【摘 要】
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The application of alkali-activated slag(AAS) has been restricted by its high drying shrinkage.In this paper,effects of CSA type expansion agent, CaO type expansion agent and shrinkage-reducing agent
【机 构】
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School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials, South
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
The application of alkali-activated slag(AAS) has been restricted by its high drying shrinkage.In this paper,effects of CSA type expansion agent, CaO type expansion agent and shrinkage-reducing agent (SRA) on the drying shrinkage and internal relative humidity(IRH) of AAS mortar were investigated.CSA, CaO and SRA reduced the drying shrinkage of AAS mortar by about 41-45%, 54-56% and 35-44% at 56 days, respectively.Additionally, the IRH of AAS mortar with CaO and SRA are all higher than that of reference group among 56 days, while the IRH of AAS mortar with CSA is only higher than that of reference group after 3 days.
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