Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio
This study aimed to investigate the potential use of carbon nanotubes (CNTs), which are an innovative construction material preferred by many researchers. Long-term microstructure enhancement and on-site application are major reasons to conduct research on CNT-cement composites; thus, a study on mec...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-10-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/9/21/4630 |
| _version_ | 1819136657840930816 |
|---|---|
| author | Sang-Hwa Jung Sungwoo Oh Sung-Wook Kim Jae-Heum Moon |
| author_facet | Sang-Hwa Jung Sungwoo Oh Sung-Wook Kim Jae-Heum Moon |
| author_sort | Sang-Hwa Jung |
| collection | DOAJ |
| description | This study aimed to investigate the potential use of carbon nanotubes (CNTs), which are an innovative construction material preferred by many researchers. Long-term microstructure enhancement and on-site application are major reasons to conduct research on CNT-cement composites; thus, a study on mechanical properties as well as the thermal conductivity of CNT-cement composites was carried out. As the CNT content increased, the thermal conductivity of CNT-cement composites was also enhanced. In addition, a couple of microstructure analyses such as isothermal calorimetry, thermal gravimetric analysis and SEM-EDS (Scanning Electron Microscope-Energy Dispersive X-ray Spectroscopy) for observing hydration reaction rate and types of hydration products were conducted to establish the advantage of CNT use in cement composites. Strength development of CNT-cement composites at early ages was slow, although eventually CNTs containing water developed equivalent level of strengths at last as internal curing effects. |
| first_indexed | 2024-12-22T10:38:28Z |
| format | Article |
| id | doaj.art-e07fc8b2bbb2470ab8f1ac299affcc30 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-22T10:38:28Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-e07fc8b2bbb2470ab8f1ac299affcc302022-12-21T18:29:07ZengMDPI AGApplied Sciences2076-34172019-10-01921463010.3390/app9214630app9214630Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder RatioSang-Hwa Jung0Sungwoo Oh1Sung-Wook Kim2Jae-Heum Moon3Yeongnam Division, Korea Conformity Laboratories; Daegu 42994, KoreaConstruction Technology Research Center, Korea Conformity Laboratories; Seoul 08503, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology; Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology; Goyang 10223, KoreaThis study aimed to investigate the potential use of carbon nanotubes (CNTs), which are an innovative construction material preferred by many researchers. Long-term microstructure enhancement and on-site application are major reasons to conduct research on CNT-cement composites; thus, a study on mechanical properties as well as the thermal conductivity of CNT-cement composites was carried out. As the CNT content increased, the thermal conductivity of CNT-cement composites was also enhanced. In addition, a couple of microstructure analyses such as isothermal calorimetry, thermal gravimetric analysis and SEM-EDS (Scanning Electron Microscope-Energy Dispersive X-ray Spectroscopy) for observing hydration reaction rate and types of hydration products were conducted to establish the advantage of CNT use in cement composites. Strength development of CNT-cement composites at early ages was slow, although eventually CNTs containing water developed equivalent level of strengths at last as internal curing effects.https://www.mdpi.com/2076-3417/9/21/4630cnt-cement compositesnano-materialsstrengthsthermal conductivitymicrostructures |
| spellingShingle | Sang-Hwa Jung Sungwoo Oh Sung-Wook Kim Jae-Heum Moon Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio Applied Sciences cnt-cement composites nano-materials strengths thermal conductivity microstructures |
| title | Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio |
| title_full | Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio |
| title_fullStr | Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio |
| title_full_unstemmed | Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio |
| title_short | Effects of CNT Dosages in Cement Composites on the Mechanical Properties and Hydration Reaction with Low Water-to-Binder Ratio |
| title_sort | effects of cnt dosages in cement composites on the mechanical properties and hydration reaction with low water to binder ratio |
| topic | cnt-cement composites nano-materials strengths thermal conductivity microstructures |
| url | https://www.mdpi.com/2076-3417/9/21/4630 |
| work_keys_str_mv | AT sanghwajung effectsofcntdosagesincementcompositesonthemechanicalpropertiesandhydrationreactionwithlowwatertobinderratio AT sungwoooh effectsofcntdosagesincementcompositesonthemechanicalpropertiesandhydrationreactionwithlowwatertobinderratio AT sungwookkim effectsofcntdosagesincementcompositesonthemechanicalpropertiesandhydrationreactionwithlowwatertobinderratio AT jaeheummoon effectsofcntdosagesincementcompositesonthemechanicalpropertiesandhydrationreactionwithlowwatertobinderratio |