Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete

Abstract The aim of this research is to provide a quantitative method for evaluating concrete segregation. Because of various conditions of concrete materials, mix proportions, and delivery, concrete can be segregated. The acquisition inspection executed in construction field for supplied ready-mixe...

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Main Authors: In-Deok Han, Dongyeop Han
Format: Article
Language:English
Published: SpringerOpen 2021-04-01
Series:International Journal of Concrete Structures and Materials
Subjects:
Online Access:https://doi.org/10.1186/s40069-021-00458-9
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author In-Deok Han
Dongyeop Han
author_facet In-Deok Han
Dongyeop Han
author_sort In-Deok Han
collection DOAJ
description Abstract The aim of this research is to provide a quantitative method for evaluating concrete segregation. Because of various conditions of concrete materials, mix proportions, and delivery, concrete can be segregated. The acquisition inspection executed in construction field for supplied ready-mixed concrete is an important quality control process for concrete. Among the inspections conducted at the project site, segregation of concrete mixture should be evaluated before placing the concrete mixture, currently a qualitative inspection on concrete segregation was conducted. For a normal concrete mixture with slumping behavior, shear slump or collapse slump often occur as an indication of segregation. The suggested evaluation index of segregation for normal concrete (EISN) was induced from the shape of the concrete slumping: relation between the maximum distance of flow and the minimum distance of flow. To evaluate the feasibility of EISN, two different concrete mixture conditions were tested. The recommended EISN parameter of segregation is 1.09 using the three grades of concrete quality. This new quantitative method of evaluating segregation of the concrete mixture is expected to contribute to a more efficient quality control in concrete construction.
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spelling doaj.art-94477acd6b9649deb2ec14eaab4720352022-12-21T19:41:30ZengSpringerOpenInternational Journal of Concrete Structures and Materials1976-04852234-13152021-04-0115111510.1186/s40069-021-00458-9Introducing a New Quantitative Evaluation Method for Segregation of Normal ConcreteIn-Deok Han0Dongyeop Han1Department of Architectural Engineering, Jeju National UniversityDepartment of Architectural Engineering, and Engineering Research Institute, Gyeongsang National UniversityAbstract The aim of this research is to provide a quantitative method for evaluating concrete segregation. Because of various conditions of concrete materials, mix proportions, and delivery, concrete can be segregated. The acquisition inspection executed in construction field for supplied ready-mixed concrete is an important quality control process for concrete. Among the inspections conducted at the project site, segregation of concrete mixture should be evaluated before placing the concrete mixture, currently a qualitative inspection on concrete segregation was conducted. For a normal concrete mixture with slumping behavior, shear slump or collapse slump often occur as an indication of segregation. The suggested evaluation index of segregation for normal concrete (EISN) was induced from the shape of the concrete slumping: relation between the maximum distance of flow and the minimum distance of flow. To evaluate the feasibility of EISN, two different concrete mixture conditions were tested. The recommended EISN parameter of segregation is 1.09 using the three grades of concrete quality. This new quantitative method of evaluating segregation of the concrete mixture is expected to contribute to a more efficient quality control in concrete construction.https://doi.org/10.1186/s40069-021-00458-9Concrete segregationSlumpSlump flowSegregation evaluationQuantitative method
spellingShingle In-Deok Han
Dongyeop Han
Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
International Journal of Concrete Structures and Materials
Concrete segregation
Slump
Slump flow
Segregation evaluation
Quantitative method
title Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
title_full Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
title_fullStr Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
title_full_unstemmed Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
title_short Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete
title_sort introducing a new quantitative evaluation method for segregation of normal concrete
topic Concrete segregation
Slump
Slump flow
Segregation evaluation
Quantitative method
url https://doi.org/10.1186/s40069-021-00458-9
work_keys_str_mv AT indeokhan introducinganewquantitativeevaluationmethodforsegregationofnormalconcrete
AT dongyeophan introducinganewquantitativeevaluationmethodforsegregationofnormalconcrete