Effect of SiO2 aerogel and perlite on properties of foamed concrete
Abstract To enhance the insulation performance, strength, and fire resistance performance of foamed concrete, this paper investigates the effects of incorporating nano-silica aerogel and expanded perlite. A comprehensive comparison and analysis were conducted on the dry density, water absorption, me...
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Nature Portfolio
2025-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-96026-2 |
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| author | Wanying Qu Kailu Liu Haoyang Zeng Qiuyan Hu Li Wang |
| author_facet | Wanying Qu Kailu Liu Haoyang Zeng Qiuyan Hu Li Wang |
| author_sort | Wanying Qu |
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| description | Abstract To enhance the insulation performance, strength, and fire resistance performance of foamed concrete, this paper investigates the effects of incorporating nano-silica aerogel and expanded perlite. A comprehensive comparison and analysis were conducted on the dry density, water absorption, mechanical performance, thermal conductivity, fire-resistant insulation, and microstructure of both Nano-SiO2 Aerogel Foamed Concrete (NSAFC) and Expanded Perlite Foamed Concrete (EPFC). The findings indicate that as the Nano-SiO2 Aerogel (NSA) content increases, the water absorption of the foamed concrete gradually rises. Conversely, the water absorption of the foamed concrete test blocks first increases and then decreases with an increase in Expanded Perlite (EP) content. It is noteworthy that, incorporating 10% NSA and EP reduces the dry density of foamed concrete by 12.7% and 7.8%, respectively. When EP content reaches 6%, the 28-d flexural and compressive strengths of the foamed concrete test blocks increase by 73.5% and 54.2%, respectively. Similarly, at NSA content of 6%, the 28-d flexural and compressive strengths increase by 70.5% and 39.6%, respectively. The fire-resistant insulation tests demonstrate that NSAFC exhibits superior thermal insulation and fire resistance performance compared to EPFC. Furthermore, SEM images demonstrate that the pore structure of NSAFC is more uniform. |
| format | Article |
| id | doaj-art-48bc791ef9514b0ca826beab2769b078 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-48bc791ef9514b0ca826beab2769b0782025-08-20T01:54:22ZengNature PortfolioScientific Reports2045-23222025-03-0115111010.1038/s41598-025-96026-2Effect of SiO2 aerogel and perlite on properties of foamed concreteWanying Qu0Kailu Liu1Haoyang Zeng2Qiuyan Hu3Li Wang4School of Urban Construction, Wuhan University of Science and TechnologySchool of Urban Construction, Wuhan University of Science and TechnologySchool of Urban Construction, Wuhan University of Science and TechnologyCollege of Resources and Environment Engineering, Wuhan University of Science and TechnologyCollege of Resources and Environment Engineering, Wuhan University of Science and TechnologyAbstract To enhance the insulation performance, strength, and fire resistance performance of foamed concrete, this paper investigates the effects of incorporating nano-silica aerogel and expanded perlite. A comprehensive comparison and analysis were conducted on the dry density, water absorption, mechanical performance, thermal conductivity, fire-resistant insulation, and microstructure of both Nano-SiO2 Aerogel Foamed Concrete (NSAFC) and Expanded Perlite Foamed Concrete (EPFC). The findings indicate that as the Nano-SiO2 Aerogel (NSA) content increases, the water absorption of the foamed concrete gradually rises. Conversely, the water absorption of the foamed concrete test blocks first increases and then decreases with an increase in Expanded Perlite (EP) content. It is noteworthy that, incorporating 10% NSA and EP reduces the dry density of foamed concrete by 12.7% and 7.8%, respectively. When EP content reaches 6%, the 28-d flexural and compressive strengths of the foamed concrete test blocks increase by 73.5% and 54.2%, respectively. Similarly, at NSA content of 6%, the 28-d flexural and compressive strengths increase by 70.5% and 39.6%, respectively. The fire-resistant insulation tests demonstrate that NSAFC exhibits superior thermal insulation and fire resistance performance compared to EPFC. Furthermore, SEM images demonstrate that the pore structure of NSAFC is more uniform.https://doi.org/10.1038/s41598-025-96026-2Foamed concrete porous materialNano-SiO2 aerogelExpanded perliteThermal conductivityMechanical property |
| spellingShingle | Wanying Qu Kailu Liu Haoyang Zeng Qiuyan Hu Li Wang Effect of SiO2 aerogel and perlite on properties of foamed concrete Scientific Reports Foamed concrete porous material Nano-SiO2 aerogel Expanded perlite Thermal conductivity Mechanical property |
| title | Effect of SiO2 aerogel and perlite on properties of foamed concrete |
| title_full | Effect of SiO2 aerogel and perlite on properties of foamed concrete |
| title_fullStr | Effect of SiO2 aerogel and perlite on properties of foamed concrete |
| title_full_unstemmed | Effect of SiO2 aerogel and perlite on properties of foamed concrete |
| title_short | Effect of SiO2 aerogel and perlite on properties of foamed concrete |
| title_sort | effect of sio2 aerogel and perlite on properties of foamed concrete |
| topic | Foamed concrete porous material Nano-SiO2 aerogel Expanded perlite Thermal conductivity Mechanical property |
| url | https://doi.org/10.1038/s41598-025-96026-2 |
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