Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Use Of Hydrated Lime As An Antistripping Additive
Download Use Of Hydrated Lime As An Antistripping Additive full books in PDF, epub, and Kindle. Read online Use Of Hydrated Lime As An Antistripping Additive ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis The Use of Hydrated Lime as an Antistripping Additive by : G. W. Maupin
Download or read book The Use of Hydrated Lime as an Antistripping Additive written by G. W. Maupin and published by . This book was released on 1987 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation was to evaluate the performance of six test sections of asphalt concrete that contained no additive, hydrated lime, and a chemical additive. Tests were also conducted on pavement samples taken periodically to determine whether hydrated lime slows the hardening rate of asphalt cement as has been reported by others. Visual examination of pavement samples generally revealed less stripping in pavements containing hydrated lime than in pavements with no additive or with the chemical additives that are routinely used. The tensile strength ratio correlated reasonably well with the amount of stripping observed; but there were some exceptions that were possibly caused by differences in the permeabilities of the pavements. The stripping has not caused any significant pavement distress. The correlation between the hardening of the asphalt cement and age of the pavements was poor for five of the projects. The only project which produced acceptable correlations showed no significant difference in the hardening rates of the various mixes.
Book Synopsis Use of Hydrated Lime as an Antistripping Additive by : G. W. Maupin
Download or read book Use of Hydrated Lime as an Antistripping Additive written by G. W. Maupin and published by . This book was released on 1983 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this investigation is to evaluate the effectiveness of hydrated lime as an antistripping additive in several test sections. The two sections installed in 1982 contain S-5 surface mixes with (1) hydrated lime, (2) a chemical additive, and (3) no additive. Stripping tests on the mixes have predicted that those containing hydrated lime are less susceptible to stripping than the identical mixes with conventional chemical additives. The construction of at least two additional test sections is planned for 1983.
Book Synopsis The use of hydrated lime as an antistripping additive by :
Download or read book The use of hydrated lime as an antistripping additive written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject report describes a follow-up evaluation of test sections that were installed in 1982 and 1983 and reported on in 1987. Each test section contained three asphalt concretes: (1) with no additive, (2) with hydrated lime, and (3) with one or more chemical additives. The hydrated lime continues to deter stripping as well or better than the chemical additives that were being used when the sections were installed.
Book Synopsis Laboratory investigation of hydrated lime as an antistripping additive by :
Download or read book Laboratory investigation of hydrated lime as an antistripping additive written by and published by . This book was released on 1983 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this laboratory study was to determine the effectiveness of hydrated lime as an antistripping additive when used in bituminous mixes incorporating aggregates frequently used in such mixes in Virginia. The application of 1% hydrated lime to dry aggregate deterred stripping in 60% of the mixes tested. Applied at the same rate to wet aggregate, the hydrated lime decreased the stripping susceptibility to or very near an acceptable level for all but one mix. An aggregate dust coating reduced the effectiveness of the lime in one mix. It has been recommended that the use of hydrated lime as an antistripping additive be allowed.
Book Synopsis Use of Antistripping Additives in Asphaltic Concrete Mixtures by : David G. Tunnicliff
Download or read book Use of Antistripping Additives in Asphaltic Concrete Mixtures written by David G. Tunnicliff and published by Transportation Research Board. This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of Hydrated Lime as an Anti-stripping Agent in Hot Bituminous Mixes by : Robert Victor Wood
Download or read book The Use of Hydrated Lime as an Anti-stripping Agent in Hot Bituminous Mixes written by Robert Victor Wood and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Saskatchewan. Department of Highways and Transportation. Technical Standards and Policies Branch. Materials Section Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (74 download)
Book Synopsis The Use of Hydrated Lime as an Anti-stripping Agent by : Saskatchewan. Department of Highways and Transportation. Technical Standards and Policies Branch. Materials Section
Download or read book The Use of Hydrated Lime as an Anti-stripping Agent written by Saskatchewan. Department of Highways and Transportation. Technical Standards and Policies Branch. Materials Section and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effectiveness of Antistripping Additives in the Field by : G. W. Maupin
Download or read book Effectiveness of Antistripping Additives in the Field written by G. W. Maupin and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stripping has long been recognized as a cause of asphalt pavement damage. Water may get between the asphalt film and the aggregate surface, causing an adhesive failure, or water may combine with the asphalt to affect the cohesive strength of the material. Various types of antistripping additives have been used in the attempt to alleviate or eliminate stripping. The Virginia Department of Transportation has used antistripping additives in some of its asphalt mixes since the 1960's. In the 1980's hydrated lime was found to outperform several al chemical additives. VDOT began to require asphalt contractors to use chemical additives that produced test results equal or superior to hydrated lime. Presumably, chemical additives were then improved to compete with hydrated lime. This study was undertaken to find if the new generation of additives prevented stripping in Virginia's hot mix asphalt. Twelve test sections were established, 9 using chemical additives and 3 containing hydrated lime. After 3 to 4 years, eight of the sections containing chemical additive demonstrated considerable visual stripping in cores. The sections containing hydrated lime showed much less stripping. The TSR test used on mix sampled during construction did not accurately predict the stripping that occurred. A follow-up survey of existing pavements should be conducted to verify the possible inadequacy of some chemical additives. Also, the TSR test should be examined and possibly modified to more closely duplicate Virginia's environmental conditions.
Book Synopsis Use of Lime as Anti-Strip Additive for Mitigating Moisture Susceptibility of Asphalt Mixes Containing Baghouse Fines by :
Download or read book Use of Lime as Anti-Strip Additive for Mitigating Moisture Susceptibility of Asphalt Mixes Containing Baghouse Fines written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent NCDOT research suggests that baghouse fines with gradation similar to the natural and manufactured fines passing #200 sieve seems to have beneficial effect on stiffness and rutting characteristics of the asphalt mix. However, these studies conclude that mixes containing baghouse fines were highly moisture susceptible, and recommended that baghouse fines be metered into the mix to create a uniform percentage throughout the mix. This study assesses the effectiveness of hydrated lime as an anti-strip additive in mixes containing excess baghouse fines. Comparison of test results of the mixes containing hydrated lime versus the mixes containing organic anti-stripping additive (LOF 6500) was also done. Two different types of baghouse fines, one from Boone, NC and one from Enka, NC, were used in HMA mixtures in the amounts of 1.5, 5.5 and 6.5-percent. Modifications were made to the available JMF and specimens were prepared in the laboratory and several different tests were performed. Wet sieve analysis was first done to check the gradation of materials. Using this gradation and the available JMF, aggregate proportioning was done to satisfy NCDOT mix design criteria. Moisture susceptibility of mixes was determined by performing TSR tests on mixes with different proportions of BHF, and with or without lime. TSR testing showed that moisture susceptibility was dependant on both the concentration of baghouse fines and anti-strip additive. Presence of hydrated lime in mixes increased the resistance to moisture damage. Specimens were also tested using the SST machine. Samples were compacted and sawed and one half of the specimens were moisture conditioned. The FSCH and RSCH tests were then performed on the samples to determine the material properties as well as the rutting resistance and fatigue life. In general, the test results indicate that addition of lime enhances the mix performance - |G*| values are higher, rut depths are lower, and fatigue resistance is higher. Bas.
Author :Evers, R. C Publisher :[Downsview, Ont.] : Engineering Materials Office ISBN 13 :9780772968081 Total Pages :22 pages Book Rating :4.9/5 (68 download)
Book Synopsis Evaluation of Hydrated Lime as an Anti-stripping Agent in the Hot-mix Recycling of a Badly Stripped Pavement by : Evers, R. C
Download or read book Evaluation of Hydrated Lime as an Anti-stripping Agent in the Hot-mix Recycling of a Badly Stripped Pavement written by Evers, R. C and published by [Downsview, Ont.] : Engineering Materials Office. This book was released on 1989 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Maximizing the Beneficial Effects of Lime in Asphalt Paving Mixtures by : JW. Button
Download or read book Maximizing the Beneficial Effects of Lime in Asphalt Paving Mixtures written by JW. Button and published by . This book was released on 1985 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory and field tests were conducted to evaluate the use of hydrated lime as an antistrip additive in hot mix asphalt concrete. Batch and drum mix plants were used to prepare the paving mixtures. Lime was added dry and in slurry form. Individual aggregates and the total aggregate were separately treated with lime slurry and allowed to age for different time periods from a few minutes to 30 days before mixing with asphalt. Laboratory mixed and plant mixed asphalt concrete was tested using indirect tension and resilient modulus before and after moisture conditioning. Results indicate that lime is effective in reducing moisture susceptibility and that it is most effective when applied in the presence of moisture. In addition, a time delay after application of lime to aggregate is unnecessary. There are no significant differences in mixtures produced in batch and drum plants.
Book Synopsis Laboratory Evaluation of Anti-strip Additives in Hot Mix Asphalt by : Bradley J. Putnam
Download or read book Laboratory Evaluation of Anti-strip Additives in Hot Mix Asphalt written by Bradley J. Putnam and published by . This book was released on 2006 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of hydrated lime or other liquid anti stripping agents (ASA) is the most common method to improve the moisture susceptibility of asphalt mixes. However, most laboratory test conditions used to evaluate the moisture susceptibility of the mixes are only for a short duration of time. This might not be a good representation of the field conditions (i.e., several months or years of service). Thus, a study to evaluate the effects of conditioning the mixes for longer durations was initiated. Also, another problem with the use of the liquid anti stripping agents is their heat storage stability. This report addresses these two issues, by preparing and testing mixtures made with fresh binder for indirect tensile strength after conditioning the samples for 1, 7, 28, 90 and 180 days, and samples prepared from binder stored for three days at 160° C after conditioning them for 1, 28 and 90 days. The results of this study indicated that hydrated lime and the liquid anti stripping agents were equally effective for the mixes used in this research when conditioned beyond one day. In the case of samples prepared from stored binder, there was no significant difference in the effectiveness of hydrated lime and the liquid anti stripping agents even after conditioning for one day. Though it was observed that none of the ASA treatments performed better than others in the case of samples prepared with stored binder, it was also observed that almost all mixes gave significantly similar wet ITS and TSR values as samples prepared from fresh binder.
Book Synopsis Use of Lime as Anti-strip Additive for Mitigating Moisture Susceptibility of Asphalt Mixes Containing Baghouse Fines by : Aniruddha Vilas Shidhore
Download or read book Use of Lime as Anti-strip Additive for Mitigating Moisture Susceptibility of Asphalt Mixes Containing Baghouse Fines written by Aniruddha Vilas Shidhore and published by . This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: moisture sensitivity, hydrated lime, mix performance, Baghouse fines.
Book Synopsis Evaluation of Antistripping Additives by : G. W. Maupin
Download or read book Evaluation of Antistripping Additives written by G. W. Maupin and published by . This book was released on 1989 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several chemical antistripping additives were used in field installations and compared to a similar installation using hydrated lime. The performance of the installations was monitored periodically, and material that was sampled during construction was tested in the laboratory. The cores of mixes with less visual stripping showed a gradual increase in strength and stiffness with time, whereas mixes with considerable stripping showed little, if any, increase. Two additives influenced the viscosity of the asphalt significantly, thereby requiring the lowering of the required mixing and compaction temperatures.
Book Synopsis A Literature Review of Liquid Antistripping and Tests for Measuring Stripping by : Christine W. Curtis
Download or read book A Literature Review of Liquid Antistripping and Tests for Measuring Stripping written by Christine W. Curtis and published by . This book was released on 1990 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this literature review is to search the literature in the area of chemical and mineral agents used to promote adhesion of asphalt-aggregate mixes. In addition, tests performed to measure the effectiveness of these agents were reviewed. The information gained through this literature search and review provides background information for the research being performed in the SHRP A-003B contract. This literature search was performed using on-line chemical abstracts for documents in the time period of 1967 to present.
Book Synopsis Use of Antistripping Additives in Asphaltic Concrete Mixtures by :
Download or read book Use of Antistripping Additives in Asphaltic Concrete Mixtures written by and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :David G. Tunnicliff Publisher :Transportation Research Board National Research ISBN 13 : Total Pages :60 pages Book Rating :4.3/5 (555 download)
Book Synopsis Use of Antistripping Additives in Asphaltic Concrete Mixtures by : David G. Tunnicliff
Download or read book Use of Antistripping Additives in Asphaltic Concrete Mixtures written by David G. Tunnicliff and published by Transportation Research Board National Research. This book was released on 1984 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
