Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration
This article investigated the potential of fly ash (FA)/blast furnace slag- (BFS-) based geopolymer as a novel backfilling material. The effects of NaOH concentration and FA/BFS mass ratio were explored through XRD, FTIR, and TG-DTG analyses. The results indicated that the reaction products and stre...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2028109 |
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| author | Jingping Qiu Yingliang Zhao Jun Xing Xiaogang Sun |
| author_facet | Jingping Qiu Yingliang Zhao Jun Xing Xiaogang Sun |
| author_sort | Jingping Qiu |
| collection | DOAJ |
| description | This article investigated the potential of fly ash (FA)/blast furnace slag- (BFS-) based geopolymer as a novel backfilling material. The effects of NaOH concentration and FA/BFS mass ratio were explored through XRD, FTIR, and TG-DTG analyses. The results indicated that the reaction products and strengths of geopolymer depended on the NaOH concentration and types of source materials. Slump, final setting time, and setting ratio increased as a function of FA content. However, the increase in FA content reduced the compressive strength and microstructure of the backfilling material (BM) due to the lower reactivity than BFS. Microstructure analysis reveals that the matrix tends to be denser with the BFS content and NaOH concentration increase. |
| format | Article |
| id | doaj-art-8da88135f361404c8c6a99a31edf0721 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-8da88135f361404c8c6a99a31edf07212025-08-20T03:37:54ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/20281092028109Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator ConcentrationJingping Qiu0Yingliang Zhao1Jun Xing2Xiaogang Sun3College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaCollege of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaThis article investigated the potential of fly ash (FA)/blast furnace slag- (BFS-) based geopolymer as a novel backfilling material. The effects of NaOH concentration and FA/BFS mass ratio were explored through XRD, FTIR, and TG-DTG analyses. The results indicated that the reaction products and strengths of geopolymer depended on the NaOH concentration and types of source materials. Slump, final setting time, and setting ratio increased as a function of FA content. However, the increase in FA content reduced the compressive strength and microstructure of the backfilling material (BM) due to the lower reactivity than BFS. Microstructure analysis reveals that the matrix tends to be denser with the BFS content and NaOH concentration increase.http://dx.doi.org/10.1155/2019/2028109 |
| spellingShingle | Jingping Qiu Yingliang Zhao Jun Xing Xiaogang Sun Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration Advances in Materials Science and Engineering |
| title | Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration |
| title_full | Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration |
| title_fullStr | Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration |
| title_full_unstemmed | Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration |
| title_short | Fly Ash/Blast Furnace Slag-Based Geopolymer as a Potential Binder for Mine Backfilling: Effect of Binder Type and Activator Concentration |
| title_sort | fly ash blast furnace slag based geopolymer as a potential binder for mine backfilling effect of binder type and activator concentration |
| url | http://dx.doi.org/10.1155/2019/2028109 |
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