Download or read book Measurements with a New Peel Adhesion Test on Waterproof Membranes Used on Concrete Bridge Decks written by Qinghua Zhou and published by . This book was released on 2008 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interface adhesion is one of the critical performance criteria to evaluate the engineering properties of the waterproof membrane (WM) used on concrete bridge decks. The standardized methods such as the ones specified by ASTM have provided guidance to conduct interface adhesion tests. However, these methods are not specially designed for a WM used on concrete bridge decks, and ASTM D3359 is a qualitative test for evaluation of peel strength. Meanwhile, the interface adhesion is affected by a myriad of sophisticated field conditions. Accordingly, this research investigates the interface adhesion strength of the WM using a new 90° peel test. Laboratory and field tests were conducted in which the influences of peeling speed, use of subcoat, and construction temperature were taken into account. The four-point bending fatigue test on a WM was designed to account for the influences of repeated vehicle loadings on adhesion strength. Test results indicate that peel strength increases with increasing peeling speed, while it increases initially and then decreases with increasing the construction temperature of the WM and the content of subcoat. It is also found that peel strength has a linear log-log relationship with fatigue loading cycles.
Download or read book Adhesion of Bituminous Waterproofing Membranes for Bridge Applications written by K. Oba and published by . This book was released on 1998 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waterproofing systems on bridges play an important role by protecting both the concrete in a deck slab and the embedded reinforcement from corrosion. Such waterproofing systems are often made by applying bituminous waterproofing membranes on the concrete deck and beneath asphalt surfacing. The membranes need to adhere well to the concrete deck to avoid the formation of blisters and air gaps which reduce the long-term in-service performance. In this study, different parameters influencing the adhesion of the bituminous membranes to the concrete deck, such as surface roughness, water content in concrete, welding method, and primer coating, were investigated. A typical SBS-modified bituminous waterproofing membrane and a concrete base plate (B30) were chosen for the study. Test specimens were prepared and tested using different test methods. The adhesion strength of the membrane was measured using conventional test methods, i.e. pull-off test, shear test, and 90° peel test. New performance-oriented tests were also used to determine the adhesion of the membrane attached to the concrete by a pressure resistance test and by a blister growth simulation test. The availability of these performance-oriented tests was discussed. The results from the conventional tests showed some significant differences in adhesion strength between bitumen and epoxy primers.
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 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 Procedures for the Evaluation of Sheet Membrane Waterproofing written by and published by . This book was released on 1999 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sheet membrane waterproofing has been used to protect bridge decks against water and deicing salts by transportation agencies in New England for more than two decades. Though such membranes have proven useful at extending the useful life of bridge decks, there are no convenient methods to evaluate one membrane against another. This report details the genesis of blisters, a major problem for membranes, and defines test procedures to evaluate sheet membranes based on their ability to adhere to concrete, accommodate strain, resist puncturing, and pass water vapor. The results of these tests allow an engineer to compare sheet membranes based on material properties but they, alone, cannot be used to predict how well a membrane will perform in practice. Because a laboratory environment does not reflect the complex combination of forces and deterioration mechanisms a membrane is exposed to in the field, a follow-on study of the installation/design process and long-term performance of membranes in actual bridges needs to be conducted. This report provides a needed step toward the ability to predict sheet membrane service life.
Download or read book Waterproof Membranes for Protection of Concrete Bridge Decks written by Cecil J. Van Til and published by . This book was released on 1978 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterproof Membrane Systems for Use on Concrete Bridge Decks written by C. F. Derrington 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 Repairing Concrete Bridges written by and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waterproof membranes for protection of concrete bridge decks written by C. J. Van Til and published by . This book was released on 1976 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Concrete International written by and published by . This book was released on 1992 with total page 676 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 The Manual of Below Grade Waterproofing Systems written by Justin Henshell and published by John Wiley & Sons. This book was released on 2000 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the arsenal of weapons against leakage has grown, so has confusion among architects and engineers attempting to select the best below-grade waterproofing systems and materials. Manufacturers literature offers little assistance during the selection process, as well as being biased in favor of a particular product. The first guide devoted exclusively to the subject, The Manual of Below-Grade Waterproofing Systems picks up where manufacturers manuals leave off. Written by an architect with more than twenty years of experience designing habitable underground spaces, it provides frank, unbiased appraisals of various waterproofing materials and systems. This manual presents architects and engineers with expert guidance on selecting, designing with, and specifying waterproofing materials and systems. Justin Henshell walks you step by step through the entire waterproofing process from determining waterproofing needs to selecting and specifying waterproofing systems to preparing detailed drawings for construction documents. And throughout, he offers architectural details which illustrate general design principles, as well as high-quality photographs of waterproofing failures that help you to more clearly comprehend common design errors and problems associated with various waterproofing materials. The Manual of Below-Grade Waterproofing Systems is an indispensable working resource for architects, civil engineers, contractors, specifiers, materials manufacturers, landscape architects, and all other professionals involved with the design and construction of habitable underground spaces.
Download or read book Tile Your World written by John P. Bridge and published by Mistflower Press. This book was released on 2003 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Illustrated instructions enable you to 'tile with style'.
Download or read book Engineering and Design written by Us Army Corps Of Engineers and published by Military Bookshop. This book was released on 1995-06 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides guidance on evaluating the condition of the concrete in a structure, relating the condition of the concrete to the underlying cause or causes of that condition, selecting an appropriate repair material and method for any deficiency found, and using the selected materials and methods to repair or rehabilitate the structure. Guidance is also included on maintenance of concrete and on preparation of concrete investigation reports for repair and rehabilitation projects. Considerations for certain specialized types of rehabilitation projects are also given.
Download or read book Historic Lighthouse Preservation Handbook written by and published by U.S. Government Printing Office. This book was released on 1997 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twentieth Century Building Materials written by Thomas C. Jester and published by Getty Publications. This book was released on 2014-08-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the concluding decades of the twentieth century, the historic preservation community increasingly turned its attention to modern buildings, including bungalows from the 1930s, gas stations and diners from the 1940s, and office buildings and architectural homes from the 1950s. Conservation efforts, however, were often hampered by a lack of technical information about the products used in these structures, and to fill this gap Twentieth-Century Building Materials was developed by the U.S. Department of the Interior’s National Park Service and first published in 1995. Now, this invaluable guide is being reissued—with a new preface by the book’s original editor. With more than 250 illustrations, including a full-color photographic essay, the volume remains an indispensable reference on the history and conservation of modern building materials. Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques. Bibliographies and sources for further research complete the volume. The book is intended for a wide range of conservation professionals including architects, engineers, conservators, and material scientists engaged in the conservation of modern buildings, as well as scholars in related disciplines.
