长江科学院院报 ›› 2019, Vol. 36 ›› Issue (1): 127-133.DOI: 10.11988/ckyyb.20170736

• 水工结构与材料 • 上一篇    下一篇

碱对水泥基材料水化及水化产物的影响研究综述

李洋1, 王述银1, 殷海波1, 何真2   

  1. 1.长江科学院 工程质量检测中心,武汉 430072;
    2.武汉大学 水利水电学院,武汉 430071
  • 收稿日期:2017-05-26 出版日期:2019-01-01 发布日期:2019-01-17
  • 作者简介:李 洋(1986-),男,湖北仙桃人,工程师,博士,主要从事水泥化学及水泥基耐久性研究。E-mail:liyang@mail.crsri.cn
  • 基金资助:
    中央级公益性科研院所基本科研项目(CKSF2017034/GC,CKSF2017032/GC)

Review on the Influence of Alkali on Hydration and Hydration Products of Cement-based Materials

LI Yang1 , WANG Shu-yin1, YIN Hai-bo1, HE Zhen2   

  1. 1.Engineering Quality Detection Center, Yangtze River Scientific Research Institute, Wuhan 430072, China;
    2.School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430071, China
  • Received:2017-05-26 Online:2019-01-01 Published:2019-01-17

摘要: 综述了碱以不同碱金属离子存在形式和结合不同阴离子存在形式对水泥基材料水化特性的影响,并基于水泥基材料水化产物微结构及组成,分析对比了碱与水泥基材料水化产物的相互作用。结果表明:根据碱存在形式的不同,碱对水泥基材料水化特性的影响表现出较大差异,而碱在改变水泥水化产物结构和组成的同时,水化产物也有选择性地对碱进行吸收固化,进而使水泥基材料表现出不同宏观性能。分析结果同时说明将水泥基材料中的碱含量以当量碱含量考虑存在一定不足,为精细化控制水泥基材料的性能,碱存在形式的影响不可忽略。

关键词: 碱金属离子, 水泥基材料, 水化产物, 微结构, 阴离子, 存在形式

Abstract: The effects of alkali as different alkali metal ions and as combined with different anions on the hydration characteristics of cement-based materials are reviewed. Besides, in the light of the microstructure and composition of hydration products of cement-based materials, the interaction between alkali and hydration products of cement-based materials are analyzed and compared. The effects of alkali on the hydration characteristics of cement-based materials are different according to different forms of alkali. Alkali changes the structure and composition of cement hydration products, and hydration products in turn absorb hydration products selectively, and thus the cement-based materials exhibit different macro-properties. Moreover, considering the equivalent weight of alkali content as the alkali content in cement-based material is of some deficiencies. Therefore, the effect of the alkali-based form cannot be neglected for the fine control of the performance of cement-based material.

Key words: alkali metal ions, cement-based materials, hydration products, microstructure, anions, forms of existence

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