Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker
This study investigated the feasibility of using waste limestone sludge, waste stone sludge, iron oxide sludge, and spent catalyst as raw materials in the production of eco-cement. The compressive strength development of the Eco Cement-A (ECO-A) paste was similar to that of ordinary Portland cement...
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| Format: | Article |
| Language: | English |
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BMC
2017-09-01
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| Series: | Sustainable Environment Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468203916302710 |
| _version_ | 1811271763820019712 |
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| author | Kae-Long Lin Kang-Wei Lo Ming-Jui Hung Ta-Wui Cheng Yu-Min Chang |
| author_facet | Kae-Long Lin Kang-Wei Lo Ming-Jui Hung Ta-Wui Cheng Yu-Min Chang |
| author_sort | Kae-Long Lin |
| collection | DOAJ |
| description | This study investigated the feasibility of using waste limestone sludge, waste stone sludge, iron oxide sludge, and spent catalyst as raw materials in the production of eco-cement. The compressive strength development of the Eco Cement-A (ECO-A) paste was similar to that of ordinary Portland cement (OPC) pastes. The compressive strength development of the ECO-B paste was higher than that of OPC pastes. In addition, the C2S (Ca2SiO4, C2S) and C3S (Ca3SiO5) minerals in the eco-cement paste were continuously utilized to hydrate the Ca(OH)2 and calcium silicate hydrates gel (Ca6Si3O12·H2O, C–S–H) throughout the curing time. When ECO-C clinker contained 8% spent catalyst, the C3S mineral content decreased and C3A (3 CaO·Al2O3) content increased, thereby causing the structure to weaken and compressive strength to decrease. The results showed that the developed eco-cement with 4% spent catalyst possessed compressive strength properties similar to those of OPC pastes. |
| first_indexed | 2024-04-12T22:26:54Z |
| format | Article |
| id | doaj.art-16dfa085f7b1431bb22d795e2323a058 |
| institution | Directory Open Access Journal |
| issn | 2468-2039 |
| language | English |
| last_indexed | 2024-04-12T22:26:54Z |
| publishDate | 2017-09-01 |
| publisher | BMC |
| record_format | Article |
| series | Sustainable Environment Research |
| spelling | doaj.art-16dfa085f7b1431bb22d795e2323a0582022-12-22T03:14:06ZengBMCSustainable Environment Research2468-20392017-09-0127525125710.1016/j.serj.2017.05.001Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinkerKae-Long Lin0Kang-Wei Lo1Ming-Jui Hung2Ta-Wui Cheng3Yu-Min Chang4Department of Environmental Engineering, National Ilan University, Yilan 260, Taiwan, ROCDepartment of Environmental Engineering, National Ilan University, Yilan 260, Taiwan, ROCDepartment of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 243, TaiwanDepartment of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei City 106, TaiwanGraduate Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei City 106, TaiwanThis study investigated the feasibility of using waste limestone sludge, waste stone sludge, iron oxide sludge, and spent catalyst as raw materials in the production of eco-cement. The compressive strength development of the Eco Cement-A (ECO-A) paste was similar to that of ordinary Portland cement (OPC) pastes. The compressive strength development of the ECO-B paste was higher than that of OPC pastes. In addition, the C2S (Ca2SiO4, C2S) and C3S (Ca3SiO5) minerals in the eco-cement paste were continuously utilized to hydrate the Ca(OH)2 and calcium silicate hydrates gel (Ca6Si3O12·H2O, C–S–H) throughout the curing time. When ECO-C clinker contained 8% spent catalyst, the C3S mineral content decreased and C3A (3 CaO·Al2O3) content increased, thereby causing the structure to weaken and compressive strength to decrease. The results showed that the developed eco-cement with 4% spent catalyst possessed compressive strength properties similar to those of OPC pastes.http://www.sciencedirect.com/science/article/pii/S2468203916302710Spent catalystWaste sludgeEco-cementClinkerUtilize |
| spellingShingle | Kae-Long Lin Kang-Wei Lo Ming-Jui Hung Ta-Wui Cheng Yu-Min Chang Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker Sustainable Environment Research Spent catalyst Waste sludge Eco-cement Clinker Utilize |
| title | Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker |
| title_full | Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker |
| title_fullStr | Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker |
| title_full_unstemmed | Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker |
| title_short | Recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of Portland cement clinker |
| title_sort | recycling of spent catalyst and waste sludge from industry to substitute raw materials in the preparation of portland cement clinker |
| topic | Spent catalyst Waste sludge Eco-cement Clinker Utilize |
| url | http://www.sciencedirect.com/science/article/pii/S2468203916302710 |
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