Download or read book Evaluation of Joint Sealants of Concrete Pavements written by Ashok H. Gurjar and published by . This book was released on 1997 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project 0-187 task 15 continued investigative efforts of project 1371. The project completed laboratory tests including relaxation tests, bond-strength tests, and fatigue tests for various sealant materials, and also established a field test site of a variety of joint sealants to monitor performance. The researchers constructed a material behavior model based on finite-deformation viscoelasticity as a function of temperature, deformation, and age effects. They studied the correlation between natural and artificial weathering and proposed a sealant performance model. Based on this model, this report provides a procedure for estimation of the service life of a sealant in concrete pavement joints. This report also proposes a specification and a test protocol for joint sealant materials, which incorporate performance prediction procedure.
Download or read book Evaluation of Joint Sealants of Concrete Pavements written by and published by . This book was released on 1997 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Evaluation of Portland Cement Concrete Pavement Joint Sealants written by Sylvester A. Kalevela and published by . This book was released on 1994 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: In July 1986, the Arizona Transportation Research Center (ATRC) coordinated the installation of a joint sealant test site near Flagstaff, between mile posts 331.5 and 332.2, on the southbound lanes of Interstate 17. The original project was constructed in 1974, with 8 in. (20 cm) of portland cement concrete pavement (PCCP) over 6 in. (15 cm) of cement treated base (CTB). The test site consisted of 200 transverse joints sawed 2 in. (5 cm) deep, skewed 1:6, and spaced at a repeating sequence of 17, 15, 13, and 15 ft (5.2, 4.6, 4.0, and 4.6 m). The objective of the project was to evaluate the performance of five joint sealants: Dow Corning 888, Superseal 888, Allied Koch 9005, Crafco Roadsaver 231, and W.R. Meadows Sof-Seal. The highway sections abutting this test site were also rehabilitated and their pavement joints were sealed with Superseal 444 which, at that time, was a specified sealant in the Arizona Department of Transportation (ADOT) standards. Field evaluations of the joint sealants were performed at nine months, one year, 1.5 years, 3 years, and 8 years after construction. The evaluations were based on: (i) sealant flexibility, (ii) length of joint with missing sealant, (iii) adhesive and cohesive failure of sealant, (iv) joint width and sealant depth, (v) joint spalling, (vi) sealant recess, (vii) Falling Weight Deflectometer testing, and (viii) slab faulting. Generally, it appeared that after about eight years of service all five sealants had exhibited comparable performance level. Clearly, all test sealants performed better than Superseal 444 which was an ADOT specified joint sealant when the test site was installed in 1986.
Download or read book Evaluation of Joint Sealant Materials written by and published by . This book was released on 1977 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Materials and Processes for Sealing and Resealing Joints in Portland Cement Concrete Pavements written by Larry N. Lynch and published by . This book was released on 1993 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Various Concrete Pavement Joint Sealants written by Michael J. Eacker and published by . This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Field Moulded Joint Sealants for Concrete Pavements and Structures written by B. Chojnacki and published by Department of Highways. This book was released on 1966 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Joint Sealant Materials US 36 Doniphan County Kansas written by Rodney A. Montney and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Kansas Department of Transportation began using silicone joint sealant on Portland Cement Concrete Pavement (PCCP) almost exclusively in 1983. During the next 6 years there was widespread failure of these products. A project was constructed in 1990 to evaluate several different types of joint sealants available. While most of the silicone products in this study appeared to outperform the other types, KDOT could not ignore the failure rate of the previously installed silicone sealants. During the course of this investigation, KDOT issued a policy on sealing new PCCP joints. The policy requires preformed neoprene seals in all transverse joints, and allows longitudinal joints to be filled full depth with either hot or cold pour sealants.
Download or read book Design Construction and Maintenance of PCC Pavement Joints written by Kenneth H. McGhee and published by Transportation Research Board. This book was released on 1995 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis report will be of special interest to pavement engineers and pavement construction and maintenance personnel responsible for portland cement concrete (PCC) pavement joints. Still pertinent information from NCHRP Synthesis 19 (1973), as well as new or updated information in the areas of joint design, construction, and maintenance are included. This report of the Transportation Research Board records the state of the practice with respect to the design, construction, and maintenance of PCC pavement joints. In addition, information on joint materials and sealing, the control of water on and in pavements, and the evaluation of pavement joint performance is provided.
Download or read book PCC AC Shoulder Joint Seal Evaluation written by Anselem H. Rumpca and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Portland Cement Concrete Pavement Joint Sealant Practices and Performance written by Junho Kim (Expert on pavements) and published by . This book was released on 2021 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portland cement concrete (PCC) pavement joint sealing material technology has evolved in recent decades, and the effect of current joint sealant practice has not been well documented. Therefore, it is necessary to establish a standardized approach to joint sealant evaluation as well as to investigate the practice of joint sealant in PCC pavement design. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 568: Portland Cement Concrete Pavement Joint Sealant Practices and Performance compiles and documents information regarding the current state of practice of joint sealing PCC by state departments of transportation.
Download or read book Evaluation of Joint and Crack Sealants written by John Philip Cook and published by . This book was released on 1991 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical empirical Performance of U S 50 Joint SealanttTest Pavement written by Jason Andrew Sander and published by . This book was released on 2007 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: Previous studies have suggested that joint sealing practices may significantly enhance concrete pavement ride quality and structural performance. Presented herein is a performance report for the U.S. 50 Ohio High Performance Concrete Pavement (HPCP) Joint Sealant Experiment near Athens, Ohio. The experimental concept and data analysis for this project conforms to guidelines established in the on-going Strategic Highway Research Program (SHRP) sealing effectiveness initiative. The development of a performance inspection plan for consistent collection of data related to the effectiveness of various joint sealants installed at the test site is described. Evaluation activities performed between the Fall of 1999 and the Spring of 2000 are detailed. The performance of the concrete pavement system is also documented by tracking development of structural distresses, ride quality consistency and through mechanistic evaluation of several features affecting concrete pavement performance. Several recommendations for future investigations are formulated based on the evaluation and mechanistic results.
Download or read book Evaluation of Sealers and Waterproofers for Extending the Life Cycle of Concrete written by Andrew Wiese and published by . This book was released on 2015-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete pavements represent a large portion of the transportation infrastructure. While the vast majority of concrete pavements provide excellent long-term performance, a portion of these pavements have recently shown premature joint deterioration. Substantial interest has developed in understanding why premature joint deterioration is being observed in jointed portland cement concrete pavements (PCCP). While some have attributed this damage to insufficient air void systems, poor mixture design, or chemical reaction between the salt and the paste, it is the hypothesis of this work that a component of this damage can be attributed to fluid absorption at the joints and chemical reactions between the salt and chemistry of the matrix. This paper discusses the role of soy methyl ester - polystyrene blends (SME-PS) as a potential method to extend the service life of concrete pavements by limiting the ingress of salt solutions. The report discusses field application of the SME-PS blends for field investigation in Lafayette and Fishers. Low temperature-differential scanning calorimetry (LT-DSC) techniques identified noticeable differences between plain mortar samples and mortar treated with SME-PS. The report also discusses the development of a test to assess chloride solution ingress during temperature cycling. The aim of this work is to provide background on some aspects that can lead to joint deterioration and provide early documentation showing that sealers may help to reduce the impact of deicers on joint damage, thereby extending the life of the concrete pavement. It should be noted that these sites as well as others are still ongoing and should be monitored for long term performance. Application procedure for SME-PS should follow manufacturer's recommendation.
Download or read book The Great Unsealing written by Stephen Shober and published by . This book was released on 1997 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ohio Route 50 Joint Sealant Experiment written by and published by . This book was released on 2002 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third and Final Report for a research project that entailed the construction and evaluation to date of a stretch of a four-lane highway near Athens, Ohio. The main purpose of this project has been to evaluate concrete pavement performance in connection with various sealant types and joint configurations in the Wet-Freeze climatic zone. A detailed description of previous work conducted from Fall 1996 to March 2000 can be found in Hawkins (1999) and in Sander (2002).
Download or read book Evaluation of Six cell Delastic Sealant written by Jeff M. Richter and published by . This book was released on 2007 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
