Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere
Traffic noise and solid waste pollution are two major problems that restrict urban development and affect urban environments. In this study, a new kind of cement-based material for sound barriers was prepared using industrial waste fly ash cenosphere to explore the material ratio of the sound absorp...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/3/322 |
| _version_ | 1797446956365119488 |
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| author | Hui Xie Yajing Li Ercan Kahya Bo Wang Xiyun Ge Guanda Li |
| author_facet | Hui Xie Yajing Li Ercan Kahya Bo Wang Xiyun Ge Guanda Li |
| author_sort | Hui Xie |
| collection | DOAJ |
| description | Traffic noise and solid waste pollution are two major problems that restrict urban development and affect urban environments. In this study, a new kind of cement-based material for sound barriers was prepared using industrial waste fly ash cenosphere to explore the material ratio of the sound absorption, sound insulation, and composite layers and to optimize the material’s properties. The research findings showed that the compressive strength had significant effects on the material properties of the sound absorption layer, with the optimal compressive strength range being 0.2–0.4 MPa. At 0.4 MPa, the material with an aggregate-to-binder ratio of 1.0 had the best comprehensive properties. The sound insulation layer had the best compressive strength of 29.00 MPa at a 45% fiber admixture. The composite had the best sound insulation when the thickness ratio of the sound absorption and insulation layers was 60:40, and the sound transmission loss was 38 dB. The embodied carbon (EC) and embodied energy (EE) of the new fly ash cenosphere across the whole life cycle were 57.57 kgCO<sub>2</sub>e and 477.08 MJ, respectively, which were 4.8−52.9% and 53.2−82.3% lower than other traditional sound barriers, respectively. Thus, they were environmentally friendly and had satisfactory energy-saving and environmental protection values. |
| first_indexed | 2024-03-09T13:48:02Z |
| format | Article |
| id | doaj.art-4887fd4c01ff4c6bbf69393ee3c4fbd5 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T13:48:02Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-4887fd4c01ff4c6bbf69393ee3c4fbd52023-11-30T20:54:55ZengMDPI AGBuildings2075-53092022-03-0112332210.3390/buildings12030322Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash CenosphereHui Xie0Yajing Li1Ercan Kahya2Bo Wang3Xiyun Ge4Guanda Li5Faculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, ChinaFaculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, ChinaDepartment of Technology of Building Materials and Construction, Tashkent Institute of Architecture and Constructions, Tashkent 10011, UzbekistanChina Construction Science & Technology Group Co., Ltd., Beijing 100070, ChinaFaculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, ChinaFaculty of Architecture and Urban Planning, Chongqing University, Chongqing 400045, ChinaTraffic noise and solid waste pollution are two major problems that restrict urban development and affect urban environments. In this study, a new kind of cement-based material for sound barriers was prepared using industrial waste fly ash cenosphere to explore the material ratio of the sound absorption, sound insulation, and composite layers and to optimize the material’s properties. The research findings showed that the compressive strength had significant effects on the material properties of the sound absorption layer, with the optimal compressive strength range being 0.2–0.4 MPa. At 0.4 MPa, the material with an aggregate-to-binder ratio of 1.0 had the best comprehensive properties. The sound insulation layer had the best compressive strength of 29.00 MPa at a 45% fiber admixture. The composite had the best sound insulation when the thickness ratio of the sound absorption and insulation layers was 60:40, and the sound transmission loss was 38 dB. The embodied carbon (EC) and embodied energy (EE) of the new fly ash cenosphere across the whole life cycle were 57.57 kgCO<sub>2</sub>e and 477.08 MJ, respectively, which were 4.8−52.9% and 53.2−82.3% lower than other traditional sound barriers, respectively. Thus, they were environmentally friendly and had satisfactory energy-saving and environmental protection values.https://www.mdpi.com/2075-5309/12/3/322fly ash cenospheresound barrieracoustic propertiesenvironmental impact assessment |
| spellingShingle | Hui Xie Yajing Li Ercan Kahya Bo Wang Xiyun Ge Guanda Li Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere Buildings fly ash cenosphere sound barrier acoustic properties environmental impact assessment |
| title | Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere |
| title_full | Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere |
| title_fullStr | Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere |
| title_full_unstemmed | Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere |
| title_short | Physical Properties and Environmental Impact of Sound Barrier Materials Based on Fly Ash Cenosphere |
| title_sort | physical properties and environmental impact of sound barrier materials based on fly ash cenosphere |
| topic | fly ash cenosphere sound barrier acoustic properties environmental impact assessment |
| url | https://www.mdpi.com/2075-5309/12/3/322 |
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