高钙粉煤灰与矿渣的复合及大掺量用于高性能混凝土的研究

Study on Blend Mineral Admixture of High-lime Fly-ash with Slag and Its Application in HPC with Large Content

根据对上海三家电厂排放的高钙灰的活性和安定性的试验结果 ,提出了对含有较高游离氧化钙含量的高钙灰的改性工艺及其可行性 ,并将改性后的高钙灰大掺量用于高性能混凝土。结果显示 :经改性处理后的高钙灰不仅能提高混凝土的耐久性 。

Besed on the experimental results of activity and soundness of the high-lime fly ash, discharged from three power stations in Shanghai, a modified process and its feasibility for original high-lime fly ash with the higher free-CaO content has been put forward. The study on performances of HPC containing this kind of the modified high-lime fly was carried out. The results show that the modified high-lime fly ash not only can enhance the durability of concrete, but also get a hug economic effect and social benefits.