Naslov
Replacement of damaged concrete paving blocks

Autori
Skazlić, Marijan ; Bjegović, Dubravka ; Jambrešić, Mladen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
Proceedings of 8th International Conference on Concrete Block Paving: Suistanable Paving for Our Future / Smith, David R. - San Francisco (CA) : Interlocking Concrete Pavement Institute Foundation for Education and Research, 2006, 479-488

Skup
8th International Conference on Concrete Block Paving

Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 06.11.2006. - 08.11.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
concrete paving blocks; damage; durability; mechanical properties; repair; replacement

Sažetak
Surface damage (spalling) of new concrete paving blocks, which were cast into the square and streets of an old part of the town of Samobor, Croatia has appeared very soon after embedding. Damage was caused by freeze-thaw cycles during the first winter. The only criterion that cast paving blocks had to satisfy was 28-day compressive strength of 50 MPa. Damaged surfaces have been spread over the whole renovated area and, therefore, it was decided in favor of complete replacement of damaged paving blocks with new ones. The newly produced paving blocks had to have, along with required mechanical properties, better durability properties for described aggressive environment. In this paper replacement of damaged concrete paving blocks is described as well as their quality control Mechanical and durability properties of newly produced concrete paving blocks were tested .in accordance with existing Croatian standards, in particular dimensions, volume and dry density, thickness of surface abrasion layer, compressive strength, bending strength, abrasion and impact resistance and freeze-thaw resistance with/without using deicing salts.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA