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中文摘要：
为了促进外掺MgO混凝土的推广应用,主要采用压汞测试手段,对掺与不掺MgO的混凝土和掺与不掺粉煤灰的MgO混凝土的微观孔结构持续跟踪了5年。结果表明,在混凝土中掺入适量MgO后,混凝土的微观孔结构随着龄期的增长持续改善;在混凝土中同时掺入适量的MgO和粉煤灰后,长龄期混凝土的微观孔结构进一步改善。
英文摘要：
Laboratory observations of five years long have been made on the micro-pore structures of MgO concrete admixed with and without fly ash respectively in this study, using mercury intrusion porosimetry to prompt application of the concrete with magnesium oxide or MgO concrete. Concrete without MgO admixture was used as a reference. The results showed that the micro-pore structure of concrete was improved continuously with age when mixing with appropriate MgO content while it was further improved at long age when mixing with appropriate MgO and fly ash contents.
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