Download or read book Laboratory Testing of High Performance Repair Materials for Pavements and Bridge Decks written by Kamran Amini and published by . This book was released on 2015 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of numerous freezing and thawing cycles happening during the year in the state of Ohio, pavement partial-depth patching has become a common maintenance activity in this state. The Ohio Department of Transportation (ODOT) has a need for durable, more permanent high performing pavement and bridge deck materials that allow for a faster repair and for user safety. However, new or proprietary products are difficult to specify unless incorporated into a construction project for research purposes or procurement of the product complies with the ODOT's direct purchasing requirements.This research project was conducted in three main phases, literature review and selecting the proper materials, field patching and inspection of the materials, and laboratory testing of the materials to compare the results to the field inspections. All these phases were conducted in order to specify for use in future ODOT construction, based on the field and laboratory performances of the products. As the last phase of this research project, this thesis investigates the properties and performance of the selected products used for partial-depth repair of concrete pavement in a laboratory. The materials were tested for freeze-thaw, modulus of elasticity, strength, shrinkage, ultrasonic pulse velocity, mass change, and scaling damage to quantify their characteristics relative to those products known to work well. The objective of this study was to document the investigation of the lab testing of selected repair materials for partial-depth repair. The investigation determined the acceptable laboratory tests for comparative analysis of existing repair materials. Eventually, the investigated materials were ranked based on their overall performance considering economic aspect and their laboratory and field performances.

Download or read book Evaluation of High Performance Pavement and Bridge Deck Wearing Surface Repair Materials written by Norbert J. Delatte and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project provided for a laboratory and field testing of several high performance repair materials for pavements and concrete bridge decks. The main purpose was to provide ODOT with materials and procedures to shorten road and bridge closures. The project was relatively complex with several phases. First, the repair materials for testing and the locations needed to be selected. This required a thorough review of the available literature, including the practices used by other state transportation agencies. Next, the repair materials were installed on pavements and bridge decks on three separate installation projects in ODOT District 8, two by the Great Lakes Construction Company (TGLCC), and two with ODOT maintenance crews. There was a cold weather installation on bridge decks and concrete pavements in March 2014, with two products rated for low temperatures, followed by a larger installation on concrete pavement with four other products in June 2014. The first two installations were carried out by TGLCC. These installations were monitored for two years from the first installation. In June 2015, five bridge deck patches with two materials were installed by the ODOT maintenance crews. In addition, a parallel laboratory testing program of the selected materials was carried out to evaluate performance and engineering properties. Finally, the specification recommendations were developed based on the literature review and project results. The phases of the project are documented in five separate graduate theses published at Cleveland State University

Download or read book Selection of High Performance Repair Materials for Pavements and Bridge Decks written by Alice E. Sommerville and published by . This book was released on 2014 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The Ohio Department of Transportation has identified the need to specify durable, more permanent high performing pavement and bridge deck patching materials. These materials need to allow for expedited pavement and bridge deck wearing surface repair for worker and user safety. Currently, either temporary or generally specified in-kind or like materials are being used to perform pavement patching. Usually, the Department provides generically specified cementitious or cold mix asphalt materials for patching wearing surfaces with varied performance characteristics. Current products used for these repairs are generally those that have been used for many decades for which competition exists. However, new or proprietary products are difficult to specify unless incorporated into a construction project for research purposes, an approved equal is permitted, or procurement of the product complies with the Department's direct purchasing requirements. Consequently, this creates a situation where the desired product is precluded from use. The objective of this study was to specify durable, more permanent high performing pavement and bridge deck patching products that allow for expediting pavement and bridge deck wearing surface repair for worker and user safety. Aspects examined in this study include: history on causes of pavement patching failures, comparison of laboratory and field testing criteria from other organizations, product classifications based on material properties, analysis of available patching products, and identifying products to be tested based on previous research. The products chosen for the winter patching project were FlexSet and MG Krete. They have been placed in the field already and were chosen due to their excellent low temperature range, compliance of most ODOT and ASTM 928 laboratory standards and great previous field testing results from ERDC and NTPEP. The other four products recommended for summer placement are Delpatch, RepCon 928, SR-2000 and Optimix. They displayed characteristics desirable for further testing and represent a range of material classifications. Recommended laboratory standards were specified based on current ODOT requirements and past research and are listed in this thesis. Field recommendations consisted of having the product representative present on site during placement and to document all conditions of the patch hole, surrounding pavement and weather conditions.

Download or read book Department of Transportation and Related Agencies Appropriations for 1997 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1996 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research and Technology Program 1996 2000 written by United States. Federal Highway Administration and published by . This book was released on 1996 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Materials and Pavement Prediction written by Eyad Masad and published by CRC Press. This book was released on 2018-07-16 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Materials and Pavement Performance Prediction contains the papers presented at the International Conference on Advances in Materials and Pavement Performance Prediction (AM3P, Doha, Qatar, 16- 18 April 2018). There has been an increasing emphasis internationally in the design and construction of sustainable pavement systems. Advances in Materials and Pavement Prediction reflects this development highlighting various approaches to predict pavement performance. The contributions discuss links and interactions between material characterization methods, empirical predictions, mechanistic modeling, and statistically-sound calibration and validation methods. There is also emphasis on comparisons between modeling results and observed performance. The topics of the book include (but are not limited to): • Experimental laboratory material characterization • Field measurements and in situ material characterization • Constitutive modeling and simulation • Innovative pavement materials and interface systems • Non-destructive measurement techniques • Surface characterization, tire-surface interaction, pavement noise • Pavement rehabilitation • Case studies Advances in Materials and Pavement Performance Prediction will be of interest to academics and engineers involved in pavement engineering.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laboratory Study of High Performance Curing Compounds for Concrete Pavement written by Ramsey Kropp and published by . This book was released on 2012 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Laboratory Study of High Performance Curing Compound for Concrete Pavements written by Ramsey Kropp and published by . This book was released on 2012 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Trials of Rapid Setting Repair Materials written by Prashant Ram and published by . This book was released on 2016-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the present study was to identify the critical properties (based on the laboratory tests) that could be correlated to the field performance of the rapid setting repair materials.The first phase of the project involved laboratory evaluation of six commercial rapid-setting repair materials (RMs). When tested in the laboratory, all but two exhibited acceptable rates of strength gain and three displayed relatively poor freeze-thaw resistance. All the RMs exhibited acceptable values for free-shrinkage, high resistance to cracking and good bond to substrate concrete. The resistance to chloride ion penetration of one of the RMs was very poor.The second phase of the project involved field installation and performance evaluation of the RMs. It was seen that while, in most cases, the controlled laboratory conditions yielded consistent mixes and acceptable performance, the properties of mixes produced on site were more variable. This was the result of somewhat uncontrolled changes in the amount of aggregate extension used, moisture content of the aggregates, amount water added and ambient temperature conditions. Follow-up inspection of the repair patches indicated that all the patches except one underwent premature failures (primarily cracking and edge de-bonding). The ambient temperature during the repairs was around 10°C. This led to an extended set-time for all the materials. The 12-hr compressive strengths values of the specimens from the field-mixes were occasionally lower than the 4-hr compressive strength values of laboratory mixes. Since the repairs were open to traffic after approximately 4 hours after placement, the low early age strengths could be a potential reason for premature failures of some of the patches.In general, several materials were found to be very sensitive to excess water added during mixing, resulting in a significant impact on the durability properties - especially the freeze-thaw resistance. In the field, for most of the materials, the consistency of the mixes varied across batches - this can be attributed to the variations in the aggregate extension adopted, mix-water added and the moisture content of the aggregates used. Construction-related issues (consolidation and finishing) also played an important role in the performance of the repair patches.

Download or read book Performance of Bituminous and Hydraulic Materials in Pavements written by S.F. Brown and published by Routledge. This book was released on 2017-10-02 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains contributions from international experts, reflecting the rapid advances in the design of new improved bitumen and hydraulic bound composites, the trends in the use of waste and recycled materials and up-to-date methods of testing and evaluation.

Download or read book Investigation Into Improved Pavement Curing Materials and Techniques written by Kejin Wang (Civil engineer) and published by . This book was released on 2002 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete curing is closely related to cement hydration, microstructure development, and concrete performance. Application of a liquid membrane-forming curing compound is among the most widely used curing methods for concrete pavements and bridge decks. Curing compounds are economical, easy to apply, and maintenance free. However, limited research has been done to investigate the effectiveness of different curing compounds and their application technologies. No reliable standard testing method is available to evaluate the effectiveness of curing, especially of the field concrete curing. The present research investigates the effects of curing compound materials and application technologies on concrete properties, especially on the properties of surface concrete. This report presents a literature review of curing technology, with an emphasis on curing compounds, and the experimental results from the first part of this research-lab investigation. In the lab investigation, three curing compounds were selected and applied to mortar specimens at three different times after casting. Two application methods, single- and double-layer applications, were employed. Moisture content, conductivity, sorptivity, and degree of hydration were measured at different depths of the specimens. Flexural and compressive strength of the specimens were also tested. Statistical analysis was conducted to examine the relationships between these material properties. The research results indicate that application of a curing compound significantly increased moisture content and degree of cement hydration and reduced sorptivity of the near-surface-area concrete. For given concrete materials and mix proportions, optimal application time of curing compounds depended primarily upon the weather condition. If a sufficient amount of a high-efficiency-index curing compound was uniformly applied, no double-layer application was necessary. Among all test methods applied, the sorptivity test is the most sensitive one to provide good indication for the subtle changes in microstructure of the near-surface-area concrete caused by different curing materials and application methods. Sorptivity measurement has a close relation with moisture content and degree of hydration. The research results have established a baseline for and provided insight into the further development of testing procedures for evaluation of curing compounds in field. Recommendations are provided for further field study.

Download or read book Ultra High Performance Concrete and Nanotechnology in Construction Proceedings of Hipermat 2012 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials written by Insert Name Here and published by kassel university press GmbH. This book was released on 2012-01-01 with total page 1059 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Public Roads written by and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Concretes and Their Structural Applications Volume II written by Zhigang Zhang and published by Frontiers Media SA. This book was released on 2023-07-10 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Laboratory and Field Evaluation of Required Material Properties for Concrete Repairs written by Daniel W. Traub and published by . This book was released on 1996 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nondestructive Testing to Identify Concrete Bridge Deck Deterioration written by and published by Transportation Research Board. This book was released on 2013 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: " TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R06A-RR-1: Nondestructive Testing to Identify Concrete Bridge Deck Deterioration identifies nondestructive testing technologies for detecting and characterizing common forms of deterioration in concrete bridge decks.The report also documents the validation of promising technologies, and grades and ranks the technologies based on results of the validations.The main product of this project will be an electronic repository for practitioners, known as the NDToolbox, which will provide information regarding recommended technologies for the detection of a particular deterioration. " -- publisher's description.