Determining the Relationship Among Hamburg Wheel-Tracking Test Parameters and Correlation to Field Performance of Asphalt Pavements

2020 ◽  
Vol 2674 (4) ◽  
pp. 281-291 ◽  
Author(s):  
Fan Yin ◽  
Chen Chen ◽  
Randy West ◽  
Amy Epps Martin ◽  
Edith Arambula-Mercado
Keyword(s):  
Field Performance ◽  
Asphalt Mixtures ◽  
Test Results ◽  
Moisture Susceptibility ◽  
Rutting Resistance ◽  
Test Parameters ◽  
Wide Range ◽  
Wheel Tracking Test ◽  
Wheel Tracking ◽  
Hamburg Wheel Tracking

The Hamburg wheel-tracking test (HWTT) is commonly used to evaluate the rutting resistance and moisture susceptibility of asphalt mixtures. Over the years, different test parameters have been proposed, including the traditional ones specified in AASHTO T 324 and several alternatives developed by asphalt researchers. This study was undertaken to refine the HWTT method toward enhancing its implementation as part of balanced mix design specifications for asphalt mixtures. A HWTT database was developed including test results of over 70 mixtures with a wide range of mixture components and production parameters. Data analyses were conducted to examine the relationships among various HWTT parameters, determine their correlations to field performance data, and estimate the within-laboratory repeatability of the test results. Two alternative rutting parameters, rutting resistance index ( RRI) and corrected rut depth ( CRD), were found to be advantageous over the traditional parameters of total rut depth ( TRD) and creep slope ( CS). RRI allows for direct comparison of results with different termination points, and CRD isolates the rut depth resulting from permanent deformation from that caused by stripping. Among all the rutting parameters, RRI had the best correlation to field rut depth, followed by CS, CRD, and TRD. Receiver operating characteristic analysis was conducted to determine the correspondence between HWTT results and pavement field performance related to moisture susceptibility. The analysis identified 9,000 passes as the best criterion for stripping inflection point and 2,000 passes for the alternative moisture susceptibility parameter, stripping number. Finally, the within-laboratory repeatability of HWTT rut depth measurements was determined.

scholarly journals Establishing Indicators and an Analytic Method for Moisture Susceptibility and Rutting Resistance Evaluation Using a Hamburg Wheel Tracking Test

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3269
Author(s):  
Wei-Han Wang ◽  
Chien-Wei Huang
Keyword(s):  
Inflection Point ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Analytic Method ◽  
Moisture Susceptibility ◽  
Rutting Resistance ◽  
Novel Method ◽  
Wheel Tracking Test ◽  
Wheel Tracking ◽  
Hamburg Wheel Tracking

The Hamburg wheel tracking test (HWTT) is widely used to evaluate the performance of asphalt mixtures. According to HWTT specifications, the stripping inflection point (SIP) and the rut depth at a certain number of load cycles are two common indicators for evaluating the moisture susceptibility and rutting resistance of asphalt mixtures, respectively. Although these indicators have been used extensively by several transportation institutions, the reliability and stability in evaluating asphalt mixture behaviors of these indicators have been questioned. To more effectively evaluate the performance of asphalt mixture in the HWTT, this study introduces a novel method of analysis for the HWTT and novel indicators of rutting resistance and moisture susceptibility. The proposed method and indicators were employed to analyze the HWTT results of 14 field core specimens, and the proposed indicators were compared with conventional HWTT indicators to assess their capability of distinction between asphalt mixtures with different performance behaviors in the HWTT. The results indicate that the conventional HWTT indicators cannot effectively evaluate the asphalt mixtures with different performance in the HWTT. By contrast, the proposed analytic method and indicators have significant advantages to effectively evaluate and distinguish the rutting resistance and moisture susceptibility of asphalt mixtures.

Pavement Performance of Hot In-Place Recycling for Waste Asphalt Mixtures

2013 ◽  
Vol 668 ◽  
pp. 292-296
Author(s):  
Ya Li Ye ◽  
Chuan Yi Zhuang ◽  
Jia Bo Hu
Keyword(s):  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Asphalt Pavements ◽  
Pavement Performance ◽  
Test Results ◽  
Technical Parameters ◽  
Stable Performance ◽  
Wheel Tracking Test ◽  
Asphalt Content ◽  
Wheel Tracking

With the early asphalt pavements have been into the stage of medium maintenance or overhaul, recycling is a very important way for waste asphalt mixtures. A sample was taken in the expressway from Huhhot to Baotou, and the waste mixtures were extracted from field and sieved; so that the new aggregates can be determined and mix design was carried. With the aid of the penetration, the softening point and the viscosity in 135°C test, the quantity of the regenerant and the asphalt content were ascertained. Through the high temperature stable performance, the anti-low temperature performance, the water stability and the Hamburg wheel-tracking test, the appropriate gradation and the optimum asphalt content were determined. The test results showed that the pavement performance of the waste asphalt mixture was enhanced obviously with hot in-place recycling, and it has achieved technical parameters for old asphalt mixture.

Novel Method for Moisture Susceptibility and Rutting Evaluation Using Hamburg Wheel Tracking Test

2014 ◽  
Vol 2446 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Fan Yin ◽  
Edith Arambula ◽  
Robert Lytton ◽  
Amy Epps Martin ◽  
Lorena Garcia Cucalon
Keyword(s):  
Moisture Susceptibility ◽  
Novel Method ◽  
Wheel Tracking Test ◽  
Wheel Tracking ◽  
Hamburg Wheel Tracking

Study on Water Stability of Bitumen Mixture Under High Temperature and Moisture Conditions

2011 ◽  
Vol 374-377 ◽  
pp. 1451-1454
Author(s):  
Hong Ying Liu
Keyword(s):  
High Temperature ◽  
Hydrated Lime ◽  
Asphalt Mixtures ◽  
Moisture Susceptibility ◽  
Moisture Condition ◽  
Wheel Tracking Test ◽  
Performance Enhancers ◽  
Moisture Conditions ◽  
Wheel Tracking ◽  
Lime Stone

The Work made use of two different asphalts-Shengli and Kalamayi and two different aggregates-Granite and Lime-stone to study the performance of asphalt mixtures under high temperature and moisture condition. Two modifers AST-3 and hydrated lime were investigated as prospective performance enhancers. Film stripping and marshall’s Retained stability tests were used to determined the adhesion characteristics and Moisture susceptibility of mixture, immersion wheel tracking test was used to study the rutting potential at high temperature in the presence of moisture.

Influence of gradation on asphalt mix rutting resistance measured by Hamburg Wheel Tracking test

2020 ◽  
Vol 238 ◽  
pp. 117674 ◽  
Author(s):  
Quan Lv ◽  
Weidong Huang ◽  
Mao Zheng ◽  
Husam Sadek ◽  
Yuan Zhang ◽  
...  
Keyword(s):  
Rutting Resistance ◽  
Asphalt Mix ◽  
Wheel Tracking Test ◽  
Wheel Tracking ◽  
Hamburg Wheel Tracking

Use of the Hamburg Wheel-Tracking Test to Characterize Asphalt Mixtures in Cool Weather Regions

2017 ◽  
Vol 2633 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Daniel Swiertz ◽  
Cheng Ling ◽  
Pouya Teymourpour ◽  
Hussain Bahia
Keyword(s):  
Test Temperature ◽  
Moisture Damage ◽  
Testing Temperature ◽  
Mixture Design ◽  
Design Tool ◽  
Asphalt Mixtures ◽  
Deformation Resistance ◽  
Wheel Tracking Test ◽  
Wheel Tracking ◽  
Hamburg Wheel Tracking

The Hamburg wheel-tracking test (HWTT) has shown promise to predict permanent deformation resistance and moisture damage potential of asphalt mixtures. Several state agencies have implemented the test as a mixture evaluation and design tool. One aspect of the test that remains a topic of research is the testing temperature. Many studies and specifications use 50°C for all testing, but some use a test temperature that depends on the base asphalt used in the mixture. Concern exists about the use of 50°C as the sole test temperature in cooler weather regions, such as Wisconsin, because the asphalts used in such regions tend to be relatively soft (high temperature grades of PG 58 and below). This paper presents findings in support of an effort to apply the HWTT to mixtures in cold climates with the use of three test temperatures and several mixture design variables. The paper presents the effects of the mixture design traffic level, the PG of the binder, and the binder modification level on the deformation resistance, creep slope, stripping slope, and stripping inflection point (SIP). The HWTT was found to be sensitive to the factors evaluated in this study. On the basis of statistical analysis of the test data, logical trends were observed. The testing temperature was found to affect not only the response variables but also the level of significance of controlled factors. The effectiveness of the SIP to characterize the moisture sensitivity of mixtures requires more research to validate the effect of moisture damage on HWTT results.

scholarly journals Evaluation of warm mix asphalt performance incorporating high RAP content

2016 ◽  
Vol 43 (4) ◽  
pp. 343-350 ◽  
Author(s):  
Xuan Dai Lu ◽  
Mofreh Saleh
Keyword(s):  
Asphalt Pavement ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Reclaimed Asphalt Pavement ◽  
Test Results ◽  
Moisture Susceptibility ◽  
Rutting Resistance ◽  
Reclaimed Asphalt ◽  
Asphalt Performance ◽  
Characterization Test

Using reclaimed asphalt pavement (RAP) increases the sustainability benefits and can enhance the performance of warm mix asphalt (WMA) compared to traditional hot mix asphalt (HMA). However, the RAP content is generally limited in WMA because adding high RAP content may reduce the performance of WMA. In this paper, the authors studied the possibility of incorporating high RAP content from 25 to 70% by mass of WMA by using Evotherm as an additive. Laboratory performance of WMA–RAP mixtures was characterized and compared to a control HMA in terms of moisture susceptibility, rutting resistance, and fatigue characterization. Test results showed that Evotherm greatly improved the moisture resistance of WMA–RAP mixtures compared to HMA. Increasing RAP content made WMA–RAP mixtures stiffer and enhanced the rutting resistance, but decreased the fatigue resistance of the mixtures. Therefore, the maximum RAP content needs to be determined to ensure balance between the fatigue and rutting characteristics of asphalt mixtures.

Effectiveness of Loaded Wheel Tracking Test to Ascertain Moisture Susceptibility of Asphalt Mixtures

2021 ◽  
pp. 036119812110363
Author(s):  
Moses Akentuna ◽  
Louay N. Mohammad ◽  
Sanchit Sachdeva ◽  
Samuel B. Cooper ◽  
Samuel B. Cooper
Keyword(s):  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Moisture Damage ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Creep Recovery ◽  
Moisture Susceptibility ◽  
Freeze Thaw ◽  
Wheel Tracking ◽  
Mixture Samples

Moisture damage of asphalt mixtures is a major distress affecting the durability of asphalt pavements. The loaded wheel tracking (LWT) test is gaining popularity in determining moisture damage because of its ability to relate laboratory performance to field performance. However, the accuracy of LWT’s “pass/fail” criteria for screening mixtures is limited. The objective of this study was to evaluate the capability of the LWT test to identify moisture susceptibility of asphalt mixtures with different moisture conditioning protocols. Seven 12.5 mm asphalt mixtures with two asphalt binder types (unmodified PG 67-22 and modified PG 70-22), and three aggregate types (limestone, crushed gravel, and a semi-crushed gravel) were utilized. Asphalt binder and mixture samples were subjected to five conditioning levels, namely, a control; single freeze–thaw-; triple freeze–thaw-; MiST 3500 cycles; and MiST 7000 cycles. Frequency sweep at multiple temperatures and frequencies, and multiple stress creep recovery tests were performed to evaluate asphalt binders. LWT test was used to evaluate the asphalt mixture samples. Freeze–thaw and MiST conditioning resulted in an increase in stiffness in the asphalt binders as compared with the control. Further, freeze–thaw and MiST conditioning resulted in an increase in rut depth compared with the control asphalt mixture. The conditioning protocols evaluated were effective in exposing moisture-sensitive mixtures, which initially showed compliance with Louisiana asphalt mixture design specifications.

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