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| Author | : Amir Naoum Hanna |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 2003 |
| Genre | : Pavements, Concrete |
| ISBN | : |
"This digest summarizes the findings from NCHRP Project 4-20C, 'Aggregate Tests Related to Performance of Portland cement concrete Pavements: State of the Knowledge.' It was prepared by Dr. Amir N. Hanna ... from the contractor's final report authored by Dr. Kevin J. Folliard and Mr. Kurt D. Smith ..."--Page 1
| Author | : F. Pacheco-Torgal |
| Publisher | : Elsevier |
| Total Pages | : 671 |
| Release | : 2013-09-30 |
| Genre | : Technology & Engineering |
| ISBN | : 0857096907 |
The civil engineering sector accounts for a significant percentage of global material and energy consumption and is a major contributor of waste material. The ability to recycle and reuse concrete and demolition waste is critical to reducing environmental impacts in meeting national, regional and global environmental targets. Handbook of recycled concrete and demolition waste summarises key recent research in achieving these goals.Part one considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants and the economics of managing construction and demolition waste. Part two reviews key steps in handling construction and demolition waste. It begins with a comparison between conventional demolition and construction techniques before going on to discuss the preparation, refinement and quality control of concrete aggregates produced from waste. It concludes by assessing the mechanical properties, strength and durability of concrete made using recycled aggregates. Part three includes examples of the use of recycled aggregates in applications such as roads, pavements, high-performance concrete and alkali-activated or geopolymer cements. Finally, the book discusses environmental and safety issues such as the removal of gypsum, asbestos and alkali-silica reaction (ASR) concrete, as well as life-cycle analysis of concrete with recycled aggregates.Handbook of recycled concrete and demolition waste is a standard reference for all those involved in the civil engineering sector, as well as academic researchers in the field. - Summarises key recent research in recycling and reusing concrete and demolition waste to reduce environmental impacts and meet national, regional and global environmental targets - Considers techniques for managing construction and demolition waste, including waste management plans, ways of estimating levels of waste, the types and optimal location of waste recycling plants - Reviews key steps in handling construction and demolition waste
| Author | : |
| Publisher | : |
| Total Pages | : 162 |
| Release | : 2006 |
| Genre | : Pavements, Concrete |
| ISBN | : |
This project investigated the properties and performance of the products used for spall repair of concrete pavement. A survey of Texas Department of Transportation (TxDOT) maintenance engineers produced a roster of 10 repair materials currently in use in the state. After identifying the key characteristics of a successful repair material, a laboratory testing program was developed to evaluate the properties of the repair materials. These materials were tested for strength, compatibility, and bond to quantify their characteristics relative to those products known to work well.
| Author | : |
| Publisher | : |
| Total Pages | : 326 |
| Release | : 2006 |
| Genre | : Hydration |
| ISBN | : 9780965231091 |
Manual of integrated material and construction practices for concrete pavements.
| Author | : Imad L. Al-Qadi |
| Publisher | : |
| Total Pages | : 1072 |
| Release | : 2006 |
| Genre | : Technology & Engineering |
| ISBN | : |
This collection contains 87 papers presented at the 2006 Airfield and Highway Pavements Specialty Conference, held in Atlanta, Georgia, April 30-May 3, 2006.
| Author | : |
| Publisher | : |
| Total Pages | : 228 |
| Release | : 2000 |
| Genre | : PaveSpec 3.0 (Computer file) |
| ISBN | : |
"The current performance-related specifications (PRS) methodology has been under development by the Federal Highway Administration (FHWA) for several years and has now reached a level at which it can be implemented by State highway agencies. PRS for highway pavements depend heavily on performance prediction models to determine the impact of varying levels of construction quality. This study focused on the improvement of the key distress and smoothness prediction models used in the PRS for jointed plain concrete pavement (JPCP). Performance models for transverse joint faulting, transverse slab cracking, transverse joint spalling, and smoothness (International Roughness Index [MI]) were evaluated and then improved substantially. This was accomplished using a comprehensive national database of JPCP performance data, along with sound statistical and engineering techniques. Performance model calibration guidelines were also developed so that a State cari calibrate any of these models specifically to its pavement performance data. The PaveSpec PRS demonstration software was upgraded to Version 3.0 under this study. Some of the specific improvements incorporated in PaveSpec 3.0 include: 1) incorporation ofyim proved distress indicator models, as well as the ability to calibrate or modify the default models, 2) sensitivity analysis capabilities, 3) expected pay charts, and 4) online help. Appendix A of this report contains a complete updated PaveSpec User's Guide"--Technical report documentation page
| Author | : B. Frank McCullough |
| Publisher | : |
| Total Pages | : 118 |
| Release | : 1993 |
| Genre | : Aggregates (Building materials) |
| ISBN | : |
This report focuses on aggregates used in the construction of continuously reinforced concrete pavements (CRCP). Specific chapters address (1) past research regarding aggregates used in CRCP, (2) field and laboratory investigations of CRCP, and (3) CRCP behavior and distress. The report reviews such topics as spalling and punchout distresses in continuously reinforced and jointed pavements, aggregate shape characterization using fractals, and the determination of sawcut depth using fractal analysis. Some of these activities relate directly to improving pavement performance, regardless of aggregate type used for construction.
| Author | : |
| Publisher | : |
| Total Pages | : 112 |
| Release | : 2005 |
| Genre | : HIPERPAV II (Computer file) |
| ISBN | : |
This report documents enhancements incorporated in the (HIgh PERformance PAVing) HIPERPAV II software. Enhancements made within this project include the addition of two major modules: a module to predict the performance of jointed plain concrete pavement (JPCP) as affected by earlyage factors, and a module to predict the early-age behavior (first 72 hours) and early life (up to 1 year) of continuously reinforced concrete pavement (CRCP). Two additional Federal Highway Administration (FHWA) studies were also incorporated: one that predicts dowel bearing stresses as a function of environmental loading during the early age, and a module for optimization of concrete paving mixes as a function of 3-day strength, 28-day strength, and cost. Additional functionality to the software was also incorporated by reviewing and prioritizing the feedback provided by users of the first generation of the software, HIPERPAV I.
| Author | : Emmanuel Bonsu Owusu-Antwi |
| Publisher | : |
| Total Pages | : 244 |
| Release | : 1999 |
| Genre | : Pavements |
| ISBN | : |
