Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 796 - 802 |
| Number of pages | 7 |
| Journal | Cement and Concrete Research |
| Volume | 35 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2005 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- mixture proportioning
- admixtures
- ash
- gasification
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Use of gasification residues in aerated autoclaved concrete. / Holt, Erika (Corresponding Author); Raivio, Paula.
In: Cement and Concrete Research, Vol. 35, No. 4, 2005, p. 796 - 802.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Use of gasification residues in aerated autoclaved concrete
AU - Holt, Erika
AU - Raivio, Paula
PY - 2005
Y1 - 2005
N2 - Two fine-grained residues produced by gasification of wastes were tested for their suitability in aerated autoclaved concrete (AAC). AAC typically has additional aluminium powder added to the raw ingredients to facilitate the formation of small gas bubbles which provide a low-density product. Both gasification residues had high amounts of metallic aluminium and thus were well suited for this application. Studies were conducted to determine whether the residue addition would eliminate the need for the extra aluminium powder for creating air voids. Simultaneously, the residues replaced some of the aggregate ground in the process, thus enabling savings in energy consumption. Initial laboratory tests determined how much residue could be added and what type of concrete mixture proportioning was needed. Multiple properties were tested on AAC with 10% residue addition, with and without the additional aluminium powder. After laboratory investigations, full-scale tests were done at the Siporex AAC factory in Finland. These tests revealed that the residues offer a promising resource for economic production of AAC without detrimental effects to the final products.
AB - Two fine-grained residues produced by gasification of wastes were tested for their suitability in aerated autoclaved concrete (AAC). AAC typically has additional aluminium powder added to the raw ingredients to facilitate the formation of small gas bubbles which provide a low-density product. Both gasification residues had high amounts of metallic aluminium and thus were well suited for this application. Studies were conducted to determine whether the residue addition would eliminate the need for the extra aluminium powder for creating air voids. Simultaneously, the residues replaced some of the aggregate ground in the process, thus enabling savings in energy consumption. Initial laboratory tests determined how much residue could be added and what type of concrete mixture proportioning was needed. Multiple properties were tested on AAC with 10% residue addition, with and without the additional aluminium powder. After laboratory investigations, full-scale tests were done at the Siporex AAC factory in Finland. These tests revealed that the residues offer a promising resource for economic production of AAC without detrimental effects to the final products.
KW - mixture proportioning
KW - admixtures
KW - ash
KW - gasification
U2 - 10.1016/j.cemconres.2004.05.005
DO - 10.1016/j.cemconres.2004.05.005
M3 - Article
VL - 35
SP - 796
EP - 802
JO - Cement and Concrete Research
JF - Cement and Concrete Research
SN - 0008-8846
IS - 4
ER -