Results 131 to 140 of about 288 (174)

Variations in Backcalculated Pavement Layer Moduli in LTPP Seasonal Monitoring Sites

2000
Seasonal variations in structural parameters were calculated from Falling Weight Deflectometer data on 25 LTPP flexible seasonal monitoring sections. In all, 23,976 deflection basins were analyzed. The deflection basins were collected monthly between the fall of 1993 and the spring of 1995.
RC Briggs, EO Lukanen
exaly   +2 more sources

Rehabilitation of jointed Concrete in LTPP Southern Region

Airfield and Highway Pavement, 2006
The pavements composing the National Highway System are deteriorating as average daily loads continue to rise. Federal, state, and municipal agencies need greater confidence that rehabilitation options will provide the level of service required for the design life of the treatment.
Corey Zollinger, Mark Gardner, Dan Zollinger   +2 more
openaire   +1 more source

PERFORMANCE OF CONTINUOUSLY REINFORCED CONCRETE PAVEMENTS IN THE LTPP PROGRAM

Proceedings of the International Conference on Concrete Pavements, 2001
Since the 1960’s, thousands of miles of continuously reinforced concrete pavements (CRCP) have been built in the U.S. These pavements have typically provided 20 or more years of service life without requiring major rehabilitation. Design procedures of CRCP have evolved over time.
Shiraz D. Tayabji, Chung L. Wu, Mike Plei   +2 more
openaire   +1 more source

Mechanistic rutting modelling of a LTPP road structure

2019
A new Mechanistic-Empirical (M-E) approach is under development to predict the structural degradation of road structures as a function of time.
S. Erlingsson, A.W. Ahmed
openaire   +1 more source

Profile Data Variability in Pavement Management: Findings and Tools from LTPP

Airfield and Highway Pavement, 2006
One aspect of pavement management systems (PMS) that has begun to receive increased attention is that of data quality and variability. This paper provides recommendations for quantifying and controlling the variability of longitudinal profile data, and the resulting International Roughness Index (IRI) values. The recommendations were determined from an
Hao Yin, Shelley M. Stoffels, Charles A. Antle   +2 more
openaire   +1 more source

Forensic Evaluation of the LTPP Specific Pavement Study Projects in Arizona

Journal of Performance of Constructed Facilities, 2012
This paper presents a forensic investigation of selected Arizona specific pavement study (SPS) SPS-5 test sections. The investigation focused on identifying the causes of pavement failures, examining the pavement structural and functional performances, and measuring within-section layer thicknesses and material properties.
H. Zelelew, K. Senn, T. Papagiannakis
openaire   +1 more source

Optimal Thresholds for Pavement Preventive Maintenance Treatments Using LTPP Data

Journal of Transportation Engineering, Part A: Systems, 2017
AbstractOne obstacle to the optimal time for pavement maintenance treatments based on the expected performance or cost-effectiveness is the lack of posttreatment performance models at different tim...
Xueqin Chen, Hehua Zhu, Qiao Dong, Baoshan Huang   +3 more
openaire   +1 more source

Analysis of the wavelength content of the longitudinal profiles for C-LTPP test sections

Canadian Journal of Civil Engineering, 2002
A new approach for pavement longitudinal profile analysis is described in this paper. In this approach, based on a simple moving average filtering technique, the results are expressed in terms of the proportion of the calculated international roughness index associated with different wavelengths of pavement surface deformations.
Guy Doré, Martin Flamand, Pierre Pascale   +2 more
openaire   +1 more source

Evaluation of PCC Joint Stiffnesses Using LTPP Data

Proceedings of the International Conference on Concrete Pavements
Shear stiffness of joints and cracks profoundly affects the performance of concrete pavements. This paper presents a systematic analysis of stiffnesses of joints in jointed concrete pavements (JCP) and cracks of continuously reinforced pavements (CRCP) using deflection data collected under the Long Term Pavement Performance (LTPP) program.
Lev Khazanovich, Alex Gotlif
openaire   +1 more source

Pavement Pre- and Post-Treatment Performance Models Using LTPP Data

2012
This paper determines that pavement performance in International Roughness Index (IRI) is affected by exogenous interventions such as pavement age, precipitation level, freeze-thaw level, and lower level preservation maintenance strategies. An exponential function of pavement age was used to represent pavement IRI performance curves.
Lu, Pan, Tolliver, Denver, Lu, Pan, Tolliver, Denver   +3 more
openaire   +1 more source