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[50960] Artykuł:

Determining equivalent performance for frost durability of concrete containing different amounts of ground granulated blast furnace slag

Czasopismo: BULLETIN OF THE POLISH ACADEMY OF SCIENCES TECHNICAL SCIENCES   Tom: 64, Zeszyt: 4, Strony: 731-737
ISSN:  0239-7528
Wydawca:  POLSKA AKAD NAUK, POLISH ACAD SCI, DIV IV TECHNICAL SCIENCES PAS, PL DEFILAD 1, WARSZAWA, 00-901, POLAND
Opublikowano: Grudzień 2016
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału
Liczba
punktów
Jerzy Wawrzeńczyk orcid logoWBiAKatedra Technologii i Organizacji Budownictwa *****3310.00  
Tomasz Juszczak33.00  
Agnieszka Molendowska orcid logoWBiAKatedra Technologii i Organizacji Budownictwa *****3310.00  

Grupa MNiSW:  Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A)
Punkty MNiSW: 20
Klasyfikacja Web of Science: Article


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Keywords:

equivalent concrete performance concept ECPC  frost durability  ground granulated blast furnace slag ggbs 



Abstract:

This paper deals with the issues pertinent to the design of frost-resistant concretes in exposure class XF3 (high water saturation) when the concretes are made with cements containing ground granulated blast furnace slag (ggbs). The testing programme covered four series of non-air entrained concrete made with cements CEM I, CEM II/A-S, CEM II/B-S and CEM III/A containing 0%, 13%, 28% and 53% ggbs respectively, and two non-air entrained concrete series with the binder made from CEM I and 0 to 55% ggbs. The water-binder (w/b) ratio ranged from 0.25 to 0.55.

Frost durability testing was performed using a modified ASTM C666A procedure to determine changes in mass (dm) and beam length (dL). The relationships occurring between the w/b ratio and ggbs content in the binder and the length change (dL) of the specimens were described using curvilinear regression functions, through the analysis of artificial neural networks.

Slag-content-dependent critical values of the w/b ratio were determined taking the length change dL = 1.3 mm to be the criterion for the resistance to internal cracking. In the authors' view, this approach can be a good method for checking equivalent performance of concretes made with cements containing mineral additions.