Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods

Taking into account the possibilities offered by two imaging methods, X-ray microcomputed tomography (µCT) and two-dimensional optical scanning, this article discusses the possibility of using these methods to assess the internal structure of spun concrete, particularly its composition after hardeni...

Full description

Bibliographic Details
Main Authors: Jarosław Michałek, Maciej Sobótka
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/18/3987
id doaj-61f5bae1249c40e7843f237e5da74743
record_format Article
spelling doaj-61f5bae1249c40e7843f237e5da747432020-11-25T03:11:49ZengMDPI AGMaterials1996-19442020-09-01133987398710.3390/ma13183987Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical MethodsJarosław Michałek0Maciej Sobótka1Faculty of Civil Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, PolandFaculty of Civil Engineering, Wroclaw University of Science and Technology, 50-370 Wroclaw, PolandTaking into account the possibilities offered by two imaging methods, X-ray microcomputed tomography (µCT) and two-dimensional optical scanning, this article discusses the possibility of using these methods to assess the internal structure of spun concrete, particularly its composition after hardening. To demonstrate the performance of the approach based on imaging, laboratory techniques based on physical and chemical methods were used as verification. Comparison of obtained results of applied research methods was carried out on samples of spun concrete, characterized by a layered structure of the annular cross-section. Samples were taken from the power pole E10.5/6c (Strunobet-Migacz, Lewin Brzeski, Poland) made by one of the Polish manufacturers of prestressed concrete E-poles precast in steel molds. The validation shows that optical scanning followed by appropriate image analysis is an effective method for evaluation of the spun concrete internal structure. In addition, such analysis can significantly complement the results of laboratory methods used so far. In a fairly simple way, through the porosity image, it can reveal improperly selected parameters of concrete spinning such as speed and time, and, through the distribution of cement content in the cross-section of the element, it can indicate compliance with the requirement for corrosion durability of spun concrete. The research methodology presented in the paper can be used to improve the production process of poles made of spun concrete; it can be an effective tool for verifying concrete structure.https://www.mdpi.com/1996-1944/13/18/3987concrete centrifugationmorphologyimage processingporosityaggregatecement
collection DOAJ
language English
format Article
sources DOAJ
author Jarosław Michałek
Maciej Sobótka
spellingShingle Jarosław Michałek
Maciej Sobótka
Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
Materials
concrete centrifugation
morphology
image processing
porosity
aggregate
cement
author_facet Jarosław Michałek
Maciej Sobótka
author_sort Jarosław Michałek
title Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
title_short Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
title_full Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
title_fullStr Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
title_full_unstemmed Assessment of Internal Structure of Spun Concrete Using Image Analysis and Physicochemical Methods
title_sort assessment of internal structure of spun concrete using image analysis and physicochemical methods
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2020-09-01
description Taking into account the possibilities offered by two imaging methods, X-ray microcomputed tomography (µCT) and two-dimensional optical scanning, this article discusses the possibility of using these methods to assess the internal structure of spun concrete, particularly its composition after hardening. To demonstrate the performance of the approach based on imaging, laboratory techniques based on physical and chemical methods were used as verification. Comparison of obtained results of applied research methods was carried out on samples of spun concrete, characterized by a layered structure of the annular cross-section. Samples were taken from the power pole E10.5/6c (Strunobet-Migacz, Lewin Brzeski, Poland) made by one of the Polish manufacturers of prestressed concrete E-poles precast in steel molds. The validation shows that optical scanning followed by appropriate image analysis is an effective method for evaluation of the spun concrete internal structure. In addition, such analysis can significantly complement the results of laboratory methods used so far. In a fairly simple way, through the porosity image, it can reveal improperly selected parameters of concrete spinning such as speed and time, and, through the distribution of cement content in the cross-section of the element, it can indicate compliance with the requirement for corrosion durability of spun concrete. The research methodology presented in the paper can be used to improve the production process of poles made of spun concrete; it can be an effective tool for verifying concrete structure.
topic concrete centrifugation
morphology
image processing
porosity
aggregate
cement
url https://www.mdpi.com/1996-1944/13/18/3987
work_keys_str_mv AT jarosławmichałek assessmentofinternalstructureofspunconcreteusingimageanalysisandphysicochemicalmethods
AT maciejsobotka assessmentofinternalstructureofspunconcreteusingimageanalysisandphysicochemicalmethods
_version_ 1724652719984082944