Download Free Partial Depth Repair Of Jointed Pcc Pavements Book in PDF and EPUB Free Download. You can read online Partial Depth Repair Of Jointed Pcc Pavements and write the review.

The installation of durable patches on jointed portland cement concrete pavement using several types of cast-in-place concrete, is described. The recommended procedures for pavement preparation and patch installation are given, and additional maintenance procedures as cleaning and sealing joints and assuring proper drainage are briefly discussed. The successful evaluation of proprietary products for repair concretes through a laboratory determination of concrete properties, field use of acceptable products, and the assessment of performance data during and after installation is discussed. Included in this study were some of the cements, admixtures, and other special products for repair concretes, from a list maintained by the Materials Division of the Virginia Department of Highways & Transportation to provide assistance in the selection of the proprietary products. A production chart is presented as an aid in estimating the number of patches that can be installed during typical lane closure periods. Concretes with short curing times increased potential production, however, the selection of a repair product is acknowledged to also be dependent on factors such as cost and availability of materials. A procedure for installing precast patches for partial-depth repairs is described however; the rate of pavement preparation is too slow to make this procedure a viable alternative to cast-in-place patching.
This synthesis report will be of special interest to pavement engineers and pavement construction and maintenance personnel responsible for portland cement concrete (PCC) pavement joints. Still pertinent information from NCHRP Synthesis 19 (1973), as well as new or updated information in the areas of joint design, construction, and maintenance are included. This report of the Transportation Research Board records the state of the practice with respect to the design, construction, and maintenance of PCC pavement joints. In addition, information on joint materials and sealing, the control of water on and in pavements, and the evaluation of pavement joint performance is provided.
As Portland cement concrete (PCC) pavements age, longitudinal and transverse joints can exhibit signs of distress as a result of traffic loading, climatic variations, materials-related issues, and construction defects. Although only small areas are often involved, the joint distress can substantially disrupt traffic flow and increase pavement roughness, sacrificing consumer ride comfort. When immediate action is required, temporary repairs are often made using readily available materials, such as cold mix or other asphalt materials. These temporary materials are often replaced with more permanent materials to reestablish the integrity and functionality of the concrete pavement. The goal of this project is to provide a guide for agencies to establish an effective joint repair program. The final report reviews the background information explaining why this research was performed, summarizes the findings from previous similar research studies, details how the patches were constructed and how they performed, and provides a Product Matrix that includes installation requirements, equipment needed, along with the life expectancy of the products to compare and guide the reader through product selection.
"This synthesis will be of a special interest and usefulness to pavement designers, materials and maintenance engineers, and others seeking information on the causes and prevention of joint problems in portland cement concrete pavements. Detailed information is also presented on the rehabilitation of joint defects."--Avant-propos.
The deterioration of jointed portland cement concrete (PCC) pavements on the interstate system in Virginia has created a need for full-depth and partial-depth repairs. In this report, efforts related to full-depth repairs are described and discussed, Such repairs have utilized both cast-in-place and precast materials. Rapid and permanent repairs have been achieved using procedures as stress relief, cast-in-place restoration, precast replacement, and cast-in place replacement. It is recommended that these procedures be continued as warranted by pavement repair needs. They should be used with detailed guidance in both state force and contract work. In repair work, assurance should be made that the supervisors and inspectors are not only knowledgeable of the recommended procedures but also are aware of potential problems that can result from faulty applications. Where poor drainage has contributed to pavement deterioration, improvement of drainage facilities and the use of pavement undersealing should be a part of the total rehabilitation effort to assure a satisfactory service life of both existing and repaired pavement segments.
This aim of this handbook is to assist U.S. Federal Highway Administration area engineers when they make highway construction inspections. It can also be used when reviewing specifications, supplemental specifications, and special provisions during the PS & E stage of a project. Information contained herein is a guide and is not intended as a standard. The number of different rehabilitation techniques covered in this handbook are limited at this time. Additional construction techniques for rehabilitating rigid and flexible pavements will be added and the handbook expanded at a later date.
The Strategic Highway Research Program's project H-106, the partial-depth spall-repair experiment, is the most extensive effort to date to evaluate the performance of various rapid-setting materials and procedures used in the repair of partial-depth spalls in Portland cement concrete pavements. Four test installations consisting of a total of 1,607 patches, were constructed in 4 climatic zones, and the experiment investigated the performance of several cementitious, polymeric, and bituminous patching materials, and procedures used in repairing jointed concrete pavements. The techniques included the following: saw and patch, chip and patch, mill and patch, waterblast and patch, and minimal praparation clean and patch under adverse conditions. The patch performance has been good: only 2.3% of the patches have failed.