Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate
The elastic behavior of the concrete is estimated from its strength or determined by static or dynamic tests. However, because the codes of practice do not standardize the internal moisture content of the concrete and disregard the use of recycled aggregates when proposing equations for the estimati...
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ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
2019
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ojs-article-788252019-03-12T22:02:51Z Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate Kazmierczak, Claudio de Souza Boaro, Joana Kirchner Benetti Lunardi, Monique Palavro Kulakowski, Marlova Piva Mancio, Mauricio Dynamic modulus of elasticity, concrete moisture content, concrete with recycled concrete aggregate The elastic behavior of the concrete is estimated from its strength or determined by static or dynamic tests. However, because the codes of practice do not standardize the internal moisture content of the concrete and disregard the use of recycled aggregates when proposing equations for the estimation of the modulus of elasticity, discrepancies between the values measured and estimated are frequent. The influence of the moisture content of concrete containing basaltic coarse aggregates and coarse recycled concrete aggregate in the dynamic modulus of elasticity is discussed in this paper. A basalt coarse aggregate and two recycled coarse aggregates where used. For each type of coarse aggregate, concrete with compression strength between 25 MPa and 55 MPa were produced. The dynamic modulus of elasticity of the saturated samples were determined and range from 26 GPa to 46 GPa. There is a significant difference in the value of the dynamic modulus of elasticity for dry concrete versus saturated concrete, also influenced by the type of aggregate. Estimations of the modulus of elasticity from the compressive strength equations proposed by the codes of practice must be improved considering its characteristics. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído FINEP, CNPq 2019-03-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/78825 Ambiente Construído; v. 19, n. 2 (2019): Edição Especial sobre Resíduos como Materiais de Construção; 79-89 Ambiente Construído; v. 19, n. 2 (2019): Edição Especial sobre Resíduos como Materiais de Construção; 79-89 Ambiente Construído; v. 19, n. 2 (2019): Edição Especial sobre Resíduos como Materiais de Construção; 79-89 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/78825/52276 Direitos autorais 2019 Ambiente Construído https://creativecommons.org/licenses/by/4.0 |
| institution |
Universidade Federal do Rio Grande do Sul |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Kazmierczak, Claudio de Souza Boaro, Joana Kirchner Benetti Lunardi, Monique Palavro Kulakowski, Marlova Piva Mancio, Mauricio |
| spellingShingle |
Kazmierczak, Claudio de Souza Boaro, Joana Kirchner Benetti Lunardi, Monique Palavro Kulakowski, Marlova Piva Mancio, Mauricio Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| author_facet |
Kazmierczak, Claudio de Souza Boaro, Joana Kirchner Benetti Lunardi, Monique Palavro Kulakowski, Marlova Piva Mancio, Mauricio |
| author_sort |
Kazmierczak, Claudio de Souza |
| title |
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| title_short |
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| title_full |
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| title_fullStr |
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| title_full_unstemmed |
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| title_sort |
influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate |
| description |
The elastic behavior of the concrete is estimated from its strength or determined by static or dynamic tests. However, because the codes of practice do not standardize the internal moisture content of the concrete and disregard the use of recycled aggregates when proposing equations for the estimation of the modulus of elasticity, discrepancies between the values measured and estimated are frequent. The influence of the moisture content of concrete containing basaltic coarse aggregates and coarse recycled concrete aggregate in the dynamic modulus of elasticity is discussed in this paper. A basalt coarse aggregate and two recycled coarse aggregates where used. For each type of coarse aggregate, concrete with compression strength between 25 MPa and 55 MPa were produced. The dynamic modulus of elasticity of the saturated samples were determined and range from 26 GPa to 46 GPa. There is a significant difference in the value of the dynamic modulus of elasticity for dry concrete versus saturated concrete, also influenced by the type of aggregate. Estimations of the modulus of elasticity from the compressive strength equations proposed by the codes of practice must be improved considering its characteristics. |
| publisher |
ANTAC - Associação Nacional de Tecnologia do Ambiente Construído |
| publishDate |
2019 |
| url |
https://seer.ufrgs.br/ambienteconstruido/article/view/78825 |
| work_keys_str_mv |
AT kazmierczakclaudiodesouza influenceofthemoisturecontentonthedynamicmodulusofelasticityofconcretemadewithrecycledaggregate AT boarojoanakirchnerbenetti influenceofthemoisturecontentonthedynamicmodulusofelasticityofconcretemadewithrecycledaggregate AT lunardimoniquepalavro influenceofthemoisturecontentonthedynamicmodulusofelasticityofconcretemadewithrecycledaggregate AT kulakowskimarlovapiva influenceofthemoisturecontentonthedynamicmodulusofelasticityofconcretemadewithrecycledaggregate AT manciomauricio influenceofthemoisturecontentonthedynamicmodulusofelasticityofconcretemadewithrecycledaggregate |
| _version_ |
1709370607973433344 |