Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste
The use of Na2CO3 to improve the mechanical properties of high-volume slag cement (HVSC) is experimentally investigated in this study. Ordinary Portland cement (OPC) was replaced with 50, 60, 70, 80, and 90% ground-granulated blast-furnace slag (GGBFS) by weight. Na2CO3 was added at 0, 1, 2, 3, 4, a...
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/8905194 |
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| author | Taewan Kim Yubin Jun |
| author_facet | Taewan Kim Yubin Jun |
| author_sort | Taewan Kim |
| collection | DOAJ |
| description | The use of Na2CO3 to improve the mechanical properties of high-volume slag cement (HVSC) is experimentally investigated in this study. Ordinary Portland cement (OPC) was replaced with 50, 60, 70, 80, and 90% ground-granulated blast-furnace slag (GGBFS) by weight. Na2CO3 was added at 0, 1, 2, 3, 4, and 5 wt.% of HVSC (OPC + GGBFS). The compressive strength, water absorption, ultrasonic pulse velocity, dry shrinkage, and X-ray diffraction spectra of the Na2CO3-activated HVSC pastes were analyzed. The results indicate that Na2CO3 was effective for improving the strength of HVSC samples at both early and later ages. There was a trend of increasing HVSC sample strength with increasing Na2CO3 content. The 5% Na2CO3-activated HVSC (50% OPC + 50% GGBFS) paste had the best combination of early to later-age strength development and exhibited the highest UPV and the lowest water absorption among the Na2CO3-activated HVSC samples at later age. |
| format | Article |
| id | doaj-art-d76b4cb69e1a43238440fa6fe96efbcd |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
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| series | Advances in Civil Engineering |
| spelling | doaj-art-d76b4cb69e1a43238440fa6fe96efbcd2025-08-20T02:19:34ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/89051948905194Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement PasteTaewan Kim0Yubin Jun1Department of Civil Engineering, Pusan National University, Busan 46241, Republic of KoreaSchool of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of KoreaThe use of Na2CO3 to improve the mechanical properties of high-volume slag cement (HVSC) is experimentally investigated in this study. Ordinary Portland cement (OPC) was replaced with 50, 60, 70, 80, and 90% ground-granulated blast-furnace slag (GGBFS) by weight. Na2CO3 was added at 0, 1, 2, 3, 4, and 5 wt.% of HVSC (OPC + GGBFS). The compressive strength, water absorption, ultrasonic pulse velocity, dry shrinkage, and X-ray diffraction spectra of the Na2CO3-activated HVSC pastes were analyzed. The results indicate that Na2CO3 was effective for improving the strength of HVSC samples at both early and later ages. There was a trend of increasing HVSC sample strength with increasing Na2CO3 content. The 5% Na2CO3-activated HVSC (50% OPC + 50% GGBFS) paste had the best combination of early to later-age strength development and exhibited the highest UPV and the lowest water absorption among the Na2CO3-activated HVSC samples at later age.http://dx.doi.org/10.1155/2018/8905194 |
| spellingShingle | Taewan Kim Yubin Jun Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste Advances in Civil Engineering |
| title | Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste |
| title_full | Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste |
| title_fullStr | Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste |
| title_full_unstemmed | Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste |
| title_short | Mechanical Properties of Na2CO3-Activated High-Volume GGBFS Cement Paste |
| title_sort | mechanical properties of na2co3 activated high volume ggbfs cement paste |
| url | http://dx.doi.org/10.1155/2018/8905194 |
| work_keys_str_mv | AT taewankim mechanicalpropertiesofna2co3activatedhighvolumeggbfscementpaste AT yubinjun mechanicalpropertiesofna2co3activatedhighvolumeggbfscementpaste |