Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes
Abstract
The aim of this investigation is to establish the correlation between concrete porosity, compressive mechanical strength, and microstructure using the results of nondestructive testing methods, i.e., ultrasonic pulse velocity (UPV) and image analysis. Researchers and engineers usually use results of standard laboratory procedures in order to obtain mechanical properties of a material. That process is long and it requires large number of samples, i.e., a lot of time and lot of material. Image Pro Plus (IPP) and UPV are methods which can provide equally accurate results. These methods are much more simple, rapid, and cheaper. Nondestructive test methods were applied on the corundum and bauxite based refractory concretes. Investigated concretes are varying in chemical and mineralogical composition. Mechanical compressive strength of concrete samples after thermal treatment at various temperatures (110, 800, 1,000, 1,300, and 1,500 degrees C) was investigated using standard laboratory proc...edure and afterward with UPV technique. Loss of strength and degradation occurs when refractory concrete sample is subjected to increased temperature and compressive load; therefore, measurement of mechanical properties can indicate and monitor the changes in the microstructure. Level of surface deterioration after thermal treatment was determined using optical microscope and IPP. Nondestructive ultrasonic measurement was also used as a means of monitoring of increasing porosity in refractory specimens. UPV technique and image analysis are reliable nondestructive methods for characterization of microstructural defects and can be useful when type of refractory concrete is to be chosen for an application.
Keywords:
Refractory concrete / Nondestructive testing methods / Mechanical properties / Image analysis / Apparent porositySource:
Journal of Materials in Civil Engineering, 2010, 22, 9, 853-857Publisher:
- ASCE - American Society of Civil Engineers
Funding / projects:
- Razvoj nove generacije konstrucionih materijala za visokotemperaturnu primenu (RS-19012)
- Istraživanje savremenih betonskih kompozita na bazi domaćih sirovina, sa posebnim osvrtom na mogućnosti primene betona sa recikliranim agregatom u betonskim konstrukcijama (RS-16004)
DOI: 10.1061/(ASCE)MT.1943-5533.0000083
ISSN: 0899-1561
WoS: 000280952200004
Scopus: 2-s2.0-78650456941
Collections
Institution/Community
Institut za ispitivanje materijalaTY - JOUR AU - Terzić, Anja AU - Pavlović, Ljubica PY - 2010 UR - http://rims.institutims.rs/handle/123456789/122 AB - The aim of this investigation is to establish the correlation between concrete porosity, compressive mechanical strength, and microstructure using the results of nondestructive testing methods, i.e., ultrasonic pulse velocity (UPV) and image analysis. Researchers and engineers usually use results of standard laboratory procedures in order to obtain mechanical properties of a material. That process is long and it requires large number of samples, i.e., a lot of time and lot of material. Image Pro Plus (IPP) and UPV are methods which can provide equally accurate results. These methods are much more simple, rapid, and cheaper. Nondestructive test methods were applied on the corundum and bauxite based refractory concretes. Investigated concretes are varying in chemical and mineralogical composition. Mechanical compressive strength of concrete samples after thermal treatment at various temperatures (110, 800, 1,000, 1,300, and 1,500 degrees C) was investigated using standard laboratory procedure and afterward with UPV technique. Loss of strength and degradation occurs when refractory concrete sample is subjected to increased temperature and compressive load; therefore, measurement of mechanical properties can indicate and monitor the changes in the microstructure. Level of surface deterioration after thermal treatment was determined using optical microscope and IPP. Nondestructive ultrasonic measurement was also used as a means of monitoring of increasing porosity in refractory specimens. UPV technique and image analysis are reliable nondestructive methods for characterization of microstructural defects and can be useful when type of refractory concrete is to be chosen for an application. PB - ASCE - American Society of Civil Engineers T2 - Journal of Materials in Civil Engineering T1 - Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes EP - 857 IS - 9 SP - 853 VL - 22 DO - 10.1061/(ASCE)MT.1943-5533.0000083 ER -
@article{ author = "Terzić, Anja and Pavlović, Ljubica", year = "2010", abstract = "The aim of this investigation is to establish the correlation between concrete porosity, compressive mechanical strength, and microstructure using the results of nondestructive testing methods, i.e., ultrasonic pulse velocity (UPV) and image analysis. Researchers and engineers usually use results of standard laboratory procedures in order to obtain mechanical properties of a material. That process is long and it requires large number of samples, i.e., a lot of time and lot of material. Image Pro Plus (IPP) and UPV are methods which can provide equally accurate results. These methods are much more simple, rapid, and cheaper. Nondestructive test methods were applied on the corundum and bauxite based refractory concretes. Investigated concretes are varying in chemical and mineralogical composition. Mechanical compressive strength of concrete samples after thermal treatment at various temperatures (110, 800, 1,000, 1,300, and 1,500 degrees C) was investigated using standard laboratory procedure and afterward with UPV technique. Loss of strength and degradation occurs when refractory concrete sample is subjected to increased temperature and compressive load; therefore, measurement of mechanical properties can indicate and monitor the changes in the microstructure. Level of surface deterioration after thermal treatment was determined using optical microscope and IPP. Nondestructive ultrasonic measurement was also used as a means of monitoring of increasing porosity in refractory specimens. UPV technique and image analysis are reliable nondestructive methods for characterization of microstructural defects and can be useful when type of refractory concrete is to be chosen for an application.", publisher = "ASCE - American Society of Civil Engineers", journal = "Journal of Materials in Civil Engineering", title = "Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes", pages = "857-853", number = "9", volume = "22", doi = "10.1061/(ASCE)MT.1943-5533.0000083" }
Terzić, A.,& Pavlović, L.. (2010). Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes. in Journal of Materials in Civil Engineering ASCE - American Society of Civil Engineers., 22(9), 853-857. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000083
Terzić A, Pavlović L. Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes. in Journal of Materials in Civil Engineering. 2010;22(9):853-857. doi:10.1061/(ASCE)MT.1943-5533.0000083 .
Terzić, Anja, Pavlović, Ljubica, "Application of Results of Nondestructive Testing Methods in the Investigation of Microstructure of Refractory Concretes" in Journal of Materials in Civil Engineering, 22, no. 9 (2010):853-857, https://doi.org/10.1061/(ASCE)MT.1943-5533.0000083 . .