Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors
Mortar thermal storage layers incorporating phase change material (PCM) can improve the thermal performance of radiant floors in buildings, reduce indoor temperature fluctuations and thus provide further savings in building heating energy consumption, offering great potential for the application of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509524001098 |
| _version_ | 1797316786554667008 |
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| author | Guo Li Guoqiang Xu Jintao Zhang |
| author_facet | Guo Li Guoqiang Xu Jintao Zhang |
| author_sort | Guo Li |
| collection | DOAJ |
| description | Mortar thermal storage layers incorporating phase change material (PCM) can improve the thermal performance of radiant floors in buildings, reduce indoor temperature fluctuations and thus provide further savings in building heating energy consumption, offering great potential for the application of active thermal energy storage systems. This study combines slag cement and microencapsulated phase change materials as cementitious composites for heat storage mortars with the aim of determining the addition ratio of phase change materials in slag cement mortars, thereby expanding the practical application of PCM mortars in radiant floors. For this purpose, slag cement mortar blocks containing microencapsulated phase change materials were prepared to further evaluate their thermal and mechanical properties. This involves incorporating PCM particles from 0% to 15% and adjusting the water content during the initial mixing stages. The characterization results reveal that the inclusion of PCM particles in slag cement mortar significantly affects its thermal and mechanical properties. Notably, each 1% increment in PCM particles reduces bulk density, compressive strength, and thermal conductivity of the mortar by 2%, 24%, and 9%, respectively. SSC3 specimens (with a PCM ratio of 1.97 wt%) showed promising thermal and mechanical properties and could be a thermally enhanced building material for the design of thermal storage layers in radiant floor heating systems. |
| first_indexed | 2024-03-08T03:24:24Z |
| format | Article |
| id | doaj.art-6010642ce31f4a578dc1d9bd8ddd5850 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-08T03:24:24Z |
| publishDate | 2024-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-6010642ce31f4a578dc1d9bd8ddd58502024-02-12T04:06:32ZengElsevierCase Studies in Construction Materials2214-50952024-07-0120e02958Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floorsGuo Li0Guoqiang Xu1Jintao Zhang2School of Architecture, Inner Mongolia University of Technology, Hohhot 010051, China; Green Building Autonomous Region Key Laboratory of Higher Education, Hohhot 010051, ChinaSchool of Architecture, Inner Mongolia University of Technology, Hohhot 010051, China; Green Building Autonomous Region Key Laboratory of Higher Education, Hohhot 010051, China; Engineering Technology and Research Center for Green Buildings of Inner Mongolia, Hohhot 010051, China; Corresponding author at: School of Architecture, Inner Mongolia University of Technology, Hohhot 010051, China.School of Architecture, Inner Mongolia University of Technology, Hohhot 010051, China; Engineering Technology and Research Center for Green Buildings of Inner Mongolia, Hohhot 010051, ChinaMortar thermal storage layers incorporating phase change material (PCM) can improve the thermal performance of radiant floors in buildings, reduce indoor temperature fluctuations and thus provide further savings in building heating energy consumption, offering great potential for the application of active thermal energy storage systems. This study combines slag cement and microencapsulated phase change materials as cementitious composites for heat storage mortars with the aim of determining the addition ratio of phase change materials in slag cement mortars, thereby expanding the practical application of PCM mortars in radiant floors. For this purpose, slag cement mortar blocks containing microencapsulated phase change materials were prepared to further evaluate their thermal and mechanical properties. This involves incorporating PCM particles from 0% to 15% and adjusting the water content during the initial mixing stages. The characterization results reveal that the inclusion of PCM particles in slag cement mortar significantly affects its thermal and mechanical properties. Notably, each 1% increment in PCM particles reduces bulk density, compressive strength, and thermal conductivity of the mortar by 2%, 24%, and 9%, respectively. SSC3 specimens (with a PCM ratio of 1.97 wt%) showed promising thermal and mechanical properties and could be a thermally enhanced building material for the design of thermal storage layers in radiant floor heating systems.http://www.sciencedirect.com/science/article/pii/S2214509524001098Thermal and mechanical characteristicsPhase change materialsThermal energy storageEnvironmental benefits |
| spellingShingle | Guo Li Guoqiang Xu Jintao Zhang Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors Case Studies in Construction Materials Thermal and mechanical characteristics Phase change materials Thermal energy storage Environmental benefits |
| title | Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors |
| title_full | Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors |
| title_fullStr | Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors |
| title_full_unstemmed | Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors |
| title_short | Experimental investigation of thermal and mechanical characteristics of slag cement mortars with PCM for radiant floors |
| title_sort | experimental investigation of thermal and mechanical characteristics of slag cement mortars with pcm for radiant floors |
| topic | Thermal and mechanical characteristics Phase change materials Thermal energy storage Environmental benefits |
| url | http://www.sciencedirect.com/science/article/pii/S2214509524001098 |
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