作　　者： ; ; ; ;

机构地区： 深圳大学建筑与土木工程学院

出　　处： 《混凝土》 2004年第4期45-47,共3页

摘　　要： 　采用玻璃砂浆棒法,试验研究了偏高岭土煅烧温度和掺量对抑制ASR的影响,并比较了偏高岭土、粉煤灰、硅灰和矿渣对ASR的抑制效果。试验结果表明:掺量为20%的偏高岭土具有了较好的抑制ASR能力;与硅灰(8%)、粉煤灰(15%)和矿渣(15%)相比,偏高岭土抑制ASR效果更好。 The influence of the calcining temperature and the content of metakaolin in controlling the ASR was researched and the relative effectiveness of metakaolin,silica fume,slag and fly ash in reducing expansion due to the ASR was compared by the method of the glass motor bar test.The results show that metakaolin which was calcined at 800℃ and replace 20% cement is very effective in controlling the ASR. And compared with silica fume(8%),slag(15%) and fly ash(15%)metakaolin is most effective.

关 键 词： 偏高岭土 碱 硅酸反应 矿物掺合料 玻璃砂浆棒法

领　　域： [建筑科学]