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Frost-damaged concrete: Part 1. Material properties

Kamyab Zandi Hanjari (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Peter Utgenannt ; Karin Lundgren (Institutionen för bygg- och miljöteknik, Konstruktionsteknik)
4th International Conference on Construction Materials: Performance, Innovations and Structural Implications p. 753-760. (2009)
[Konferensbidrag, refereegranskat]

In an extensive experimental investigation, several tests were performed on a reference and frost-damaged concrete. The test results showed significant influence of freeze-thaw cycles not only on the compressive strength but, to a larger extent, on the modulus of elasticity and the compressive strain at peak stress. Reduced tensile strength and increased fracture energy were measured. From inverse analysis, significant effect of frost on the shape of the tensile stress-crack opening relationship was observed; i.e. tensile strength was decreased while the post-peak behavior was more ductile for the frost-damaged concrete than for the reference concrete.

Nyckelord: frost damage, material properties, concrete, fracture energy



Denna post skapades 2009-11-09. Senast ändrad 2014-10-27.
CPL Pubid: 101438

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Konstruktionsteknik

Ämnesområden

Konstruktionsteknik

Chalmers infrastruktur