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Chasing the Bubble: Ultrasonic Dispersion and Attenuation from Cement with Superabsorbent Polymers to Shampoo.

作者信息

Lefever Gerlinde, Ospitia Nicolas, Serafin Dorian, Hemelrijck Danny Van, Aggelis Dimitrios G

机构信息

Department of Mechanics of Materials and Constructions (MeMC), Vrije Universiteit Brussel, 1050 Brussel, Belgium.

出版信息

Materials (Basel). 2020 Oct 13;13(20):4528. doi: 10.3390/ma13204528.

DOI:10.3390/ma13204528
PMID:33066010
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7599877/
Abstract

This study aims to experimentally investigate the ultrasonic behavior of fresh cement focusing on the contribution of the entrapped air bubbles. Frequency dispersion and attenuation carry delicate information that is not possible to gather by traditional ultrasonic pulse velocity. This is measured by simple indicators that quantify the frequency dependence of propagation velocity of longitudinal waves through fresh cementitious media. It seems that dispersion shows much stronger sensitivity to the microstructural processes, since the presence of superabsorbent polymers in mortar induces a large difference in dispersion parameters when compared to reference cement mortar, while only marginal difference in threshold-based pulse velocity. To reach this aim, references are taken from, and comparisons are made to other liquids in order first in order to validate the reliability of the methodology and to better understand the contribution of the cavities in the obtained dispersion and attenuation curves. Ultrasonic dispersion assessment of cementitious media has the potential to bring a lot of information on the microstructure of materials, as well as the ongoing processes.

摘要
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/1b39961ce464/materials-13-04528-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/bb31eb296ba9/materials-13-04528-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b13b1ccde7ec/materials-13-04528-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/a93615cec62c/materials-13-04528-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/da639b958f37/materials-13-04528-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/312f7c29e678/materials-13-04528-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/3d063ca8ac11/materials-13-04528-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/aa478da90027/materials-13-04528-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b45d1b5a6922/materials-13-04528-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/fb3efba6ac25/materials-13-04528-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/8daeb92c0590/materials-13-04528-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/1f2210a55d80/materials-13-04528-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b41920780189/materials-13-04528-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/73828f6c4375/materials-13-04528-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/bd0f6d545266/materials-13-04528-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/1b39961ce464/materials-13-04528-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/bb31eb296ba9/materials-13-04528-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b13b1ccde7ec/materials-13-04528-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/a93615cec62c/materials-13-04528-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/da639b958f37/materials-13-04528-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/312f7c29e678/materials-13-04528-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/3d063ca8ac11/materials-13-04528-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/aa478da90027/materials-13-04528-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b45d1b5a6922/materials-13-04528-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/fb3efba6ac25/materials-13-04528-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/8daeb92c0590/materials-13-04528-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/1f2210a55d80/materials-13-04528-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/b41920780189/materials-13-04528-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/73828f6c4375/materials-13-04528-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/bd0f6d545266/materials-13-04528-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fb27/7599877/1b39961ce464/materials-13-04528-g015.jpg

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The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media.弹性波无损检测技术对现代水泥基介质特性评估的贡献。
Sensors (Basel). 2020 May 23;20(10):2959. doi: 10.3390/s20102959.
3
Tests of Concrete Strength across the Thickness of Industrial Floor Using the Ultrasonic Method with Exponential Spot Heads.
采用带指数探头的超声法检测工业地坪厚度方向的混凝土强度
Materials (Basel). 2020 May 2;13(9):2118. doi: 10.3390/ma13092118.
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Recent advances of ultrasonic testing of cement based materials at early ages.水泥基材料早期超声检测的最新进展。
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Ultrasonic wave propagation in heterogeneous solid media: theoretical analysis and experimental validation.超声波在非均匀固体介质中的传播：理论分析与实验验证。
Ultrasonics. 2006 Feb;44(2):200-10. doi: 10.1016/j.ultras.2005.11.002. Epub 2005 Dec 13.
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Experimental study of wave dispersion and attenuation in concrete.混凝土中波的色散与衰减的试验研究
Ultrasonics. 2005 Jun;43(7):584-95. doi: 10.1016/j.ultras.2004.12.001. Epub 2004 Dec 14.
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Differential forms of the Kramers-Krönig dispersion relations.克莱默斯-克勒尼希色散关系的微分形式。
IEEE Trans Ultrason Ferroelectr Freq Control. 2003 Jan;50(1):68-76. doi: 10.1109/tuffc.2003.1176526.
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Attenuation and dispersion of sound in dilute suspensions of spherical particles.球形颗粒稀悬浮液中声音的衰减与散射
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