This publication provides introductory technical guidance for civil engineers and construction managers interested in elastic layered methods of portland cement concrete and overlay pavement Design. Here is what is discussed: 1. PORTLAND CEMENT CONCRETE PAVEMENTS, 2. OVERLAY PAVEMENTS.

This publication provides introductory technical guidance for civil engineers and construction managers interested in elastic layered methods of portland cement concrete and overlay pavement Design. Here is what is discussed: 1. PORTLAND CEMENT CONCRETE PAVEMENTS, 2. OVERLAY PAVEMENTS.

Introductory technical guidance for civil engineers interested in elastic layered methods of flexible pavement design. Here is what is discussed: 1. BASIS OF PAVEMENT DESIGN 2. VEHICULAR TRAFFIC 3. ELASTIC MODULI OF PAVEMENT MATERIALS 4. DESIGN CRITERIA 5. FLEXIBLE PAVEMENT DESIGN.

Introductory technical guidance for civil engineers and construction managers interested in design and construction of pavement for streets and highways. This guidance comes in two volumes. This volume contains the following: 15. PERFORMANCE PROBLEMS WITH PAVEMENTS 1 16. CONSOLIDATION, FINISHING AND CURING PORTLAND CEMENT CONCRETE PAVING 17. CONSTRUCTION AND CONTRACTION JOINTS IN PORTLAND CEMENT CONCRETE PAVEMENT 18. MATERIALS, PRODUCTION AND MIXING FOR PORTLAND CEMENT PAVEMENT 19. PERMEABLE CONCRETE PAVEMENT 20. REINFORCEMENT AND LOAD TRANSFER FOR PORTLAND CEMENT CONCRETE PAVEMENT 21. ELASTIC LAYERED METHODS OF PORTLAND CEMENT CONCRETE OVERLAY PAVEMENT DESIGN165 22. RESIN MODIFIED PAVEMENT 23. RIGID PAVEMENT DESIGN 24. REPAIR OF RIGID PAVEMENTS 25. SOIL STABILIZATION FOR PAVEMENTS 26. CONSTRUCTION METHODS FOR SOIL STABILIZED PAVEMENTS 27. TACK COAT FOR PAVEMENT.

Introductory technical guidance for civil engineers and construction managers interested in design and construction of pavement for streets and highways. This guidance comes in two volumes. This volume contains the following:15. PERFORMANCE PROBLEMS WITH PAVEMENTS116. CONSOLIDATION, FINISHING AND CURING PORTLAND CEMENT CONCRETE PAVING17. CONSTRUCTION AND CONTRACTION JOINTS IN PORTLAND CEMENT CONCRETE PAVEMENT18. MATERIALS, PRODUCTION AND MIXING FOR PORTLAND CEMENT PAVEMENT19. PERMEABLE CONCRETE PAVEMENT20. REINFORCEMENT AND LOAD TRANSFER FOR PORTLAND CEMENT CONCRETE PAVEMENT21. ELASTIC LAYERED METHODS OF PORTLAND CEMENT CONCRETE OVERLAY PAVEMENT DESIGN16522. RESIN MODIFIED PAVEMENT18723. RIGID PAVEMENT DESIGN24. REPAIR OF RIGID PAVEMENTS25. SOIL STABILIZATION FOR PAVEMENTS26. CONSTRUCTION METHODS FOR SOIL STABILIZED PAVEMENTS27. TACK COAT FOR PAVEMENT.

Pavements need constant rehabilitation when they deteriorate with time and approach the end of their expected service lives. Overlay is the most prevalent treatment that restores its desirable condition and extends its life span of serviceability, especially for roads subjected to moderate and heavy traffic. Overlay composite design remains a major challenge due to difficulties in characterizing the complex behavior and assessing the existing condition of a combination of asphalt concrete (AC) and Portland cement concrete (PCC) layers over a soil subgrade. Deflection based design using falling weight deflectometer (FWD) deflection data offers an effective approach for overlay thickness design for composite pavements. It utilizes the deflection measurements of the pavement surface which can be used to back-calculate the subgrade and overlay composite properties and allows one to estimate the structural capacity of the existing pavement. However, the prevailing deflection based design procedure generally treats the AC and PCC as a single layer during the back-calculation and, as a result, frequently leads to less than satisfactory, usually over-conservative, design for overlay composites. The principal objective of this research is to develop improved FWD deflection based design strategies for overlay composite pavements. It is proposed that a three-layer linear elastic model be used for back-calculation of the moduli of all three layers: subgrade, PCC and AC. The structural capacity of the existing pavement is estimated using pavement surface deflections measured by FWD, the most commonly used pavement non-destructive testing (NDT) device. In the present study actual FWD deflection data for eleven construction projects are used to back-calculate the moduli of three layers. The three-layer model allows the composite pavement structure to be modeled more accurately. The elastic moduli of the asphalt concrete layer and the underlying Portland cement concrete can both be back-calculated, instead of combining them into one. The results show that the three-layer model produces higher effective thickness than the two-layer model for the same pavement structure, thereby reducing the required overlay thickness. However, there are a number of factors that can strongly influence the final overlay design thickness. The effects of computational error tolerances in back-calculation, temperature at FWD testing and variations in FWD deflection data are found significant and may cause unreliable design results and hence, two strategies to avoid excessively large or small back-calculated moduli are also explored: imposing moduli bounds and relaxing the precision convergence; they have been found very effective in mitigating the effect of large variations in deflection data. The statistical variations observed in the overlay design are also evaluated and two models are explored to improve the overall design procedure from the statistical perspective: Monte Carlo method and Point Estimation method. The effective thicknesses of existing pavement computed from reliability analysis are similar to those obtained from the proposed design method. This demonstrates the validity of the proposed design method and also the applicability of reliability based design in case the statistical parameters are available or can be obtained from engineering judgment.

Introductory technical guidance for civil engineers and other professional engineers and construction managers interested in pavement engineering for streets and highways. Here is what is discussed: 1. BASIS OF PAVEMENT DESIGN, 2. VEHICULAR TRAFFIC, 3. ELASTIC MODULI OF PAVEMENT MATERIALS, 4. DESIGN CRITERIA, 5. FLEXIBLE PAVEMENT DESIGN.

Introductory technical guidance for civil engineers, highway engineers and other professional engineers and construction managers interested in overlays for continuously reinforced portland cement concrete pavements. Here is what is discussed: 1. INTRODUCTION, 2. TYPES OF OVERLAYS INVOLVING CRC PAVEMENT, 3. GENERAL APPROACHES TO OVERLAY DESIGN, 4. CRC OVERLAY TYPES AND PERFORMANCE.

Design related project level pavement management - Economic evaluation of alternative pavement design strategies - Reliability / - Pavement design procedures for new construction or reconstruction : Design requirements - Highway pavement structural design - Low-volume road design / - Pavement design procedures for rehabilitation of existing pavements : Rehabilitation concepts - Guides for field data collection - Rehabilitation methods other than overlay - Rehabilitation methods with overlays / - Mechanistic-empirical design procedures.

Introductory technical guidance for civil engineers and construction managers interested in resurfacing continuously reinforced portland cement concrete pavement for streets and highways.