废弃混凝土再生微粉活性激发及应用进展

Progress of activity stimulation and application of recycled fine powder from waste concrete

再生微粉是近年来研究的热点问题,尽管其具有水化活性,但活性仍然较低,提高再生微粉的活性是制约当前大规模应用的主要瓶颈。因此,系统分析了再生微粉的基本物理、化学性能,并总结了再生微粉的不同活性激发手段,对其激发机理进行了重点剖析。此外,还讨论了再生微粉的应用前景及进展,进一步分析讨论了再生微粉的环境和经济效益,为高附加值利用再生微粉提供参考。

Recycled fine powder is a hot research issue in recent years,despite its hydration activity,the activity is still low,and improving the activity of recycled fine powder is the main bottleneck restricting the current large-scale application.This paper systematically reviews the basic physical and chemical properties of recycled fine powder,and summarizes the different means of activity excitation of recycled fine powder,and focuses on its excitation mechanism.In addition,this paper also discusses the application prospects and progress of recycled fine powder,aiming to provide reference for the high value-added utilization of recycled fine powder.