Ultrasonic phase velocity of carbonated cement paste probes

A. Villarreal; M. Cosmes-López; F. M. León-Martínez; F. Castellanos; S. E. Solis-Najera; L. Medina

doi:10.1016/j.apacoust.2019.04.011

Ultrasonic phase velocity of carbonated cement paste probes

A. Villarreal, M. Cosmes-López, F. M. León-Martínez, F. Castellanos, S. E. Solis-Najera, L. Medina

Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional (CIIDIR),Unidad Oaxaca

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The carbonation process in concrete is due to the interaction of the cement paste with atmospheric carbon dioxide modifying the cementitious matrix microstructure and its elastic properties, affecting its durability as a result of formed microcracks and chips within the concrete structure. The effects of this chemical reaction can be monitored using ultrasonic non destructive technique based on the scattering of the incident pulse. Acoustic phase velocity analysis was carried out on acquired signals coming from cement paste specimens of different water-cement ratios, during controlled carbonation process. The results show that the acoustic dispersion increases as a function of CO₂ exposition time, where the microstructure of 0.6 water-cement ratio probes react faster to the carbonation. These results are in accordance with the experimental carbonation index, obtained by the well known Fourier Transform Infrared Spectroscopy technique.

Original language	English
Pages (from-to)	129-134
Number of pages	6
Journal	Applied Acoustics
Volume	154
DOIs	https://doi.org/10.1016/j.apacoust.2019.04.011
State	Published - Nov 2019

Keywords

Carbonation in cement paste
Ultrasonic phase velocity

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10.1016/j.apacoust.2019.04.011

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title = "Ultrasonic phase velocity of carbonated cement paste probes",

abstract = "The carbonation process in concrete is due to the interaction of the cement paste with atmospheric carbon dioxide modifying the cementitious matrix microstructure and its elastic properties, affecting its durability as a result of formed microcracks and chips within the concrete structure. The effects of this chemical reaction can be monitored using ultrasonic non destructive technique based on the scattering of the incident pulse. Acoustic phase velocity analysis was carried out on acquired signals coming from cement paste specimens of different water-cement ratios, during controlled carbonation process. The results show that the acoustic dispersion increases as a function of CO2 exposition time, where the microstructure of 0.6 water-cement ratio probes react faster to the carbonation. These results are in accordance with the experimental carbonation index, obtained by the well known Fourier Transform Infrared Spectroscopy technique.",

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doi = "10.1016/j.apacoust.2019.04.011",

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T1 - Ultrasonic phase velocity of carbonated cement paste probes

AU - Villarreal, A.

AU - Cosmes-López, M.

AU - León-Martínez, F. M.

AU - Castellanos, F.

AU - Solis-Najera, S. E.

AU - Medina, L.

PY - 2019/11

Y1 - 2019/11

N2 - The carbonation process in concrete is due to the interaction of the cement paste with atmospheric carbon dioxide modifying the cementitious matrix microstructure and its elastic properties, affecting its durability as a result of formed microcracks and chips within the concrete structure. The effects of this chemical reaction can be monitored using ultrasonic non destructive technique based on the scattering of the incident pulse. Acoustic phase velocity analysis was carried out on acquired signals coming from cement paste specimens of different water-cement ratios, during controlled carbonation process. The results show that the acoustic dispersion increases as a function of CO2 exposition time, where the microstructure of 0.6 water-cement ratio probes react faster to the carbonation. These results are in accordance with the experimental carbonation index, obtained by the well known Fourier Transform Infrared Spectroscopy technique.

AB - The carbonation process in concrete is due to the interaction of the cement paste with atmospheric carbon dioxide modifying the cementitious matrix microstructure and its elastic properties, affecting its durability as a result of formed microcracks and chips within the concrete structure. The effects of this chemical reaction can be monitored using ultrasonic non destructive technique based on the scattering of the incident pulse. Acoustic phase velocity analysis was carried out on acquired signals coming from cement paste specimens of different water-cement ratios, during controlled carbonation process. The results show that the acoustic dispersion increases as a function of CO2 exposition time, where the microstructure of 0.6 water-cement ratio probes react faster to the carbonation. These results are in accordance with the experimental carbonation index, obtained by the well known Fourier Transform Infrared Spectroscopy technique.

KW - Carbonation in cement paste

KW - Ultrasonic phase velocity

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U2 - 10.1016/j.apacoust.2019.04.011

DO - 10.1016/j.apacoust.2019.04.011

M3 - Artículo

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VL - 154

SP - 129

EP - 134

JO - Applied Acoustics

JF - Applied Acoustics

ER -

Ultrasonic phase velocity of carbonated cement paste probes

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Keywords

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