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Author : T. S. Rutkowski
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (89 download)
Download or read book Evaluation of Asphaltic Concrete Crack Sealing written by T. S. Rutkowski and published by . This book was released on 1998 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David R. Ward
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of Crack Sealant Performance on Indiana's Asphalt Concrete Surfaced Pavements written by David R. Ward and published by . This book was released on 1993 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anthony P. Mullin
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (965 download)
Download or read book Evaluation of Crack Sealing Techniques in Alaska’s Asphalt Concrete Pavements written by Anthony P. Mullin and published by . This book was released on 2016 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal cracking is one of the most prevalent asphalt concrete (AC) pavement distresses in northern states and countries. Every year in Alaska, a substantial amount of funding is spent on sealing cracks according to the practices of the Alaska Department of Transportation and Public Facilities (ADOT&PF) Maintenance and Operations (M&O) division. However, to date there are no specific guidelines available that clearly outline the best timing for crack sealing or even what conditions necessitate crack sealing in a consistent manner. There is a need to evaluate the effectiveness and best practices for using the crack sealing techniques on AC pavements in Alaska. In response to this research need, a pavement preservation project was conducted and found that although crack sealing is a very common practice in Alaska, it is unclear how and why M&O decides to seal cracks since some are sealed and some are not. This motivated further evaluation of 91 field sections that represent the various climate regions of Alaska. A new survey method, “special thermal crack evaluation (STCE) ”, was developed to answer critical questions related to road thermal cracks and to provide guidance for crack sealing practices. The new STCE method was conducted along with two other field survey methods, the Long Term Pavement Performance (LTPP) program and the Pavement Surface and Evaluation Rating (PASER). Results between methods were then correlated. Finally, regression analyses were conducted to determine factors that significantly influence crack development and crack sealing practices in Alaska. Significant influencing factors on crack development include pavement temperature, freezing index, and rut depth. Crack frequency, freezing index, pavement age, PASER rating, PASER transverse crack severity level, and certain STCE questions can significantly contribute to the decision making for current sealing practices. It was found that the STCE method could generate direct recommendations on crack sealing practices. STCE, in combination with the LTPP and PASER methods, provides specific analysis about asphalt thermal cracking and sealing of these cracks so that informed decisions can be made for a positive impact on ADOT&PF’s maintenance budget. It is recommended to use STCE along with the LTPP and PASER methods and to use the findings of influencing factors of this study to develop more specific plans for future crack sealing practices.
Author : John Philip Cook
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (1 download)
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:
Author : Eli Cuelho
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.:/5 (1 download)
Download or read book Cost-effectiveness of Crack Sealing Materials and Techniques for Asphalt Pavements written by Eli Cuelho and published by . This book was released on 2004 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sealing or filling cracked asphalt pavements to prevent the intrusion of water into the pavement structure has long been an accepted practice of the Montana Department of Transportation. The goals of this research are to establish the most economical and effective method of sealing pavement cracks for Montana; and to better determine the role of crack sealing within Montana pavement management system (PMS). This study has involved the construction of 4 experimental test sites within larger crack sealing projects. These test sites have included combinations of 11 sealant materials and 6 sealing techniques. Monitoring of the test sites includes visual inspections (for all of the sites) and nondestructive structural readings and surface distress identification under Montana PMS (for one test location). An estimate of the useful life of each crack sealing method has been determined from these investigations. This report presents information on project history, the project methodology used for evaluating and analyzing the performance of sealed cracks, and the results of the cost effectiveness analysis. Final results are presented for the 4 test sites: Conrad, Dutton, Tarkio, and Helena (Seiben). Results show that similar performance has been observed for all materials with ASTM D 5329 cone penetrations in excess of 90. In general, routing of transverse cracks improved the performance of the sealants. Routing does not appear necessary for centerline longitudinal cracks. Notably, router operators seem to prefer the shallow reservoir configuration as compared to square reservoirs. The test site established near Helena provided the most reliable and useful data. As such, a detailed review of the final performance from 4 1/2 years of service is summarized. In general, the highest failure rates occur during the coldest period of the year, and much of this distress exhibits a tendency to heal after exposure to the summer heat and traffic. An eclectic forecasting model has proven useful in predicting the life of crack sealing operations for those methods that did not show complete failure during the evaluation period. Structural evaluations using a Falling Weight Deflectometer did not prove an advantage for any particular sealing technique or sealing material nor did they prove the benefit of sealing cracks in asphalt pavements. Therefore, conducting a life cycle cost analysis was impractical because no structural or ride benefit was proven at this site. However, a cost effectiveness analysis was performed and the averaged results showed that, overall, Crafco 522 was the most cost effective material and the Shallow and Flush was the most cost effective fill technique. However, the crack sealing approach that has the highest cost effectiveness as calculated herein (defined as the ratio of effectiveness to cost) may not offer the best value, if this effectiveness is in excess of that required to protect the pavement from premature damage. More research is necessary to substantiate the need for higher performance materials and techniques.
Author : T. S. Rutkowski
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (89 download)
Download or read book Evaluation of Seal Coats as a Preventive Maintenance Tactic for Premature Distress in Asphaltic Pavements written by T. S. Rutkowski and published by . This book was released on 1995 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mike Marquart
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of CRAFCO Crack Sealant on Asphalt Pavements written by Mike Marquart and published by . This book was released on 2001 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. C. Evers
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of Crack Sealing Compounds for Asphaltic Pavements written by R. C. Evers and published by . This book was released on 1983 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael C. Belangie
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.3/5 (555 download)
Download or read book Evaluation of Flexible Pavement Crack Sealing Methods Used in Utah written by Michael C. Belangie and published by . This book was released on 1981 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this study was to develop criteria to improve the effectiveness of Utah's flexible pavement crack sealing practice. The methodology involved field measurements of seasonal variation in crack width and in-depth interviews of Department members at various levels of management in maintenance, materials, construction, and research. Other states were queried by questionnaire in order to obtain a comparative base on with to evaluate Utah's practice. Findings indicate that flexible pavement cracking is a significant problem in the Far West, Rocky Mountains, Great Lakes, and New England. Criteria to determine when to seal (fill) cracks, and materials or techniques to be used vary widely. Choice of materials if affected by storage requirements and equipment available. Prepackaging of materials especially designed for crack sealing has resulted in improvements in control of mix and material properties; further gains can be anticipated as mix design improves and material specifications become more exact.. Low temperature and freeze thaw cycles significantly affect the amount of thermal cracking and the performance of crack sealant. Poor rideability, increased pavement deterioration, obscured traffic markings, lowered skid resistance can result from inappropriate selection and installation of crack sealants. Ductile sealants such as Crumb rubber/asphalt cement mixes, in combination with routing appear to offer substantial gains in sealant life and performance. These gains are partially offset by increased installation cost and hazard to the operator. Existing data is insufficient for benefit/cost analysis.
Author : C. Petit
Publisher : RILEM Publications
ISBN 13 : 9782912143471
Total Pages : 748 pages
Book Rating : 4.1/5 (434 download)
Download or read book PRO 37: 5th International RILEM Conference on Cracking in Pavements – Mitigation, Risk Assessment and Prevention written by C. Petit and published by RILEM Publications. This book was released on 2004 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Feng Li
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (125 download)
Download or read book Field Investigation and Laboratory Evaluation of Asphalt Pavement Crack Seal Band written by Feng Li and published by . This book was released on 2014 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crack sealing and filling are two of the main traditional techniques of asphalt pavement preventive maintenance. However, these techniques have the shortcomings of low operating efficiency and poor performance such as secondary cracking and edge failure. In this paper, the investigation results of field performance of crack seal band are presented. The seal band is a promising material of crack repair because it results in fewer secondary cracks and greater operating efficiency (two to four times more efficient than crack sealing). However, the field investigation also revealed four major failure modes of seal band, namely, unevenness, cohesion failure, adhesion failure, and pullout that provide the demand to carry out laboratory studies on the properties of seal band material. The following standards are referenced in the studies: (1) standard of hot-applied sealant, (2) standard of building waterproof roll, and (3) standards of related enterprises. Six evaluating test methods are put forward based on the laboratory studies, including: thickness meterage, width meterage, cone penetration test, softening point test, pullout test, and bond test. Fifteen seal band samples are tested in a laboratory evaluation. Based on the field investigation and test results, the technical requirements of different seal bands used in different areas are proposed.
Author : Jusang Lee
Publisher :
ISBN 13 : 9781622603824
Total Pages : pages
Book Rating : 4.6/5 (38 download)
Download or read book Crack Sealing and Filling written by Jusang Lee and published by . This book was released on 2015-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigated the current state of practice for crack sealing/filling. In addition, the INDOT crack sealing/filling practice was experimentally evaluated for the effectiveness of crack sealing/filling, the effectiveness of routing, the performance of the different types of crack sealants and fillers, the validity of sealant performance grade system, and the crack sealing/filling equipment performance. The key findings from an extensive literature review and nationwide/statewide survey performed in 2012 are the following: (1) 65% of the responses indicated that the routing is required for the crack sealing/filling application; (2) ASTM D 6690 Type II was the most widely used sealant type and only Missouri and Indiana included emulsions in their specifications as crack sealing/filling materials; and (3) crack sealing/filling equipment availability and their maintenance were the biggest concerns.Based on the two-year experimental investigation, the crack sealing/filling was determined to be effective in preventing the occurrence of pavement surface crack distress. The crack sealing/filling was concluded to be effective in maintaining crack integrity and resisting sealant and filler deformations due to the seasonal crack movement. The routing was not determined to be effective in terms of the pavement performances. However, Adhesive/Cohesive/Spalling (ACS) failure results showed that the routed sections significantly outperformed the non-routed sections. In addition, the test results indicated that the ASTM 6690 Type II crack sealants performed relatively well in terms of pavement and crack performance. The correlation between the sealant performance grades and the pavement and crack performances with different types of sealants and fillers were poor and insignificant.The experimental results showed that the cracks on wet pavement treated with HAL had significantly higher bonding between the materials and asphalt pavement surface than the cracks treated with the conventional air compressor. Therefore, the incorporation of a hot air lance in the wet condition is recommended to extend the operable time and seasonal availability for crack filling and sealing construction (2070 and 2090 Activities).
Author : R. C. Evers
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (17 download)
Download or read book Evaluation of Crack Sealing Compounds for Asphaltic Pavements written by R. C. Evers and published by . This book was released on 1983 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James A. Musselman
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of Various Surface Sealing Techniques for the Preventative Maintenance of Flexible Pavements written by James A. Musselman and published by . This book was released on 1989 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. C. Evers
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluation of Asphalt Crack Sealing in Damp Conditions written by R. C. Evers and published by . This book was released on 1983 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William G. Buttlar
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (31 download)
Download or read book Evaluation of Reflective Crack Control Policy written by William G. Buttlar and published by . This book was released on 1999 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Illinois Department of Transportation (IDOT) spends two million dollars annually on reflective crack control treatments; however, their cost-effectiveness has never before been reliably determined. The study evaluated the cost-effectiveness of IDOT reflective crack control system "A", which consists of a non-woven, polypropylene paving fabric, placed either in strips longitudinally over lane-widening joints or over the entire pavement ("area" treatment). Performance of 52 projects across Illinois was assessed through crack mapping and from distress and serviceability data in IDOT's Condition Rating Survey (CRS) database. Comparisons of measured reflective cracking in treated and control sections revealed that system "A" retards longitudinal reflective widening crack development, but does not significantly retard transverse reflective cracking. However, both strip and area applications of these fabric treatments appeared to improve overall pavement serviceability, and were estimated to increase rehabilitation life spans by 1.1 and 3.6 years, respectively. Life-cycle cost analyses (LCCA) found strip and area reflective crack control treatments to be marginally cost effective, where a 4.5% reduction in life-cycle costs was estimated, for medium-sized projects [between 1 and 6 mi (1.6 and 9.7 km) of two-lane road]. Small projects [under 1 mi (1.6 km) of two-lane road] showed a breakeven level of cost-effectiveness, while large projects [over 6 mi (9.7 km) of two-lane road] showed a 6.2% savings in life-cycle costs. Permeability testing of field cores taken over transverse joints showed that waterproofing benefits can exist after reflective crack appearance, which explains why serviceability was improved with area treatment even though crack development was not retarded. Guidelines for establishing and monitoring future experimental sections were also developed.
Author : Khaled Ksaibati
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (1 download)
Download or read book Evaluating the Effectiveness of Hot-poured Crack Surfacing Material written by Khaled Ksaibati and published by . This book was released on 2006 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
