Download or read book Evaluation of Fiber reinforced Unbonded Overlay written by Tim Chojnacki and published by . This book was released on 2000 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Repair Evaluation Maintenance and Rehabilitation Research Program Overlays on Horizontal Concrete Surfaces Case Histories written by and published by . This book was released on 1994 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study documents the current practices for overlaying horizontal concrete surfaces as a first phase in the development of performance criteria for concrete overlays. The case histories presented were typically for overlays completed within the last 10 years and located at Corps of Engineers civil works projects. Overlays documented included bonded conventional, low-slump, fly-ash, silica-fume, polymer-modified, and fiber-reinforced concretes. Unbonded overlays were also documented. Although the information obtained for each case history varied and was sometimes limited, an attempt was made to provide the following basic information for each repair: (a) project description, (b) cause and extent of damage, (c) description of repair materials and procedures, (d) cost, and (e) performance of repair. The extension of service life resulting from using one type of overlay in lieu of another was not evident in the case histories examined, with the exception of where fiber-reinforced concrete was used to resist abrasion erosion (repair failed). Shrinkage and reflective cracks that develop in polymer-modified concrete overlays and overlays containing polypropylene fibers are more likely to be smaller in width and length than those of similiar cracks in conventional and low-slump concrete overlays. Cracks in concretes containing fibers are generally smallest.
Download or read book Evaluation of Unbonded Portland Cement Concrete Overlays written by and published by . This book was released on 1999 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Army RD A written by and published by . This book was released on 1995 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professional publication of the RD & A community.
Download or read book Army RD A Bulletin written by and published by . This book was released on 1995 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Composite Pavement Unbonded Overlays written by James K. Cable and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, thin whitetopping has evolved as a viable rehabilitation technique for deteriorated asphalt cement concrete (ACC) pavements. Numerous projects have been constructed and tested; these projects allow researchers to identify the important elements contributing to the projects' successes. These elements include surface preparation, overlay thickness, synthetic fiber reinforcement usage, joint spacing, and joint sealing. Although the main factors affecting thin whitetopping performance have been identified by previous research, questions still existed as to the optimum design incorporating these variables. The objective of this research is to investigate the interaction between these variables over time. Laboratory testing and field-testing were planned in order to accomplish the research objective. Laboratory testing involved shear testing of the bond between the portland cement concrete (PCC) overlay and the ACC surface. Field-testing involved falling weight deflectometer deflection responses, measurement of joint faulting and joint opening, and visual distress surveys on the 9.6-mile project. The project was located on Iowa Highway 13 extending north from the city of Manchester, Iowa, to Iowa Highway 3 in Delaware County. Variables investigated included ACC surface preparation, PCC thickness, synthetic fiber reinforcement usage, and joint spacing. This report documents the planning, equipment selection, construction, field changes, and construction concerns of the project built in 2002. The data from this research could be combined with historical data to develop a design specification for the construction of thin, unbonded overlays.
Download or read book Evaluation of Non metallic Fiber Reinforced Concrete in PCC Pavements and Structures written by V. Ramakrishnan and published by . This book was released on 1997 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Performance Concrete Pavements written by and published by . This book was released on 2002 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Composite Pavement Unbonded Overlays written by James K. Cable and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, thin whitetopping has evolved as a viable rehabilitation technique for deteriorated asphalt cement concrete (ACC) pavements. Numerous projects have been constructed and tested, allowing researchers to identify the important elements contributing to the projects' successes. These elements include surface preparation, overlay thickness, synthetic fiber reinforcement usage, joint spacing, and joint sealing. Although the main factors affecting thin whitetopping performance have been identified by previous research, questions still existed as to the optimum design incorporating these variables. The objective of this research is to investigate the interaction between these variables over time. Laboratory testing and field testing were conducted to achieve the research objectives. Laboratory testing involved shear testing of the bond between the portland cement concrete (PCC) overlay and the ACC surface. Field testing involved falling weight deflectometer deflection responses, measurement of joint faulting and joint opening, and visual distress surveys on the 9.6 mile project. The project was located on Iowa Highway 13 extending north from the city of Manchester, Iowa to Iowa Highway 3 in Delaware County. Variables investigated include ACC surface preparation, PCC thickness, slab size, synthetic fiber reinforcement usage, and joint spacing. This report documents the planning, construction, and performance of each variable in the time period from summer 2002 through spring 2006. The project has performed well with only minor distress identification since its construction.
Download or read book Evaluation of fiber reinforced quick setting cement concrete written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidance Parameters and Recommendations for Rubblized Pavements written by and published by . This book was released on 2007 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development and Evaluation of High Performance Fiber Reinforced Concrete as a Repairing Material written by Manish Roy and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Fiber Reinforced Concrete written by Nick Rabalais and published by . This book was released on 1992 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study was conducted to evaluate the physical properties of plastic and hardened fiber reinforced concrete using three basic types of fibers: steel, fiberglass and polypropylene. Fibers have been shown to increase flexural and tensile strength, ductility and toughness of concrete. In the study, air content and water/cement ratio were varied to keep slump in a workable range (2 to 4 in.) and air contents at 5% +/- 1%. Mixes with fly ash and superplasticizers were also tested. The same cement and aggregate were used for all mixes. When used, fly ash and admixture type were the same also. Both 6 and 8 bag mixes were examined.
Download or read book Portland Cement Concrete Resurfacing written by Kenneth H. McGhee and published by Transportation Research Board. This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis report will be of special interest to pavement designers, materials engineers, and others seeking information on portland cement concrete resurfacings (overlays) placed over both portland and asphalt cement concrete pavements. Information is presented on the various practices in use for the design, material selection, and construction techniques associated with each pavement type. Additional information is provided on resurfacing experience and performance, including an Appendix cataloging more than 700 existing resurfacing projects in North America. Transportation agencies in the United States are continuing to develop pavement management systems which take an objective and structured approach to life-cycle cost analysis requirements for pavement rehabilitation project analysis. This report of the Transportation Research Board also discusses the considerations involved in the selection of technically feasible resurfacing alternatives. Based on the longitudinal experience of 375 resurfacing projects that were cataloged in 1982 and the more than 700 projects identified in 1993, much useful information on the performance characteristics of portland cement concrete resurfacing is presented.
Download or read book Overlays on Horizontal Concrete Surfaces written by Roy L. Campbell and published by . This book was released on 1994 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Fiber Dispersion Characteristics in Fiber Reinforced Composites written by T. Hayashi and published by . This book was released on 1988 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
