期刊文献+

Concrete with Highly Active Rice Husk Ash

Concrete with Highly Active Rice Husk Ash
下载PDF
导出
摘要 The overall aim was to investigate the effect of highly active rice husk ash (RHA) produced by an industrial furnace on some properties of concrete. The strength, pore volume and pore distribution of concrete and the Ca(OH)-2 content in concrete were investigated by JIS A 1108 (Method of test for compressive strength of concrete), a mercury instrument porosimeter, and the thermogravimetric analysis, respectively. The results show that,with RHA replacement of cement,the compressive strength of concrete is increased evidently;the average pore radius of concrete is greatly decreased, especially the portion of the pores greater than 20nm in radius is decreased while the amount of smaller pores is increased, and the more the RHA replacement, the less the amount of Ca(OH)-2 in concrete. The latter two results are the main reasons for the strength enhancement of concrete. The overall aim was to investigate the effect of highly active rice husk ash (RHA) produced by an industrial furnace on some properties of concrete. The strength, pore volume and pore distribution of concrete and the Ca(OH)-2 content in concrete were investigated by JIS A 1108 (Method of test for compressive strength of concrete), a mercury instrument porosimeter, and the thermogravimetric analysis, respectively. The results show that,with RHA replacement of cement,the compressive strength of concrete is increased evidently;the average pore radius of concrete is greatly decreased, especially the portion of the pores greater than 20nm in radius is decreased while the amount of smaller pores is increased, and the more the RHA replacement, the less the amount of Ca(OH)-2 in concrete. The latter two results are the main reasons for the strength enhancement of concrete.
作者 冯庆革
出处 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2004年第3期74-77,共4页 武汉理工大学学报(材料科学英文版)
基金 FundedbytheNational"86 3"ResearchProjectofChina(2 0 0 2AA335 0 )andtheHigh levelUniversityConstrucrionProjectofSouthChinaUniversityofChina(D6 5 80 )
关键词 rice husk ash pore structure pozzolanic activity CONCRETE rice husk ash pore structure pozzolanic activity concrete
  • 相关文献

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部