Measuring and Modeling the Plasticity of Clays

The measurement of plasticity in clay bodies is crucial in order to get products free of defects and with less processing time. However, tests which simulate the behavior of the clay during processing and the mathematical modeling of some of its characteristics, particularly the plasticity, become d...

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Main Authors: Fernando Augusto de Andrade, Hazim Ali Al-Qureshi, Dachamir Hotza
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2010-09-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000300019
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author Fernando Augusto de Andrade
Hazim Ali Al-Qureshi
Dachamir Hotza
author_facet Fernando Augusto de Andrade
Hazim Ali Al-Qureshi
Dachamir Hotza
author_sort Fernando Augusto de Andrade
collection DOAJ
description The measurement of plasticity in clay bodies is crucial in order to get products free of defects and with less processing time. However, tests which simulate the behavior of the clay during processing and the mathematical modeling of some of its characteristics, particularly the plasticity, become difficult because many variables are involved and there is no consensus on the choice of method to be used. This study aimed to develop a mathematical model based on compression test to evaluate the plasticity of clays. Three types of clays were studied with different levels of moisture and their indices of plasticity were also characterized by the Atterberg's and Pfefferkorn's methods. The experimental data were well fitted by the theoretical curves for a wide range of clay plasticity. Moreover, it was possible to observe a correlation between effective stress of compression and paste moisture within each group of clay.
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publishDate 2010-09-01
publisher Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
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spelling doaj.art-f8a7f4eae1864590af9f86358e213a1e2022-12-22T01:20:54ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392010-09-0113339539910.1590/S1516-14392010000300019Measuring and Modeling the Plasticity of ClaysFernando Augusto de AndradeHazim Ali Al-QureshiDachamir HotzaThe measurement of plasticity in clay bodies is crucial in order to get products free of defects and with less processing time. However, tests which simulate the behavior of the clay during processing and the mathematical modeling of some of its characteristics, particularly the plasticity, become difficult because many variables are involved and there is no consensus on the choice of method to be used. This study aimed to develop a mathematical model based on compression test to evaluate the plasticity of clays. Three types of clays were studied with different levels of moisture and their indices of plasticity were also characterized by the Atterberg's and Pfefferkorn's methods. The experimental data were well fitted by the theoretical curves for a wide range of clay plasticity. Moreover, it was possible to observe a correlation between effective stress of compression and paste moisture within each group of clay.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000300019claysextrusionplasticitymodeling
spellingShingle Fernando Augusto de Andrade
Hazim Ali Al-Qureshi
Dachamir Hotza
Measuring and Modeling the Plasticity of Clays
Materials Research
clays
extrusion
plasticity
modeling
title Measuring and Modeling the Plasticity of Clays
title_full Measuring and Modeling the Plasticity of Clays
title_fullStr Measuring and Modeling the Plasticity of Clays
title_full_unstemmed Measuring and Modeling the Plasticity of Clays
title_short Measuring and Modeling the Plasticity of Clays
title_sort measuring and modeling the plasticity of clays
topic clays
extrusion
plasticity
modeling
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000300019
work_keys_str_mv AT fernandoaugustodeandrade measuringandmodelingtheplasticityofclays
AT hazimalialqureshi measuringandmodelingtheplasticityofclays
AT dachamirhotza measuringandmodelingtheplasticityofclays