...
首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Microstructure Determination of Calcium-Silicate-Hydrate Globules by Small-Angle Neutron Scattering
【24h】

Microstructure Determination of Calcium-Silicate-Hydrate Globules by Small-Angle Neutron Scattering

机译:小角中子散射法测定硅酸钙水合物球的显微结构

获取原文
获取原文并翻译 | 示例
           

摘要

The basic building block of calcium-silicate-hydrate (C-S-H) gel, which is the major hydration product of a commercial Portland cement paste, is usually referred as "globule" in the Jennings' colloidal model-II developed for C—S-H. The detailed nanostructure of the globule is so far not given quantitatively. In this paper, we determine the structural parameters of the building block with good accuracy by small-angle neutron scattering technique probing an extended interval of the scattering vector, Q, from 0.015—1.0 A~(-1). In this Q-range an interlamellar peak at 0.65—0.80 A~(-1) is present, shifting as a function of the water content present in the C—S-H gel. This additional feature enables us to confirm the presence of a lamellar structure and determine the thicknesses of both the water and the hydrated calcium silicate layers respectively proper of the C—S—H globules.
机译:水合硅酸钙(C-S-H)凝胶的基本结构块,是商业硅酸盐水泥浆的主要水合产物,在为C-H开发的詹宁斯胶体模型II中通常称为“小球”。迄今为止,尚未定量给出球状体的详细纳米结构。在本文中,我们通过小角度中子散射技术,以0.015-1.0 A〜(-1)的扩展间隔探查了散射矢量Q的精确度,确定了构件的结构参数。在此Q范围内,存在一个在0.65-0.80 A〜(-1)的层间峰,该峰随CS凝胶中水含量的变化而变化。此附加功能使我们能够确认层状结构的存在,并确定分别适合于C–H–H小球的水层和水合硅酸钙层的厚度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号