Download or read book Tensile Bond Strength of Latex modified Bonded Concrete Overlays written by Cameron DuBois and published by . This book was released on 2011 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bond and Durability of Concrete and Resinous Overlays written by Howard L. Furr and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Latex modified Concretes and Mortars written by V. Ramakrishnan and published by Transportation Research Board. This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis wil be of interest to materials engineers, construction engineers, maintenance engineers, pavement contractors and others interested in the use of latex-modified mortars (LMM) and concretes ( LMC). Information is provided on material properties of various LMM and LMC, as well as current construction practices used for LMM and LMC. Potential applications for LMM and LMC are also included. The use of innovative modified portland cement mortars and concretes for construction and maintenance applications is growing. This report of the Transportation Research Board describes the current state of the practice with respect to the use of latex-modified portland cement concretes and mortars. The extent of use of each material (including case histories), based on results of surveys of state highway agencies and a review of the literature, is summarized.

Download or read book Preliminary Performance Criteria for the Bond of Portland cement and Latex modified Concrete Overlays written by and published by . This book was released on 1989 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bond Fatigue Behavior of Bonded Concrete Overlay written by Young Kyu Kim and published by . This book was released on 2015 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bonded concrete overlays have a structural advantage over unbonded concrete overlays when the overlay and the existing pavement layer behave as a monolithic layer. Therefore, it is important to ensure suitable bond strength between the two layers. Many studies have specified the bond-strength criteria for the construction of bonded concrete overlays based on a monotonic load as pull off test. However, cyclic stress at the interface of bonded concrete overlay layer occurs by the repetition of traffic loading and environmental loading caused by daily temperature changes. In this study, a strategic test procedure is developed to investigate potential bond failures caused by cyclic loading, and a bond-fatigue equation for a bonded concrete overlay was suggested. The test results indicate that early distress in bonded concrete overlay may arise because of a bond failure if the bond stress at the interface exceeds 90 % of the bond strength.

Download or read book Significance of Tests and Properties of Concrete and Concrete making Materials written by Joseph F. Lamond and published by ASTM International. This book was released on 2006 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Overview of Latex Modified Concrete Overlays written by Michael M. Sprinkel and published by . This book was released on 1984 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twelve bridges with latex modified concrete (LMC) overlays ranging in age from new to 13 years were studied and their general condition found to be good. The half-cell and chloride data were inconclusive because background data were not available for the older overlays, but the data should be useful some 5 to i0 years from now if similar data are collected at that time for comparison. The shear strength of the bond between the LMC overlays and the base concretes was about the same or greater than that of the base concrete, which indicates that good bonds were achieved and have been maintained. The permeability to chloride ions based on the rapid permeability test was an average of 773 coulombs (very low) for a 1.25 in. thick LMC overlay and 4,590 coulombs (high) for the base concretes. The inverse of the ratio of the logarithm of the permeability of the LMC overlay to that of the base concrete was 1.27, which provides a very conservative indication of the relative benefits to be obtained from the LMC overlay as compared to an A4 concrete overlay. The three sets of cost assumptions developed indicate that an LMC overlay costs 6% to 31% more than an A4 concrete overlay. Considering that the benefit-to-cost ratio ranged from 0.97 to 1.20, it was concluded that for bridges in which the low permeability provided by the LMC overlay is needed, the benefits usually obtained are worth the extra cost when compared to that of an A4 concrete overlay.

Download or read book Design and Construction of Bonded Concrete Overlays written by and published by . This book was released on 1991 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Report SL written by Waterways Experiment Station (U.S.) Structures Laboratory and published by . This book was released on 19?? with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bonded Cement Based Material Overlays for the Repair the Lining or the Strengthening of Slabs or Pavements written by Benoît Bissonnette and published by Springer Science & Business Media. This book was released on 2011-03-16 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among different approaches that can be considered for concrete rehabilitation, bonded overlays are often the most economical alternative. The primary purpose of overlays is to extend the life of the candidate structures, either by restoring the quality and integrity of the surface and/or the re-establishing or improving the load-carrying capacity. Nevertheless, the durability of bonded overlay systems still draws concerns in the technical community because of bond sustainability problems encountered in a number of cases. At this time, there is still no accepted design approach or methodology that can warrant the practitioner a successful outcome of the repair. This State-of-Art report summarizes the findings with respect to all aspects involved in the overlaying process.

Download or read book Bond Strength of Concrete Overlays written by Robert D. Stark (University of Manitoba student) and published by . This book was released on 1996 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bond Strength Comparisons of Different Substrate Preparations and Various Bonding Agents Used in Concrete Overlays and Enlargements written by Keith Eberhardt and published by . This book was released on 2017 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Concrete written by D. Gerry Walters and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tensile Relaxation of Bonded Concrete Overlays written by Crispen Masuku and published by . This book was released on 2009 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book In place Performance of Polymer Concrete Overlays written by Stella Marusin and published by . This book was released on 1997 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bond Development in Concrete Overlays written by James Karl Cable and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data collection to determine the rate of bond strength development between concrete overlays and existing pavements and the evaluation of nondestructive testing methods for determining concrete strength were the objectives of this study. Maturity meters and pulse velocity meters were employed to determine the rate of flexural strength gain and determine the time for opening of newly constructed pavements to traffic. Maturity measurements appear to provide a less destructive method of testing. Pulse velocity measurements do require care in the preparation of the test wells and operator care in testing. Both devices functioned well under adverse weather and construction conditions and can reduce construction traffic delay decisions. Deflection testing and strain gaging indicate differences in the reaction of the overlay and existing pavement under grouting versus nongrouted sections. Grouting did enhance the rate of bond development with Type I11 cement out performing the Type I1 grout section. Type I11 and Type I1 cement grouts enhanced resistance to cracking in uniformly supported pavements where joints are prepared prior to overlays achieving target flexural strengths. Torsional and direct shear testing provide additional ways of measuring bond development at different cure times. Detailed data analysis will be utilized by TRANSTEC, Inc. to develop a bonded overlay construction guidelines report.

Download or read book Adhesion between polymers and concrete Adh sion entre polym res et b ton written by H. R. Sasse and published by Springer. This book was released on 2013-11-27 with total page 761 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preface Adhesion is a phenomenon architects and civil engineers are not very familiar with. In other disciplines knowledge about surface properties and the background of bonding energies is also far from satisfactory; nevertheless there are many important· applications in concrete engineering, where adhesion is necessary for success and durability. These include: - coating and painting - repair of concrete surfaces - bonding of fresh to old concrete - crack injection - glueing of precast elements - glueing of steel to concrete, etc. In 1981 RILEM established the technical committee 52-RAC 'Resin Adherence to Concrete'. The main aims of the committee's work were - to collect research results and practical experiences - to initiate and coordinate research programs - to develop, on a scientific base, test methods for field and for laboratory purposes. One of the results of the committee's work is a state-of-the-art report, which will be presented orally as a General Report at the International Symposium ISAP '86, and will be printed either in the RILEM journal Materials and Structures or separately. Several test recommendations have been elaborated and will be prepared as drafts for the participants ofISAP '86. These are: - direct tensile test - pull-off test - direct shear test - slant shear test - four-point bending test - dynamic loading test - thermal compatibility test (two versions) - injectibility test.