Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices
Abstract The present study evaluated the feasibility of the use of grinding dust (GD), a waste generated in the clutch disc finishing process, as a retardant additive in cementitious matrices. For this, the waste was added in contents of 5%, 10% and 15%, relative to the cement weight, and the setting time was determined by the Vicat method. In addition, the influence of this material on rheology (flow table, squeeze-flow and rotational rheometry) and on the physical-mechanical properties of the hardened matrices was analyzed. The results indicated an increase in setting time and a reduction in the fluidity of the mortars as a function of the addition of GD and the best results for the hardened state properties were verified for the cementitious matrices containing a 5% addition. Therefore, it was observed that GD is effective in retarding the setting time, presenting great potential for use in civil construction, without impairing its properties.
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IBRACON - Instituto Brasileiro do Concreto
2019
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oai:scielo:S1983-419520190003004862019-07-16Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matricesMARIANO,R. D.ANDRADE NETO,J. S.MORELLI,M. R.RIBEIRO,D. V. waste grinding dust retarding admixture rheology physical-mechanical properties. Abstract The present study evaluated the feasibility of the use of grinding dust (GD), a waste generated in the clutch disc finishing process, as a retardant additive in cementitious matrices. For this, the waste was added in contents of 5%, 10% and 15%, relative to the cement weight, and the setting time was determined by the Vicat method. In addition, the influence of this material on rheology (flow table, squeeze-flow and rotational rheometry) and on the physical-mechanical properties of the hardened matrices was analyzed. The results indicated an increase in setting time and a reduction in the fluidity of the mortars as a function of the addition of GD and the best results for the hardened state properties were verified for the cementitious matrices containing a 5% addition. Therefore, it was observed that GD is effective in retarding the setting time, presenting great potential for use in civil construction, without impairing its properties.info:eu-repo/semantics/openAccessIBRACON - Instituto Brasileiro do ConcretoRevista IBRACON de Estruturas e Materiais v.12 n.3 20192019-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000300486en10.1590/s1983-41952019000300004 |
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MARIANO,R. D. ANDRADE NETO,J. S. MORELLI,M. R. RIBEIRO,D. V. |
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MARIANO,R. D. ANDRADE NETO,J. S. MORELLI,M. R. RIBEIRO,D. V. Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
author_facet |
MARIANO,R. D. ANDRADE NETO,J. S. MORELLI,M. R. RIBEIRO,D. V. |
author_sort |
MARIANO,R. D. |
title |
Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
title_short |
Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
title_full |
Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
title_fullStr |
Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
title_full_unstemmed |
Retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
title_sort |
retarding effect of grinding dust and its influence on the physical-mechanical and rheological properties of cementitious matrices |
description |
Abstract The present study evaluated the feasibility of the use of grinding dust (GD), a waste generated in the clutch disc finishing process, as a retardant additive in cementitious matrices. For this, the waste was added in contents of 5%, 10% and 15%, relative to the cement weight, and the setting time was determined by the Vicat method. In addition, the influence of this material on rheology (flow table, squeeze-flow and rotational rheometry) and on the physical-mechanical properties of the hardened matrices was analyzed. The results indicated an increase in setting time and a reduction in the fluidity of the mortars as a function of the addition of GD and the best results for the hardened state properties were verified for the cementitious matrices containing a 5% addition. Therefore, it was observed that GD is effective in retarding the setting time, presenting great potential for use in civil construction, without impairing its properties. |
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IBRACON - Instituto Brasileiro do Concreto |
publishDate |
2019 |
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http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952019000300486 |
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