1384, Strength and Deformation Characteristics of Pavement Structures. This paper appears in Transportation Research Record No.Find a library where document is available.Numerical examples indicate that (a) the moduli backcalculated by the suggested SID method compare well with the results from MODULUS, which is a data base backcalculation program, and other developed iterative backcalculation programs (b) the SID is a quickly converging procedure, and the influence of seed values, for a relatively wide range, on the derived results is negligible and (c) it is able to backcalculate pavement layer thicknesses in addition to layer moduli. An iterative method based on the system identification (SID) scheme is developed, and the SID program is used in conjunction with a multilayer elastic model (BISAR program) to backcalculate pavement layer properties. The technique used to achieve a convergence of the measured and predicted deflection basins plays an important role in all backcalculation approaches. In recent years pavement structural evaluation has relied increasingly on determining material properties by nondestructive deflection testing and backcalculation procedures. Terms and conditions page.SYSTEM IDENTIFICATION METHOD FOR BACKCALCULATING PAVEMENT LAYER PROPERTIES Introduction on PAVERS & pavement design. This concept enables you to exploit all the comprehensive advancements in technology with maximum of ease to use. The User input into future developments and the ability to incorporate new features with strong and functional designs really makes Pavers ® state-of-the-art. Sharing knowledge is essential to innovate and improve the tools and membership of the PAVERS User Group is automatic upon purchase of the system. Hence, the effect of different pavement materials, strengths, load or complex load mixes can quickly be explored. It is a complete software package that allows the modern pavement engineer to define or use calibrated performance models and failure criteria for all pavement layers and subgrade in his pavement design and H/FWD assessment projects.

The tool allows to back-calculate FWD-deflections, model the pavement structure, (re-)design the pavement, determine the load-carrying capacity (in terms of ACN/PCN), calculate the remaining pavement life and determine feasible rehabilitation measures. The PAVERS Team strives to make state-of-the-art pavement tools designed specifically for FWD evaluation and Design of road, industrial and airport pavements. Pavers is a premium analytical pavement design and evaluation tool which provides you with an edge over your competition. PAVERS - Premium Pavement Design Software with Powerful Libraries

Pavement backcalculation bisar