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Author : Daniel W. Traub
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (1 download)
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:
Author : Randall W. Poston
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (319 download)
Download or read book Performance Criteria for Concrete Repair Materials written by Randall W. Poston and published by . This book was released on 1998 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein is part of an overall investigation to develop performance criteria for cement-based repair materials. In Phase I of the study, preliminary criteria for dimensionally compatible repair materials were developed based on a review of the literature. This review concentrated on identifying pertinent material properties, appropriate test methods, and demonstrated field performance. Laboratory and field tests to evaluate the preliminary performance criteria were conducted in Phase II of the project Twelve candidate repair materials were selected for the experimental portion of the project Bach material was subjected to a series of standard and nonstandard laboratory tests to determine properties which were perceived to be of interest in a repair context and to provide some basic information about their behavior. These tests included: (a) unrestrained and restrained drying shrinkage, (b) modulus of elasticity, (c) tensile and compressive creep, (d) coefficient of thermal expansion, and (e) flexural, compressive, and direct tensile strengths. Concurrent field tests were also conducted to evaluate material durability. Results of the laboratory investigation are described herein. Results of laboratory and field performance tests will be correlated (Phase III) to provide a basis for development of performance criteria for cement-based materials that will provide durable concrete repairs.
Author : A. Kairaitis
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (218 download)
Download or read book Laboratory and Field Evaluation of Concrete Bonding and Repair Materials written by A. Kairaitis and published by . This book was released on 1984 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tony Brooks Husbands
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)
Download or read book Laboratory and Field Evaluation of Polymeric Cavitation Erosion-resistant Materials on Concrete written by Tony Brooks Husbands and published by . This book was released on 1976 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (91 download)
Download or read book Performance Criteria for Concrete Repair Materials written by and published by . This book was released on 1999 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kevin G. Smith
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (83 download)
Download or read book Laboratory and Fields Evaluation of Rapid Setting Materials Used for Repair of Concrete Pavements written by Kevin G. Smith and published by . This book was released on 1984 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Institute of Standards and Technology (U.S.)
Publisher :
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.3/5 (243 download)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)
Download or read book Performance Criteria for Concrete Repair Materials, Phase II Summary Report written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a study to develop performance criteria for cement-based repair materials are summarized herein. Results of laboratory tests and field performance studies were correlated and guidance for selection of repair materials that would reduce the risk of premature failures was developed. This guidance includes a standard protocol for repair material data sheets and proposed performance criteria. Results of this study illustrate the significant effect of drying shrinkage on the performance of restrained repair materials. While there was a general correlation between the results of laboratory tests on unrestrained shrinkage specimens and field performance, there is a need for restrained shrinkage tests to evaluate the cracking resistance of repair materials. Although there was a general lack of significant correlation between individual material properties and field performance, results of this study indicate that it is possible to predict the field performance of repair materials based on a combination of material properties determined in laboratory tests. Results of this study emphasize the need for a comprehensive analytical model to predict the cracking resistance of repair materials that considers the interrelationship of pertinent material properties, the relative importance of individual properties, and the effect of environmental conditions on time-dependent material properties.
Author :
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.F/5 ( download)
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert F. Kemphues
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (31 download)
Download or read book Materials and Procedures for the Repair of Spalls in Concrete written by Robert F. Kemphues and published by . This book was released on 1973 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Prashant Ram
Publisher :
ISBN 13 : 9781622604395
Total Pages : pages
Book Rating : 4.6/5 (43 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (227 download)
Download or read book Results of Laboratory Tests on Materials for Thin Repair of Concrete Surfaces written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein was Phase I of a cooperative investigation between the U.S. Army Engineer Waterways Experiment Station (WES) and the U.S. Bureau of Reclamation (USBR). The overall objective of the investigation was to identify materials appropriate for thin repair of concrete surfaces, conduct laboratory tests to determine pertinent material properties, and evaluate the Performance of selected materials in field applications. Eleven candidate repair materials were selected based on a review of test data, discussions with manufacturers and contractors, and examination of information that was already available at the laboratories. Each material was subjected to a suite of laboratory tests to determine pertinent material properties with results as described herein. Based on the results of these tests, selected materials have been installed at various exposure sites to evaluate their performance in field applications. The Phase II field tests represent a wide variety of environmental conditions including high and low temperature, high and low relative humidity, and cycles of freezing and thawing. Material performance will be monitored for an extended period of time.
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 788 pages
Book Rating : 4.3/5 (91 download)
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1978 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christer Sjostrom
Publisher : Routledge
ISBN 13 : 1135818738
Total Pages : 690 pages
Book Rating : 4.1/5 (358 download)
Download or read book Durability of Building Materials and Components 7 written by Christer Sjostrom and published by Routledge. This book was released on 2004-01-14 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: These books contain articles on R&D into the major aspects of durability and service life prediction of building materials and components, as well as theoretical aspects of methods and modelling of prediction, description of degradation environment by use GIS, as practical implementation of knowledge on durability in maintenance procedures and in standardisation and regulations.
Author : Christer Sjostrom
Publisher : Routledge
ISBN 13 : 1136746331
Total Pages : 685 pages
Book Rating : 4.1/5 (367 download)
Download or read book Durability of Building Materials & Components 7 vol.2 written by Christer Sjostrom and published by Routledge. This book was released on 2014-02-24 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 2004. In the process of harmonising the wide-ranging interests in this field, the series of international conferences Durability of Building Materials and Components, of which this is the seventh, has played a decisive role by bridging between different material and product areas and by giving researchers and practitioners an opportunity to meet every third year to discuss the latest R&D achievements. This conference covers a number of themes ranging from theoretical aspects of service life prediction to the practical implementation of knowledge on durability of building products in standards. This collection is the proceedings and will serve as a valuable reference to all interested in the wide and stimulating area of durability and service life prediction in building and construction. This is Volume Two on Testing, Design and Standardisation.
Author : Michael Grantham
Publisher : CRC Press
ISBN 13 : 0415616220
Total Pages : 872 pages
Book Rating : 4.4/5 (156 download)
Download or read book Concrete Solutions 2011 written by Michael Grantham and published by CRC Press. This book was released on 2011-09-08 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concrete Solutions series of International Conferences on Concrete Repair began in 2003, with a conference held in St. Malo, France in association with INSA Rennes, followed by the second conference in 2006 ( with INSA again, at St. Malo, France), and the third conference in 2009 (in Padova and Venice, in association with the University of Padova). Now in 2011, the event is being held in Dresden in Germany and has brought together some 112 papers from 33 countries. Whereas electrochemical repair tended to dominate the papers in earlier years, new developments in structural strengthening with composites have been an increasingly important topic, with a quarter of the papers now focusing on this area. New techniques involving Near Surface Mounted (NSM) carbon fibre rods, strain hardening composites, and new techniques involving the well established carbon fibre and polyimide wrapping and strengthening systems are presented. Seventeen papers concentrate on case studies which are all-important in such conferences, to learn about what works (and what doesn’t work) on real structures. Thirteen papers are devoted to new developments in Non-Destructive Testing (NDT). Other topics include service life modelling, fire damage, surface protection methods and coatings, patch repair, general repair techniques and whole life costing. This book is essential reading for anyone engaged in the concrete repair field, from engineers, to academics and students and also to clients, who, as the end user, are ultimately responsible for funding these projects and making those difficult decisions about which system or method to use.
Author : Us Army Corps Of Engineers
Publisher : Military Bookshop
ISBN 13 : 9781780397603
Total Pages : 192 pages
Book Rating : 4.3/5 (976 download)
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.
