0008-8846(00)00483-x
摘要
This paper presents an investigation into durability of alkali-activated slag (AAS) concrete exposed to alkali–aggregate reaction (AAR). In the concrete prism test method (ASTM C 1293), reactive aggregates introduced in the AAS matrix reacted with alkali–silica gel formed around aggregates. The expansion of AAS concrete prisms was 0.04% after 50 days and 0.1% after 22 months. The expansion in OPC concrete was about 0.03% after 22 months of experiment. It was found that AAS concrete had lower resistance to alkali–aggregate attack than that of OPC concrete of similar grade.
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