Skoči na glavni sadržaj

Pregledni rad

https://doi.org/10.13167/2014.9.5

COMPARISON OF CROATIAN AND EUROPEAN STANDARDS FOR DETERMINING THE FROST SUSCEPTIBILITY OF HYDRAULICALLY BOUND MIXTURES

Elena Ovad ; Sveučilište J. J. Strossmayera u Osijeku, Građevinski fakultet Osijek, Osijek, Hrvatska
Ivana Barišić orcid id orcid.org/0000-0002-8680-977X ; Sveučilište J. J. Strossmayera u Osijeku, Građevinski fakultet Osijek, Osijek, Hrvatska
Martina Zagvozda ; Sveučilište J. J. Strossmayera u Osijeku, Građevinski fakultet Osijek, Osijek, Hrvatska


Puni tekst: engleski pdf 541 Kb

str. 41-48

preuzimanja: 665

citiraj


Sažetak

The base layer of a multi-layered pavement structure is often a cement-bound material, which combines an aggregate with cement binder. This load-bearing layer is quite rigid, which improves pavement properties, including frost resistance, and extends the life cycle of the pavement. In geographic areas with low temperatures and significant ground water, the bearing capacity of pavement structures can be reduced by volume deformations from freezing and thawing. Cold winters and frost-susceptible soil are present in eastern Croatia and in the city of Osijek. Thus, in this paper we examine the frost susceptibility of cement-bound aggregates, made with materials commonly used in Croatia, in accordance with the current Croatian standard HRN U.B1.050 and a new European standard EN 13286-54. The test mixtures did not meet the conditions for frost-resistant materials. To meet these conditions, one must use a higher cement ratio or a cement with a higher strength class.

Ključne riječi

freeze-thaw resistance, cement-bound aggregate, pavement structure, standards

Hrčak ID:

131385

URI

https://hrcak.srce.hr/131385

Posjeta: 1.042 *