Notice: Undefined index: linkPowrot in C:\wwwroot\wwwroot\publikacje\publikacje.php on line 1275
Publikacje
Pomoc (F2)
[56430] Artykuł:

SCALING RESISTANCE AND AIR VOID CHARACTERISTICS IN CONCRETE CONTAINING GGBS

Czasopismo: Archives of Civil Engineering   Tom: Volume LXII, Zeszyt: 4/2016, Strony: 181-189
ISSN:  1230-2945
Wydawca:  POLISH ACAD SCIENCES INST FUNDAMENTAL TECHNOLOGICAL RESEARCH, PAWINSKIEGO 5B, 02-106 WARSAW, POLAND
Opublikowano: 2016
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Procent
udziału
Liczba
punktów
Jerzy Wawrzeńczyk orcid logoWBiAKatedra Technologii i Organizacji Budownictwa *****337.50  
Agnieszka Molendowska orcid logoWBiAKatedra Technologii i Organizacji Budownictwa *****337.50  
Tomasz Juszczak33.00  

Grupa MNiSW:  Publikacja w recenzowanym czasopiśmie wymienionym w wykazie ministra MNiSzW (część B)
Punkty MNiSW: 15
Klasyfikacja Web of Science: Article


DOI LogoDOI     Web of Science Logo Web of Science    
Keywords:

scaling resistance  air entrainment  ggbs  air pore system  



Abstract:

In this paper we discuss the test results for concretes containing various amounts of ggbs as compared to concretes made with Portland cement. The main objective of these tests is to evaluate the influence of varying air content in such mixtures on the structure and frost resistance of concrete. The authors suggest that the approach presented here allows for a safe design of concrete mixtures in terms of their frost resistance.

The results indicate that concrete can be resistant to surface scaling even at the W/C ratio markedly higher than 0.45. Increased addition of ggbs leads to a decrease in concrete resistance to surface scaling. Proper air entrainment is the fundamental factor for frost-resistant concrete, and the air void system has to be assessed (micropore content A(300), spacing factor (L) over bar). The addition of ggbs increases pore diameters, thus, to obtain the appropriate air pore spacing factor, micropore quantities introduced have to be increased.