Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《CONCRETE》 2000-02
Add to Favorite Get Latest Update

The Green Agent of XF Dust Flyash Porous Concrete Products

Guo Yushun Liu Xiaobing〔  
The flyash porous concrete products at ordinary pressure have good gelation,save resources and energy and make use of industrial waste material,therefore can accord with continuously developing strategy.But its large shrinkage affects spread for application.This paper starts with the study of the mechanism as green agent in this paper,when 7% of XF was added the remarkable green effects produced:the compressive strength rises 49~88%,the shrinkage value reduces for every age,limit drying shrinkage ratio decreases 18%.The property of flyash porous concrete products obtains sublimation.According to chemical analysis and SEM figure observation show that:the mechanism of strengthening and reduced shrinkage is principaaly due to the micropowder action of XF dust,the action of its chemical composition and Ca(OH) 2 from flyash cementing material produces C S H gel not soluble in water,and produces E salt with high strength and microexpand. 〔
【CateGory Index】: TU528
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved