The Effect of Composition on the Colloid Structure of Calcium Silicate Hydrate: Implications for Concrete Durability and a Basis for a Fundamental Understanding of Cement

成分对硅酸钙水合物胶体结构的影响：对混凝土耐久性的影响以及对水泥基本了解的基础

• 批准号: 0070922
• 负责人: Hamlin Jennings
• 金额: $ 35万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-15 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0070922&HistoricalAwards=false
• 关键词: Effect; Composition; Colloid; Structure; Calcium

0070922JenningsThe relationships between composition and structure of calcium silicate hydrate (C-S-H) will be established. C-S-H will be treated as a colloidal material that has been successfully modeled for one composition as being made up of particles with about 1 NM radius. They are clustered together to make a structure exhibiting particular surface areas and densities that depend on the size of the sample, i.e. the resolution of probe. Neutron scattering and gas sorption provide two powerful techniques for investigating the structure. The model will be extended to include C-S-H with a range of compositions, produced through the control of chemistry.

本文将建立水合硅酸钙（C-S-H）的组成与结构之间的关系。C-S-H将被视为一种胶体材料，这种胶体材料已被成功地建模为一种由半径约为1nm的颗粒组成的成分。它们聚集在一起，形成一种结构，显示出特定的表面积和密度，这取决于样品的大小，即探针的分辨率。中子散射和气体吸收为研究这种结构提供了两种强有力的技术。该模型将扩展到包括C-S-H和一系列通过化学控制产生的成分。