![]() Kang, Z.X., Song, R.X., Zhang, H.J.: Study on sound insulation performance of double-layer perforated panel under normal incidence waves. Gong, X.Y., Bustillo, J., Blanc, L., et al.: Acoustic properties study of porous materials with orthotropic symmetry and specific pore shapes-I. Ĭhen, X., Ma, W.T., Hao, Y.D., et al.: Analysis and optimization design for sound absorption performance of gradient elastic porous materials. ![]() Liu, X.W., Yu, C.L., Xin, F.X.: Gradually perforated porous materials backed with Helmholtz resonant cavity for broadband low-frequency sound absorption. Zhu, J.L., Sun, J., Tang, H.P., et al.: Gradient-structural optimization of metal fiber porous materials for sound absorption. Kima, B.S., Park, J.H.: Double resonant porous structure backed by air cavity for low frequency sound absorption improvement. Song, J.P.: The discussion of porous material air cavity and low frequency sound absorption effect. Sidorova, A., Vazquez-Ramonich, E., Barra-Bizinotto, M., et al.: Study of the recycled aggregates nature’s influence on the aggregate–cement paste interface and ITZ. Vikrant, T., Arun, S., Arijit, B.: Acoustic properties of cenosphere reinforced cement and asphalt concrete. Acoustic Elements of Railway Sound Barrier. TB/T 3122-2019: Chinese Railway Industry Standard. ISO 354:2003: Acoustics-Measurement of Sound Absorption in a Reverberation Room (2003) Light Weight Panels for Partition Wall Used in Buildings. GB/T 23451-2009: Chinese National standard. GB/T 30100-2013: Chinese National Standard. Pereira, M., Carbajo, J., Godinho, L., et al.: Improving the sound absorption behaviour of porous concrete using embedded resonant structures. Sheng, T.T., Hung, M.K., Azma, P., et al.: Sound absorption performance of modified concrete: a review. īoutin, C.: Acoustics of porous media with inner resonators. Wang, X.T., Ma, L.F., Wang, Y.S., et al.: Design of multilayer sound-absorbing composites with excellent sound absorption properties at medium and low frequency via constructing variable section cavities. Zhang, C.C., Gong, J.X., Li, H.Q., et al.: Fiber-based flexible composite with dual-gradient structure for sound insulation. Liu, X.W., Ma, X.W., Yu, C.L., et al.: Sound absorption of porous materials perforated with holes having gradually varying radii. Wu, H.Q., Zhang, T., Chun, Y.Y., et al.: Development of high performance cement-based sound absorbing haydite. Wu, H.Q., Zhang, T., Pan, R.J., et al.: Sintering-free preparation of porous ceramsite using low-temperature decomposing pore former and its sound-absorbing performance. Li, W.F., Luo, X.Y., Jin, X.L.: Effect of acoustic components on characteristics of ceramsite porous concrete. Luan, H.X., Wu, J., Zhu, W.X., et al.: Preparation and acoustic performance of recycled ceramsite concrete noise-absorbing plat. Gao, L.D., Fu, Q.X., Si, Y., et al.: Porous materials for sound absorption. Yoon, J., Kim, H., Koh, T., et al.: Microstructural characteristics of sound absorbable porous cement-based materials by incorporating natural fibers and aluminum powder. Ma, B.G., Jin, Z.H., Su, Y., et al.: Utilization of hemihydrate phosphogypsum for the preparation of porous sound absorbing material. Peng, L.M., Song, B.Q., Wang, J.F., Wang, D.: Mechanic and acoustic properties of the sound-absorbing material made from natural fiber and polyester. ![]() Kim, H., Hong, J., Pyo, S.: Acoustic characteristics of sound absorbable high performance concrete. Tao, Y., Ren, M., Zhang, H., et al.: Recent progress in acoustic materials and noise control strategies-a review. In addition, the physical structure models of ceramsite sound absorbing boards were established to illustrate the variation of mechanical properties and disclose the mechanism of sound absorption and insulation in the material. In terms of sound absorption and sound insulation properties, the overall performance of the double-layer board with reasonable gradient structure was better than that of the single-layer board. All ceramsite sound absorbing boards had compressive and flexural strengths of more than 3 MPa and 1 MPa, respectively, and also demonstrated good water resistance. The results show that the double-layer board with appropriateĮxhibited almost identical bulk density and mechanical strength to the single-layer board. The physical, mechanical and acoustic properties of these prepared ceramsite sound absorbing boards were studied, including the bulk density, compressive strength, flexural strength, softening coefficient, sound absorption coefficient and sound reduction index. In this work, ceramsite was utilized to fabricate the sound-absorbing boards, in which two types of structure were considered, specifically, single-layer board with homogenous structure and double-layer board with gradient structure.
0 Comments
Leave a Reply. |