Compressive strength values dispersion of concrete mixtures designed in central and in situ

  • Andre Alves Universidade Estadual Vale do Acaraú
  • Francisco Santos Universidade Estadual Vale do Acaraú
  • Aldecira Deogenes Universidade Estadual Vale do Acaraú
  • Kelvya Moreira Universidade Estadual Vale do Acaraú
  • Esequiel Mesquita Faculdade de Engenharia da Universidade do Porto

Abstract

The compressive strength test method has been the most used test to evaluate the quality of concrete in the hardened state due to the simplicity in the execution, the reliability of the results achieved and the low cost. Regardless of whether concrete to be produced in concrete central or at the construction site (in situ), the requirement for the application of compressive strength test is a constant, because it allows the prediction of resistence capacity of the structure piece. However it must ensure that there is a correlation between the strength values obtained for concrete produced in central and in situ that can intervene in the correct analysis of quality. For this, the purpose was to make a dispersion relation of seven concrete with compressive strengths of 20, 25, 30, 35 and 40 MPa. Two mixtures (35 MPa and 40 MPa) were performed in central, while five concrete mixtures were performed in situ, by five different worker's group with same time of experience on concrete’s manufacture.

Author Biographies

Andre Alves, Universidade Estadual Vale do Acaraú
Grupo de Estudos em Estruturas e Materiais - GEM, Department of Civil Engineering
Francisco Santos, Universidade Estadual Vale do Acaraú
Grupo de Estudos em Estruturas e Materiais - GEM, Department of Civil Engineering
Aldecira Deogenes, Universidade Estadual Vale do Acaraú
Grupo de Estudos em Estruturas e Materiais - GEM, Department of Civil Engineering
Kelvya Moreira, Universidade Estadual Vale do Acaraú
Grupo de Estudos em Estruturas e Materiais - GEM, Department of Civil Engineering
Esequiel Mesquita, Faculdade de Engenharia da Universidade do Porto
CONSTRUCT-LESE, Department of Civil Engineering
Published
2017-10-04
Section
Artigos