摘要
研究了矿物掺合料的种类、掺量和组合对混凝土在等温干燥条件下内部相对湿度 (InternalRelativeHumidi ty ,IRH)的分布以及自干燥引起的IRH变化的影响。结果表明 ,由于不同矿物掺合料对混凝土水化速率与过程影响不同 ,对混凝土自干燥引起的IRH下降也不同。低水胶比、掺矿物掺合料的混凝土中IRH变化与分布不仅受水分扩散控制 。
The effects of types, content and combination of mineral additives on internal relative humidity (IRH)distribution of concrete in uniaxial isothermal drying condition and IRH change resulting from self-desiccation were investigated. The results indicate that, since different mineral additives affect the rate and process of concrete hydration differently. IRH reduction of concrete with them resulting from self-desiccation changes correspondingly. IRH change and distribution of concrete with w/B and mineral additives is mainly dependent on self-desiccation as well as moisture diffusion.
出处
《粉煤灰综合利用》
CAS
2003年第2期16-19,共4页
Fly Ash Comprehensive Utilization
基金
国家 973重大基础研究项目 (编号 :2 0 0 1CB61 0 70 4 )
同济大学工科基金资助
