Naslov
Application of GPR and FWD in Assessing Pavement Bearing Capacity

Autori
Domitrović, Josipa ; Rukavina, Tatjana

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

Izvornik
“Road Research and administration” - Conference Papers e-proceedings / Răcănel, Carmen - Bukurešt, 2013, 442-452

Skup
CAR 2013 - VIth International Scientific Conference

Mjesto i datum
Bukurešt, Rumunjska, 04.07.2013. - 05.07.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
non-destructive testing ; FWD ; GPR ; layer thickness ; elastic moduli

Sažetak
The process of pavement maintenance and rehabilitation starts by collecting the data which will form the base for evaluation of pavement functional and structural condition. Collection of data can be performed by destructive and non-destructive testing. Usually preferred are the non-destructive methods, that do not damage the pavement, and the process of pavement evaluation is objective and repeatable. Non-destructive testing methods are becoming more and more popular, especially for assessing the structural condition of the pavement. Non-destructive testing by a Falling Weight Deflectometer (FWD) and the analysis of so collected data by the process of backcalculations is today the usual tool for assessing pavement bearing capacity. One of the basic input parameters for analysis of the data collected by FWD is pavement layers thickness. The practice in Croatia is to determine pavement layers thickness by coring. This destructive method affects pavement integrity, so the number of such tests should be kept to the minimum. By coring the accurate thickness of all pavement layers is obtained on specific point locations. Thus, numerous deviations in layer thickness remain unnoticed, and in the end, use of such data for the process of backcalculations does not provide ac urate values of layer moduli. Coring can be replaced with non-destructive method of testing by Ground Penetrating Radar (GPR), which provides continuous information on thickness of all pavement layers.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA