硅灰添加剂的差异与水泥基材料细尺度微观结构演变的关系

Andrew J. Allen , Richard A. Livingston
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引用次数: 48

摘要

利用小角中子散射和超小角x射线散射研究了水泥水化过程中硅灰对水泥和混凝土微结构发育的影响。应用先前建立的基于分形的微结构模型,从小角散射数据中提取具有代表性的微结构参数。在水泥水化过程中,硅灰粒径分布中存在粗颗粒或结块颗粒与可能发生的有害微观结构演化之间建立了联系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Relationship between differences in silica fume additives and fine-scale microstructural evolution in cement based materials

The effects on the microstructural development of adding silica fume to cements and concretes during cement hydration have been studied using small-angle neutron scattering and ultrasmall-angle X-ray scattering. A previously developed fractal based microstructural model has been applied to extract representative microstructural parameters from the small-angle scattering data. A link has been established between the existence of coarse or agglomerated particles in the silica fume particle size distribution and possible deleterious microstructural evolution during cement hydration.

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