Abstract Three types of alkali-silica reaction (ASR) products, i.e., crystalline K-shlykovite, Na-shlykovite and nano-crystalline ASR-P1, have recently been synthesized at 80 °C. It is critical to verify the formation of these ASR products in concrete in order to transfer the knowledge of ASR gained from the synthesized products to the ones formed in field concrete. Therefore, ASR products formed in concrete exposed to KOH, NaOH or mixture of KOH/NaOH solution at 60 and 80 °C are analyzed using Raman spectroscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy. The results show that at temperature between 60 and 80 °C K-shlykovite and ASR-P1 are formed in concrete exposed to KOH or a mixture of KOH/NaOH solution, whereas Na-shlykovite is formed in concrete exposed to NaOH solution. Moreover, K-shlykovite and Na-shlykovite do not co-precipitate in the same concrete, not even in the concrete exposed to the mixture of KOH/NaOH solution.

中文翻译：

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60°C 和 80°C 加速碱硅反应下混凝土中石蜡和 ASR-P1 的形成

摘要 最近在80 °C 下合成了三种碱硅反应(ASR) 产物，即结晶K-shlykovite、Na-shlykovite 和纳米晶ASR-P1。验证这些 ASR 产品在混凝土中的形成至关重要，以便将从合成产品中获得的 ASR 知识转移到现场混凝土中形成的产品中。因此，在 60 和 80 °C 下暴露于 KOH、NaOH 或 KOH/NaOH 溶液混合物的混凝土中形成的 ASR 产物使用拉曼光谱和扫描电子显微镜与能量色散 X 射线光谱进行分析。结果表明，在 60 至 80 °C 的温度下，K-shlykovite 和 ASR-P1 在暴露于 KOH 或 KOH/NaOH 溶液的混凝土中形成，而 Na-shlykovite 在暴露于 NaOH 溶液的混凝土中形成。而且，