Correlation between thermal deformation and microcracking in concrete during cryogenic cooling

Reginald B. Kogbara; Srinath R. Iyengar; Zachary C. Grasley; Syeda Rahman; Eyad A. Masad; Dan G. Zollinger

doi:10.1016/j.ndteint.2015.09.002

Correlation between thermal deformation and microcracking in concrete during cryogenic cooling

Reginald B. Kogbara^*, Srinath R. Iyengar, Zachary C. Grasley, Syeda Rahman, Eyad A. Masad, Dan G. Zollinger

^*Corresponding author for this work

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

33 Citations (Scopus)

Abstract

Thermal deformation behavior of concrete mixtures from limestone and trap rock aggregates has been related to microcracking during cryogenic cooling. The study was aimed at comparing the suitability of the concretes for direct containment of liquefied natural gas (LNG). The results showed strong correlation between the thermal strain rate and the acoustic emission (AE) cumulative hits rate in the concretes. The closeness of the average thermal expansion coefficient of the trap rock mixture over the ambient to cryogenic temperature range to that of 9% Ni or carbon-steel, and its lower cumulative energy emission corroborates previous observations on its porosity, permeability and microstructural behavior. These likely make it more suitable for direct LNG containment.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	NDT and E International
Volume	77
DOIs	https://doi.org/10.1016/j.ndteint.2015.09.002
Publication status	Published - 1 Jan 2016
Externally published	Yes

Keywords

Acoustic emission
Coefficient of thermal expansion
Limestone aggregate
Strain gage
Trap rock aggregate

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10.1016/j.ndteint.2015.09.002

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title = "Correlation between thermal deformation and microcracking in concrete during cryogenic cooling",

abstract = "Thermal deformation behavior of concrete mixtures from limestone and trap rock aggregates has been related to microcracking during cryogenic cooling. The study was aimed at comparing the suitability of the concretes for direct containment of liquefied natural gas (LNG). The results showed strong correlation between the thermal strain rate and the acoustic emission (AE) cumulative hits rate in the concretes. The closeness of the average thermal expansion coefficient of the trap rock mixture over the ambient to cryogenic temperature range to that of 9% Ni or carbon-steel, and its lower cumulative energy emission corroborates previous observations on its porosity, permeability and microstructural behavior. These likely make it more suitable for direct LNG containment.",

keywords = "Acoustic emission, Coefficient of thermal expansion, Limestone aggregate, Strain gage, Trap rock aggregate",

author = "Kogbara, {Reginald B.} and Iyengar, {Srinath R.} and Grasley, {Zachary C.} and Syeda Rahman and Masad, {Eyad A.} and Zollinger, {Dan G.}",

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doi = "10.1016/j.ndteint.2015.09.002",

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TY - JOUR

T1 - Correlation between thermal deformation and microcracking in concrete during cryogenic cooling

AU - Kogbara, Reginald B.

AU - Iyengar, Srinath R.

AU - Grasley, Zachary C.

AU - Rahman, Syeda

AU - Masad, Eyad A.

AU - Zollinger, Dan G.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Thermal deformation behavior of concrete mixtures from limestone and trap rock aggregates has been related to microcracking during cryogenic cooling. The study was aimed at comparing the suitability of the concretes for direct containment of liquefied natural gas (LNG). The results showed strong correlation between the thermal strain rate and the acoustic emission (AE) cumulative hits rate in the concretes. The closeness of the average thermal expansion coefficient of the trap rock mixture over the ambient to cryogenic temperature range to that of 9% Ni or carbon-steel, and its lower cumulative energy emission corroborates previous observations on its porosity, permeability and microstructural behavior. These likely make it more suitable for direct LNG containment.

AB - Thermal deformation behavior of concrete mixtures from limestone and trap rock aggregates has been related to microcracking during cryogenic cooling. The study was aimed at comparing the suitability of the concretes for direct containment of liquefied natural gas (LNG). The results showed strong correlation between the thermal strain rate and the acoustic emission (AE) cumulative hits rate in the concretes. The closeness of the average thermal expansion coefficient of the trap rock mixture over the ambient to cryogenic temperature range to that of 9% Ni or carbon-steel, and its lower cumulative energy emission corroborates previous observations on its porosity, permeability and microstructural behavior. These likely make it more suitable for direct LNG containment.

KW - Acoustic emission

KW - Coefficient of thermal expansion

KW - Limestone aggregate

KW - Strain gage

KW - Trap rock aggregate

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DO - 10.1016/j.ndteint.2015.09.002

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VL - 77

SP - 1

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JO - NDT and E International

JF - NDT and E International

ER -

Correlation between thermal deformation and microcracking in concrete during cryogenic cooling

Abstract

Keywords

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