The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs
This study investigated the effects of acid-treated MWCNTs on the workability, compressive and tensile strength, porosity, and microstructure of CNT/cement composites. While workability decreased with acid treatment of CNTs, compressive and tensile strength improved significantly. Strength was also...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/308725 |
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| author | Su-Tae Kang Jun-Yeong Seo Sun-Hong Park |
| author_facet | Su-Tae Kang Jun-Yeong Seo Sun-Hong Park |
| author_sort | Su-Tae Kang |
| collection | DOAJ |
| description | This study investigated the effects of acid-treated MWCNTs on the workability, compressive and tensile strength, porosity, and microstructure of CNT/cement composites. While workability decreased with acid treatment of CNTs, compressive and tensile strength improved significantly. Strength was also enhanced by using acid-treated CNTs alone, compared to using a surfactant with acid-treated CNTs. MIP analysis revealed that the porosity decreases from using acid-treated CNTs and that using acid-treated CNTs without a surfactant was more effective in reducing the size of micropores. A SEM analysis revealed improved CNT dispersion and dense hydration products in cement composites containing acid-treated CNTs. Ultimately, the use of acid-treated CNTs improved the CNT dispersion within CNT/cement composites, enhanced the pore structure, and formed denser hydration products around CNTs. |
| format | Article |
| id | doaj-art-a8f1f3658e544af0815f5627cd17353c |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a8f1f3658e544af0815f5627cd17353c2025-02-03T05:46:13ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/308725308725The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTsSu-Tae Kang0Jun-Yeong Seo1Sun-Hong Park2Department of Civil Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan 712-714, Republic of KoreaDepartment of Civil Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan 712-714, Republic of KoreaSsangyong Remicon Co., Ltd., 17-12, Goegok 4-gil, Haepyeong, Gumi 730-871, Republic of KoreaThis study investigated the effects of acid-treated MWCNTs on the workability, compressive and tensile strength, porosity, and microstructure of CNT/cement composites. While workability decreased with acid treatment of CNTs, compressive and tensile strength improved significantly. Strength was also enhanced by using acid-treated CNTs alone, compared to using a surfactant with acid-treated CNTs. MIP analysis revealed that the porosity decreases from using acid-treated CNTs and that using acid-treated CNTs without a surfactant was more effective in reducing the size of micropores. A SEM analysis revealed improved CNT dispersion and dense hydration products in cement composites containing acid-treated CNTs. Ultimately, the use of acid-treated CNTs improved the CNT dispersion within CNT/cement composites, enhanced the pore structure, and formed denser hydration products around CNTs.http://dx.doi.org/10.1155/2015/308725 |
| spellingShingle | Su-Tae Kang Jun-Yeong Seo Sun-Hong Park The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs Advances in Materials Science and Engineering |
| title | The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs |
| title_full | The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs |
| title_fullStr | The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs |
| title_full_unstemmed | The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs |
| title_short | The Characteristics of CNT/Cement Composites with Acid-Treated MWCNTs |
| title_sort | characteristics of cnt cement composites with acid treated mwcnts |
| url | http://dx.doi.org/10.1155/2015/308725 |
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