Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM
The present study aims to investigate the impact of thermal energy storage aggregate (TESA) and nano-titanium (NT) on properties of structural concrete. TESA was made of scoria encapsulated with phase change materials (PCMs). Coarse aggregates were replaced by TESA at 100% by volume of aggregate and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/24/7/1360 |
| _version_ | 1811298305360003072 |
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| author | Ehsan Mohseni Waiching Tang Shanyong Wang |
| author_facet | Ehsan Mohseni Waiching Tang Shanyong Wang |
| author_sort | Ehsan Mohseni |
| collection | DOAJ |
| description | The present study aims to investigate the impact of thermal energy storage aggregate (TESA) and nano-titanium (NT) on properties of structural concrete. TESA was made of scoria encapsulated with phase change materials (PCMs). Coarse aggregates were replaced by TESA at 100% by volume of aggregate and NT was added at 5% by weight of cement. Compressive strength, probability of corrosion, thermal performance, and microstructure properties were studied. The results indicated that the presence of TESA reduced the compressive strength of concrete, although the strength was still high enough to be used as structural concrete. The use of TESA significantly improved the thermal performance of concrete, and slightly improved the resistance of corrosion in concrete. The thermal test results showed that TESA concrete reduces the peak temperature by 2 °C compared to the control. The addition of NT changed the microstructure of concrete, which resulted in higher compressive strength. Additionally, the use of NT further enhanced the thermal performance of TESA concrete by reducing the probability of corrosion remarkably. These results confirmed the crucial role of NT in improving the permeability and the thermal conductivity of mixtures containing PCM. In other words, the charging and discharging of TESA was enhanced with the presence of NT in the mixture. |
| first_indexed | 2024-04-13T06:17:29Z |
| format | Article |
| id | doaj.art-ba8143ff6b004eafbe8fd4b428af64e4 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-13T06:17:29Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-ba8143ff6b004eafbe8fd4b428af64e42022-12-22T02:58:47ZengMDPI AGMolecules1420-30492019-04-01247136010.3390/molecules24071360molecules24071360Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCMEhsan Mohseni0Waiching Tang1Shanyong Wang2School of Architecture and Built Environment, the University of Newcastle, Callaghan, NSW 2308, AustraliaSchool of Architecture and Built Environment, the University of Newcastle, Callaghan, NSW 2308, AustraliaARC Centre of Excellence for Geotechnical Science and Engineering, the University of Newcastle, Callaghan, NSW 2308, AustraliaThe present study aims to investigate the impact of thermal energy storage aggregate (TESA) and nano-titanium (NT) on properties of structural concrete. TESA was made of scoria encapsulated with phase change materials (PCMs). Coarse aggregates were replaced by TESA at 100% by volume of aggregate and NT was added at 5% by weight of cement. Compressive strength, probability of corrosion, thermal performance, and microstructure properties were studied. The results indicated that the presence of TESA reduced the compressive strength of concrete, although the strength was still high enough to be used as structural concrete. The use of TESA significantly improved the thermal performance of concrete, and slightly improved the resistance of corrosion in concrete. The thermal test results showed that TESA concrete reduces the peak temperature by 2 °C compared to the control. The addition of NT changed the microstructure of concrete, which resulted in higher compressive strength. Additionally, the use of NT further enhanced the thermal performance of TESA concrete by reducing the probability of corrosion remarkably. These results confirmed the crucial role of NT in improving the permeability and the thermal conductivity of mixtures containing PCM. In other words, the charging and discharging of TESA was enhanced with the presence of NT in the mixture.https://www.mdpi.com/1420-3049/24/7/1360phase change materialsthermal energy storage aggregatesnano-titaniumaccelerated corrosion testthermal conductivity |
| spellingShingle | Ehsan Mohseni Waiching Tang Shanyong Wang Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM Molecules phase change materials thermal energy storage aggregates nano-titanium accelerated corrosion test thermal conductivity |
| title | Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM |
| title_full | Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM |
| title_fullStr | Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM |
| title_full_unstemmed | Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM |
| title_short | Investigation of the Role of Nano-Titanium on Corrosion and Thermal Performance of Structural Concrete with Macro-Encapsulated PCM |
| title_sort | investigation of the role of nano titanium on corrosion and thermal performance of structural concrete with macro encapsulated pcm |
| topic | phase change materials thermal energy storage aggregates nano-titanium accelerated corrosion test thermal conductivity |
| url | https://www.mdpi.com/1420-3049/24/7/1360 |
| work_keys_str_mv | AT ehsanmohseni investigationoftheroleofnanotitaniumoncorrosionandthermalperformanceofstructuralconcretewithmacroencapsulatedpcm AT waichingtang investigationoftheroleofnanotitaniumoncorrosionandthermalperformanceofstructuralconcretewithmacroencapsulatedpcm AT shanyongwang investigationoftheroleofnanotitaniumoncorrosionandthermalperformanceofstructuralconcretewithmacroencapsulatedpcm |