کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
798723 | 1466766 | 2008 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Preparation of geopolymer from fluidized bed combustion bottom ash Preparation of geopolymer from fluidized bed combustion bottom ash](/preview/png/798723.png)
This study has shown that it is possible to use fluidized bed combustion bottom ash (FBC-BA) without any thermal activation as a partial- or full-replacement for kaolinitic raw material in geopolymerization. Test specimens prepared from FBC-BA have reached compressive strength of almost 50 MPa after 90 days of hardening. After 50 freeze-thaw cycles, the compressive strength of test specimens has not decrease below 80% of compressive strength of unaffected reference specimens, which represents an acceptable freeze-thaw resistance. Testing of wet-dry resistance has shown that wet-dry cycles cause an increase of the compressive strength values. Testing of acid resistance of prepared geopolymer specimens has shown that replacement of usual kaolinitic raw material by FBC-BA results in slight increase of leachability.
Journal: Journal of Materials Processing Technology - Volume 200, Issues 1–3, 8 May 2008, Pages 265–270