Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone
Abstract The optimum dosage of superplasticizer (SP) additives is determined by the saturation point of SP (SPS), obtained on cement paste by the utilization of the Marsh cone. Obtaining the SPS is important because it defines the amount of SP that should be used in concrete dosages when it is neces...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Cerâmica
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| Series: | Cerâmica |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000200252&lng=en&tlng=en |
| _version_ | 1818245186012053504 |
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| author | O. F. da Silva P. C. C. Gomes K. A. M. Morais |
| author_facet | O. F. da Silva P. C. C. Gomes K. A. M. Morais |
| author_sort | O. F. da Silva |
| collection | DOAJ |
| description | Abstract The optimum dosage of superplasticizer (SP) additives is determined by the saturation point of SP (SPS), obtained on cement paste by the utilization of the Marsh cone. Obtaining the SPS is important because it defines the amount of SP that should be used in concrete dosages when it is necessary the reduction of water demand and the improvement of the workability. The SPS is determined by methods that use the angles defined by the slope of the flow curve, which are obtained through geometric and visual resources. However, depending on the curve shape, these methods can provide inaccurate results. For this reason, this study analyzed the utilization of the existent geometric methods and proposed a new analytic method of SPS determination. It is noteworthy that the proposed analytical method (PAM) was developed by a numerical implementation to obtain the representative function of paste flow. The SPS is determined from the solution of the phenomenon differential equation and can be used linked to a computational environment in concrete composition calculation. PAM was applied and evaluated in different flow curves obtained by several authors. |
| first_indexed | 2024-12-12T14:28:54Z |
| format | Article |
| id | doaj.art-2aaf1fd7a89244519f2ab69b54d7838b |
| institution | Directory Open Access Journal |
| issn | 1678-4553 |
| language | English |
| last_indexed | 2024-12-12T14:28:54Z |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj.art-2aaf1fd7a89244519f2ab69b54d7838b2022-12-22T00:21:35ZengAssociação Brasileira de CerâmicaCerâmica1678-45536537425226010.1590/0366-69132019653742662S0366-69132019000200252Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh coneO. F. da SilvaP. C. C. GomesK. A. M. MoraisAbstract The optimum dosage of superplasticizer (SP) additives is determined by the saturation point of SP (SPS), obtained on cement paste by the utilization of the Marsh cone. Obtaining the SPS is important because it defines the amount of SP that should be used in concrete dosages when it is necessary the reduction of water demand and the improvement of the workability. The SPS is determined by methods that use the angles defined by the slope of the flow curve, which are obtained through geometric and visual resources. However, depending on the curve shape, these methods can provide inaccurate results. For this reason, this study analyzed the utilization of the existent geometric methods and proposed a new analytic method of SPS determination. It is noteworthy that the proposed analytical method (PAM) was developed by a numerical implementation to obtain the representative function of paste flow. The SPS is determined from the solution of the phenomenon differential equation and can be used linked to a computational environment in concrete composition calculation. PAM was applied and evaluated in different flow curves obtained by several authors.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000200252&lng=en&tlng=ensuperplasticizersaturation pointMarsh coneanalytical method |
| spellingShingle | O. F. da Silva P. C. C. Gomes K. A. M. Morais Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone Cerâmica superplasticizer saturation point Marsh cone analytical method |
| title | Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone |
| title_full | Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone |
| title_fullStr | Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone |
| title_full_unstemmed | Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone |
| title_short | Analytical method for determining the saturation point of superplasticizers in cement pastes using the Marsh cone |
| title_sort | analytical method for determining the saturation point of superplasticizers in cement pastes using the marsh cone |
| topic | superplasticizer saturation point Marsh cone analytical method |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000200252&lng=en&tlng=en |
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