Author: Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 260
Book Description
CRREL Report
Author: Special Report
Author: Accelerated Pavement Testing
Author: Athar SaeedPublisher: Transportation Research Board
ISBN: 030908783X
Category : Pavements
Languages : en
Pages : 57
Book Description
Modeling of Mn/ROAD Test Sections with the CRREL Mechanistic Pavement Design Procedure
Author: Susan R. BiglPublisher: DIANE Publishing
ISBN: 1428913955
Category : Frost heaving
Languages : en
Pages : 50
Book Description
The U.S. Army Cold Regions Research and Engineering Laboratory is developing a mechanistic pavement design procedure for use in seasonal frost areas. The procedure was used to predict pavement performance of some test sections under construction at the Mn/ROAD facility. Simulations were conducted in three phases, investigating the effects on predictions of water table position, subgrade characteristics, asphalt model, and freeze season characteristics. The procedure predicted significantly different performance by the different test sections and highly variable results depending on the performance model applied. The simulated performance of the tests sections also was greatly affected by the subgrade conditions, e.g., density, soil moisture, and water table depth. In general, predictions for the full depth asphalt sections indicate that they will not fail due to cracking, but two of the three criteria for subgrade rufting indicate failure before the five or 10 year design life of the sections. Conventional sections are predicted not to fail due to subgrade rutting; however, sections including the more frost susceptible bases in their design are predicted to fail due to asphalt cracking relatively early in their design life, and sections with nonfrost susceptible bases are predicted to fail towards the end of the design life.
Arctic Research of the United States
Author: Resilient Modulus Testing of Materials from Mn/ROAD, Phase 1
Author: Publisher: DIANE Publishing
ISBN: 1428914080
Category : Pavements
Languages : en
Pages : 31
Book Description
Significant Findings from Full-scale Accelerated Pavement Testing
Author: Wynand JvdM. SteynPublisher: Transportation Research Board
ISBN: 0309223660
Category : Technology & Engineering
Languages : en
Pages : 257
Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 433: Significant Findings from Full-Scale Accelerated Pavement Testing documents and summarizes significant findings from the various experimental activities associated with full-scale accelerated pavement testing (f-sAPT) programs that have taken place between 2000 and 2011. The report also identifies gaps in knowledge related to f-sAPT and where future research may be needed. NCHRP Synthesis 433 is designed to expand the f-sAPT base of knowledge documented in NCHRP Syntheses 325 and 235, both with the same title of Significant Findings from Full-Scale Accelerated Pavement Testing. f-sAPT is the controlled application of a wheel loading, at or above the appropriate legal load limit, to a pavement system to determine pavement response in a compressed time period. The acceleration of damage is achieved by one or more of the following factors: increased repetitions, modified loading conditions, imposed climatic conditions, and thinner pavements with a decreased structural capacity which have shorter design lives"--
Repetitive Loading Tests on Membrane-enveloped Road Sections During Freeze-thaw Cycles
Author: North SmithPublisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 32
Book Description
Author: 
Author: