Concrete strength control: ABNT, ACI and EN comparative procedures. Site study case

Paulo Helene, Ricardo Boni, Carlos Britez

Abstract


This paper presents an approach regarding the control of compressive strength of concrete performed by Brazilian standard, additionally was proceeded with an analysis, from the same data, performed by ACI 318-14 and EN 206. In Brazil, the control of the axial compressive strength of concrete proceeds by following ABNT NBR 12655:2015. However, when this control is proceeded by other standards criteria, the results are not coincident. The ACI 318 procedures of sampling and the acceptance criteria are different from the model adopted by Brazilian standard. For this paper, a real case study was carried out, where a fck=40MPa, (SCC) has been produced, during 2 years and 9 months and poured on the building structure located in the city of São Paulo.


Keywords


strength control of concrete; variability of concrete compressive strength; comparison standard ABNT NBR 12655 with ACI 318 and EN 206

References


ABNT - Associação Brasileira de Normas Técnicas (2015), NBR 12655: Concreto de cimento Portland – Preparo, controle, recebimento e aceitação – Procedimento, Associação Brasileira de Normas Técnicas, p. 23.

ABNT - Associação Brasileira de Normas Técnicas (2014), NBR 6118: Projeto de estruturas de concreto – Procedimento, Associação Brasileira de Normas Técnicas, p. 238.

American Concrete Institute (2011), ACI 214R-11: Guide to Evaluation of Strength Test Results of Concrete, American Concrete Institute, p. 16.

American Concrete Institute (2014), ACI 318-14: Building Code Requirements for Structural Concrete, American Concrete Institute, p. 524.

ASTM International. (2016). ASTM C39/C39M-16b Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. Retrieved from https://doi.org/10.1520/C0039_C0039M-16B

EN 206 (2013), Concrete – Specification, performance, production and conformity, European Committee for Standardization, p. 93.

Pacheco J. & Helene P. (2013), Controle da resistência do concreto - 1ª Parte, Revista Concreto e Construções n. 69, pp 75 - 81.

Pacheco J. & Helene, P. (2013), Controle da resistência do concreto - 2ª Parte, Revista Concreto e Construções n. 70, pp 90 - 98.

Tutikian B. & Helene P. (2011), Dosagem dos Concretos de Cimento Portland. In: Geraldo C. Isaia (Org). Concreto: Ciência e Tecnologia. 1 ed. São Paulo: Ibracon, v. 1, pp 415 - 451.




DOI: http://dx.doi.org/10.21041/ra.v8i3.303

Refbacks

  • There are currently no refbacks.


 

Reservation of rights for exclusive use No.04-2013-011717330300-203  e-ISSN: 2007-6835. Revista ALCONPAT, Copyright © 2011 - 2017