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硅酸盐水泥中硫酸盐类型与作用

DOI: 10.7521/j.issn.0454-5648.2014.02.6

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Abstract:

硅酸盐水泥中硫酸盐含量虽然很低,但类型众多且作用复杂,细分硫酸盐类型与作用有利于水泥的生产和应用。通过归纳国内外有关硅酸盐水泥中的硫酸盐类型和作用的研究结果,分析了硅酸盐水泥中不同来源硫酸盐的含量变化情况和值得关注的问题。结果表明硅酸盐水泥来源于熟料和混合材中的原生硫酸盐含量有明显增加趋势;目前水泥SO3含量较低且未区分原生硫酸盐,既不利于发挥硫酸盐的积极作用也不能避免硫酸盐潜在危害;随测试技术的发展,可对水泥中不同类型硫酸盐的作用进行分析。认为我国应从水泥应用角度,加强对硅酸盐水泥中硫酸盐类型和作用的基础理论和应用研究,有利于提高水泥性能和扩大利用高硫酸盐含量的废渣。

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