Introductory technical guidance for civil engineers, construction managers and construction inspectors interested in construction of reinforced portland cement concrete pavement for streets, highways, bridges and other applications. Here is what is discussed: 1. INTRODUCTION 2. SLIPFORM CONSTRUCTION 3. REINFORCEMENT CHECKLIST 4. PLACEMENT OF DOWELS 5. DOWEL CHECKLIST 6. DOWEL SPACING 7. DOWEL PLACEMENT CHECKLIST 8. DOWELLED CONTRACTION JOINTS 9. CONTRACTION JOINT DOWEL CHECKLIST 10. DOWELED CONSTRUCTION JOINTS 11. DOWELS IN CONSTRUCTION JOINT CHECKLIST 12. ALIGNMENT OF DOWELS 13. DOWEL ALIGNMENT CHECKLIST 14. PLACEMENT OF TIE BARS 15. TIEBAR CHECKLIST.
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, highway engineers and other professional engineers and construction managers interested in reinforcement of portland cement concrete pavement for streets and highways. Here is what is discussed: 1. INTRODUCTION, 2. SLIPFORM CONSTRUCTION, 3. REINFORCEMENT CHECKLIST, 4. PLACEMENT OF DOWELS, 5. DOWEL CHECKLIST, 6. DOWEL SPACING, 7. DOWEL PLACEMENT CHECKLIST, 8. DOWELLED CONTRACTION JOINTS, 9. CONTRACTION JOINT DOWEL CHECKLIST, 10. DOWELED CONSTRUCTION JOINTS, 11. DOWELS IN CONSTRUCTION JOINT CHECKLIST, 12. ALIGNMENT OF DOWELS, 13. DOWEL ALIGNMENT CHECKLIST, 14. PLACEMENT OF TIE BARS, 15. TIEBAR CHECKLIST.
This book (in three volumes) comprises the proceedings of the Fifth Conference of Transportation Research Group of India (CTRG2019) focusing on emerging opportunities and challenges in the field of transportation of people and freight. The contents of the book include characterization of conventional and innovative pavement materials, operational effects of road geometry, user impact of multimodal transport projects, spatial analysis of travel patterns, socio-economic impacts of transport projects, analysis of transportation policy and planning for safety and security, technology-enabled models of mobility services, etc. This book will be beneficial to researchers, educators, practitioners and policymakers alike.
Load transfer restoration (LTR) is a rehabilitation technique for increasing the load transfer capability of existing jointed portland cement concrete pavement by placement of dowel bars or other mechanical devices across joints and/or cracks that exhibit poor load transfer.
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.
Transverse joints are placed in portland cement concrete pavements to control the development of random cracking due to stresses induced by moisture and thermal gradients and restrained slab movement. These joints are strengthened through the use of load transfer devices, typically dowel bars, designed to transfer load across the joint from one pavement slab to the next. Epoxy coated steel bars are the materials of choice at the present time, but have experienced some difficulties with resistance to corrosion from deicing salts. The research project investigated the use of alternative materials, dowel size and spacing to determine the benefits and limitations of each material. In this project two types of fiber composite materials, stainless steel solid dowels and epoxy coated dowels were tested for five years in side by side installation in a portion of U.S. 65 near Des Moines, Iowa, between 1997 and 2002. The work was directed at analyzing the load transfer characteristics of 8-in. vs. 12-in. spacing of the dowels and the alternative dowel materials, fiber composite (1.5- and 1.88-in. diameter) and stainless steel (1.5-in. diameter), compared to typical 1.5-in. diameter epoxy-coated steel dowels placed on 12-in. spacing. Data were collected biannually within each series of joints and variables in terms of load transfer in each lane (outer wheel path), visual distress, joint openings, and faulting in each wheel path. After five years of performance the following observations were made from the data collected. Each of the dowel materials is performing equally in terms of load transfer, joint movement and faulting. Stainless steel dowels are providing load transfer performance equal to or greater than epoxy-coated steel dowels at the end of five years. Fiber reinforced polymer (FRP) dowels of the sizes and materials tested should be spaced no greater than 8 in. apart to achieve comparable performance to epoxy coated dowels. No evidence of deterioration due to road salts was identified on any of the products tested. The relatively high cost of stainless steel solid and FRP dowels was a limitation at the time of this study conclusion. Work is continuing with the subject materials in laboratory studies to determine the proper shape, spacing, chemical composition and testing specification to make the FRP and stainless (clad or solid) dowels a viable alternative joint load transfer material for long lasting portland cement concrete pavements.
