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| 摘要: |
| 主要研究了新型镁质膨胀材料对高C3S含量(质量分数为64．4％)水泥浆体收缩的补偿作用，结果表明，根据一定条件下(如养护温度、掺加粉煤灰等)水泥浆体的收缩特性来调整膨胀材料的煅烧温度和煅烧时间，控制合理的掺加量，新型镁质膨胀材料可以有效地补偿水泥浆体的收缩． |
| 关键词: 膨胀材料 新型 水泥浆体 镁质 煅烧温度 收缩特性 质量分数 养护温度 掺加量 粉煤灰 |
| DOI： |
| 分类号:TU528 TU391 |
| 基金项目:国家重点基础研究发展规划(973)项目(2001CB610705)，江苏省高校自然科学基金资助项目(02KJB430003) |
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| Compensating Shrinkage of Cement Paste by New MgO-Based Expansive Material |
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XU Ling-ling DENG Min ZHAO Xia
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| Abstract: |
| The expansive characteristics of new MgO-based expansive materials and the compensating shrinkage of cement paste with high C_3S content were investigated. The results show that the shrinkage of cement paste can be compensated by the new MgO-based expansive materials well, only if the burning temperature and burning time of expansive material are controlled and the dosage of expansive material in cement is suitable according to the hydration temperature and with fly ash or not. |
| Key words: expansive agent,MgO,shrinkage |
