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Shrinkage of Blended Cement Pastes with Mineral Addtions

机译：掺有矿物质的混合水泥浆的收缩

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摘要

Mineral additions such as fly ash and silica fume are industrial by products, and play an important role in properties improvement for construction materials. In this work, the shrinkage of cement paste blended with fly ash and silica fume by different substitute ratio was studied. Pore structures of specimens at different ages were determined by mercury intrusion porosimetry (MIP) and shrinkage deformation was measured by standard shrinkage tests. The effects of mineral additions on shrinkage were discussed. The results show that the fly ash was significantly effective on shrinkage at early ages. Based on the research, several suitable advices were offered to optimize the performances of materials and reduce the shrinkage.
机译：矿物添加物，例如粉煤灰和硅粉，是工业上的副产品，在改善建筑材料的性能中起着重要作用。在这项工作中，研究了掺入不同粉煤灰比例的粉煤灰和硅粉水泥浆的收缩率。通过压汞法（MIP）确定不同年龄样品的孔结构，并通过标准收缩试验测量收缩变形。讨论了矿物添加对收缩的影响。结果表明，粉煤灰对早期收缩具有显着效果。根据研究，提供了一些合适的建议，以优化材料的性能并减少收缩。

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  • 来源
  • 会议地点 Shanghai(CN)
  • 作者

    Yi Chen; Wu Yao; Dan Jin;

  • 作者单位

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

    Institute of Smart Construction Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shrinkage; Mineral addtion; Microstructure; Blended cement pastes;

    机译：收缩率矿物质添加；微观结构混合水泥浆;

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