Download or read book Evaluation of the Effectiveness of Membrane Waterproofing for Concrete Bridge Decks written by Robert J. Carroll and published by . This book was released on 1973 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Effectiveness of Membrane Water Proofing for Concrete Bridge Decks written by Robert J. Caroll and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterproofing Membranes for Concrete Bridge Decks written by David G. Manning and published by Transportation Research Board. This book was released on 1995 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to research, specifications, materials, design, and construction engineers; contract and specification administrators; agency project managers and staff; and concrete bridge deck construction contractors. This synthesis describes the state of the practice with respect to the development and present status of waterproofing membranes for concrete bridge decks. This report of the Transportation Research Board describes the use of waterproofing systems applied to new bridge decks and the rehabilitation of deteriorated concrete bridge decks. In addition, this synthesis describes current practice with regard to methods for assessing the effectiveness of membranes, criteria for use, installation practices, and factors that affect the performance of waterproofing systems in new construction and rehabilitation. Suggestions for future research are also included.
Download or read book Performance Evaluation of Waterproofing Membrane Protective Systems for Concrete Bridge Decks written by Khossrow Babaei and published by . This book was released on 1983 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study develops a methodology for field appraisal and evaluates the effectiveness of three selected waterproofing membrane installations presently in service in the State of Washington. Based on the information obtained, none of the test installations had completely sealed the passage of salt into the concrete decks. "Active" and "uncertain" corrosion potentials existed at the rehabilitated portions; however, a decrease in corrosion activity since the time of rehabilitation was noted. Concrete deterioration after rehabilitation has occurred mainly within the boundaries of the repair work and original conrete, and it is more evident in areas with a shallower rebar depth. It is recommended that future research include a greater number of bridge decks. In addition, service life performance data should be obtained through long-range monitoring of the installations.
Download or read book Continuing Field Evaluation of Membrane Waterproofing for Concrete Bridge Decks written by Robert J. Carroll and published by . This book was released on 1975 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterproofing Membranes for Concrete Bridge Decks written by H. G. Russell and published by Transportation Research Board. This book was released on 2012 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 425: Waterproofing Membranes for Concrete Bridge Decks documents information on materials, specification requirements, design details, application methods, system performance, and costs of waterproofing membranes used on new and existing bridge decks since 1995.
Download or read book Continuing Field Evaluation of Membrane Waterproofing for Concrete Bridge Decks written by Robert J. Carroll and published by . This book was released on 1977 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterproof Membranes for Protection of Concrete Bridge Decks written by Cecil J. Van Til and published by Transportation Research Board National Research. This book was released on 1976 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents and presents the results of a comprehensive assessment of the protective capabilities of all bridge deck waterproofing membranes known to be available when the project started (1970). An extensive program of laboratory testing supplemented by a limited program of field study led to the selection from an original group of 147 systems, five that appeared most promising for more intensive field evaluation. Materials and construction specifications were prepared for the five systems, in addition to an experimental plan for the field evaluation. The new work is being under taken as a second phase of the study.
Download or read book Field Evaluations of Waterproof Membrane Systems for Bridge Decks 1972 1974 written by Wallace T. McKeel and published by . This book was released on 1975 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterproof membrane systems are being studied by many agencies from the standpoint of their effectiveness in protecting the reinforcing steel in concrete bridge decks against corrosion. Trial applications and evaluations of six such systems, including both preformed sheet and liquid membranes, were made in Virginia during the period from 1972 through 1974. These field evaluations included observations of the installation procedures and assessments of the subsequent waterproofing effectiveness of the systems through electrical resistivity measurements. While none of the systems could be considered an unqualified success, four of the systems showed promise, with modification of the application techniques used in the study, of providing the desired degree of long-term protection. Specific details of the application techniques and performances of each of the membrane systems are presented as is an evaluation of the effectiveness of earlier epoxy resin sealcoats.
Download or read book Evaluation of Bridge Deck Waterproofing Membrane Systems on a Concrete Bridge at Facility for Accelerated Service Testing written by William Larson (Transportation engineer) and published by . This book was released on 2011 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Survey of Waterproofing Membrane Systems for Bridge Decks written by Wallace T. McKeel and published by . This book was released on 1972 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This survey was concerned with only a few of the many waterproof systems available for sealing concrete bridge decks, and made use of personal contacts with engineers of other highway agencies. The information gathered indicated that there were several systems that warranted testing in Virginia. Evaluations of the effectiveness of the membrane systems in use were recommended.
Download or read book Evaluation of Different Types of Waterproofing Membranes asphaltic and Non asphaltic as Cost Effective Bridge Deck Barriers in Reducing Corrosive Chloride Effects written by Yunping Xi and published by . This book was released on 2018 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past several decades, reinforced concrete structures have deteriorated similarly by chemical attack, especially chloride attack. For highway bridges, this phenomenon becomes more severe since bridges are exposed to extreme environmental conditions, such as snow and ice. In an effort to better protect the bridge decks and reduce maintenance costs. The use of WPMs was investigated by the Colorado Department of Transportation (CDOT) to analyze the performance of four products as an effective protection system.
Download or read book Evaluation of Two Bridge Deck Membrane Waterproofing Systems Heavy Duty Bituthene and Protecto Wrap M 400 written by William Mitchell and published by . This book was released on 1978 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the performance of waterproofing membranes on concrete bridge decks written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Condition Assessment of Decommissioned Bridge Decks Treated with Waterproofing Membranes and Asphalt Overlays written by Eric S. Sumsion and published by . This book was released on 2013 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to assess the condition of four decommissioned bridge decks treated with waterproofing membranes and asphalt overlays following the completion of their service lives. Large samples were cut from each of the bridge decks immediately prior to demolition and taken to the Brigham Young University Highway Materials Laboratory, where extensive sampling and testing was performed. Methods used to evaluate the condition of the bridge deck samples included visual inspection, hammer sounding, Schmidt rebound hammer testing, resistivity testing, half-cell potential testing, linear polarization testing, cover depth measurement, and chloride concentration measurement. The samples were removed from four concrete bridge decks along the Interstate 15 corridor in Provo, Utah. One bridge deck was constructed in 1937, two were constructed in 1964, and one was constructed in 1984. Each of the bridge decks was constructed using conventional cast-in-place methods. With the exception of the 1984 bridge deck, which had epoxy-coated rebar, all of the bridge decks were reinforced with black bar. A waterproofing membrane was installed on each of the bridge decks in 1984, meaning each waterproofing membrane had been in service for 26 or 27 years at the time of sampling. With the exception of one of the bridges, which was in good condition after 26 years of service, each of the bridge decks sampled had successfully served for at least 46 years. Aside from asphalt maintenance, no rehabilitation was needed on any of the bridge decks following installation of the waterproofing membranes. Without the application of the waterproofing membranes, the chloride concentrations in the bridge decks likely would have been much higher. Additional exposure to chloride ions from deicing salts would have quickly increased the chloride concentration in the concrete above critical levels, which would have led to significant corrosion and bridge deck deterioration, prematurely. While the application of membranes as a bridge deck maintenance procedure has mostly been replaced by the use of epoxy-based polymer overlays, many bridge decks protected with membrane systems are still in service today. The research findings suggest that application of waterproofing membranes and asphalt overlays in a timely manner, before the accumulation of excessive amounts of chlorides within a deck, can be an effective approach for concrete bridge deck preservation.
Download or read book Bridge Deck Waterproofing Membrane Evaluation written by Eric G. Johnson and published by . This book was released on 1996 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Two Bridge Deck Waterproofing Membranes written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
