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Statistical Evaluation Of Additive Effectiveness In Asphalt Paving Mixtures
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Book Synopsis Statistical Evaluation of Additive Effectiveness in Asphalt Paving Mixtures by : WV. Ping
Download or read book Statistical Evaluation of Additive Effectiveness in Asphalt Paving Mixtures written by WV. Ping and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt pavements are susceptible to moisture damage. One of the procedures to eliminate or minimize the damage is to treat the asphalt paving mixtures with an antistripping agent such as hydrated lime or other commercially available antistripping additives. Statistical analysis is essential to evaluate the effectiveness of various treatments in asphalt mixtures. This paper summarizes a research study to evaluate the effectiveness of asphalt treatments utilizing statistical pairwise comparisons. The approach is to use the boiling test results to do the statistical comparison.
Book Synopsis Quality and Statistics by : Milton J. Kowalewski
Download or read book Quality and Statistics written by Milton J. Kowalewski and published by ASTM International. This book was released on 1994 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 An Evaluation of Effectiveness of Antistripping Additives in Protecting Asphalt Mixtures from Moisture Damage by :
Download or read book An Evaluation of Effectiveness of Antistripping Additives in Protecting Asphalt Mixtures from Moisture Damage written by and published by . This book was released on 1991 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis A Mechanistic Evaluation of Modified Asphalt Paving Mixtures by :
Download or read book A Mechanistic Evaluation of Modified Asphalt Paving Mixtures written by and published by . This book was released on 1994 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main purpose of this study was to facilitate decisions concerning the effectiveness of modifiers in mitigating pavement distress and improving long-term overall pavement performance in actual field conditions, by utilizing short-term laboratory results and a mathematical prediction model. The modifiers investigated were carbon black, neoprene latex, and polymer modified asphalt (STYRELF). The statistical general linear model (GLM) and the Fisher least significant difference (LSD) were used for the analysis of data. The results of the study indicate that the effect of the modifier on the paving mixture properties was insignificant at low temperatures (down to -17 degrees C), but significant at high temperatures (up to 60 degrees C) where the synergistic effect of the modifier on the paving mixture was pronounced. The VESYS IIIA pavement performance prediction model was utilized to assess the effects, if any, of the modifier on the pavement's overall performance. All the modifiers improve, to some degree, the overall pavement performance.
Book Synopsis Effectiveness of Antistripping Additives: Final report by :
Download or read book Effectiveness of Antistripping Additives: Final report written by and published by . This book was released on 1989 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laboratory Evaluation of Warm Mix Asphalt Influence on Theoretical Maximum Specific Gravity by : Jianhua Yu
Download or read book Laboratory Evaluation of Warm Mix Asphalt Influence on Theoretical Maximum Specific Gravity written by Jianhua Yu and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Warm mix asphalt (WMA) technology provides sufficient workability for asphalt mixtures at reduced mixing and compaction temperatures. Depending on the WMA technology, the typical temperature reduction range is 20 °C to 55 °C below hot mix asphalt (HMA) production temperatures. WMA involves chemical and wax additives that are added to an asphalt binder or incorporated through the use of foaming technology. The main advantages of WMA are reduced emissions and a reduction in combustible fuel consumption. Ongoing WMA research projects have documented some differences between HMA and WMA mixes, prompting numerous research projects that are investigating these concerns. The purpose of this research is to evaluate the volumetric properties by directly comparing laboratory produced WMA and HMA mixes. This study investigates the impact of WMA additives on the volumetric properties, specifically, the theoretical maximum specific gravity (Gmm). The Gmm testing followed the procedure of ASTM D2041. Two mix designs with HMA binder were produced, one without recycled asphalt pavement (RAP) and the other with 30 % RAP. After the mix designs were completed, no additional changes were made to account for the addition of the WMA technology. The mixes included the WMA technologies Sasobit and Advera, as well as an HMA control, for a total of six different laboratory produced mixes. Each mix was produced at 120 °C, 135 °C, and 150 °C, and each mix was oven cured for 1, 2, and 4 h. The test results were analyzed using statistical principles to determine whether differences in the Gmm values were statistically significant. The results show that temperature has little impact on Gmm. Gmm was not affected by curing times of 1 and 2 h, but the longer curing time of 4 h resulted in a statistically significant increase in Gmm. Further analysis revealed that the mix sensitivity to curing time depends on the amount of RAP in the mix. For the mix designs studied, the Advera Gmm values were similar to the HMA values, but the Sasobit Gmm values were statistically lower than the Advera values.
Book Synopsis Statistical Evaluation of the Effects of Mix Design Properties on Performance Indices of Asphalt Mixtures by : Rasool Nemati
Download or read book Statistical Evaluation of the Effects of Mix Design Properties on Performance Indices of Asphalt Mixtures written by Rasool Nemati and published by . This book was released on 2020 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Asphalt Additives for Improved Cracking and Rutting Resistance of Asphalt Paving Mixtures by : Chuang-Tsair Shih
Download or read book Evaluation of Asphalt Additives for Improved Cracking and Rutting Resistance of Asphalt Paving Mixtures written by Chuang-Tsair Shih and published by . This book was released on 1996 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effectiveness of Antistripping Additives: Literature review by :
Download or read book Effectiveness of Antistripping Additives: Literature review written by and published by . This book was released on 1989 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A New Perspective of Understanding Compaction of Particulate Asphalt Mixtures by : Shuai Yu
Download or read book A New Perspective of Understanding Compaction of Particulate Asphalt Mixtures written by Shuai Yu and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effective compaction is crucial for the performance and durability of asphalt pavement. Traditional field compaction, relying heavily on engineers' experience and test strips, sometimes could be problematic to achieve a unified pavement with a desirable density, especially with new materials. To address these challenges, Intelligent Compaction (IC) has been developed to equip the vibratory rollers with GPS, accelerometers, onboard computers, and infrared thermometers to facilitate the quality control of pavement compaction. This technology allows for real-time monitoring and visualization of pavement responses and temperatures, significantly improving compaction uniformity. However, accurately predicting pavement density remains challenging due to the multilayered pavement structure and the complex interactions between the roller drum and the viscoelastic asphalt mixture. To understand the compaction mechanism and improve the compaction quality of the asphalt pavement, a Microelectromechanical System (MEMS) sensor, SmartKli was employed to study the asphalt mixture compaction at the mesoscale. It was found that the compaction characteristics at the macroscale are closely related to the behavior of coarse aggregates at the mesoscale level. The particle rotation plays a critical role in the densification of the asphalt specimens. Utilizing the Discrete Element Model (DEM), the impact of mix design and particle property on kinematic behaviors was examined. The mixture gradation and particle size also greatly affect the aggregates' behavior during compaction. Based on the developed compaction mechanism, a new method for evaluating asphalt mixture workability was proposed, incorporating workability parameters, compaction curves, and statistical analysis of compaction data. By verifying with different asphalt types including Hot Mix Asphalt (HMA), Warm Mix Asphalt (WMA), and Recycled Plastic Modified Asphalt (RPMA), this method could effectively assess the influence of various factors like asphalt content, compaction temperature, and additives on mixture workability, aiding in optimizing mix design and construction conditions. Moreover, an innovative compaction monitoring system was developed to accurately predict the compaction conditions of the asphalt pavement. This system uses a wireless particle size sensor for data acquisition and a machine learning model for density prediction. Linking laboratory gyratory and field roller compaction data through particle kinematic behaviors, the system achieved high precision in density prediction with a prediction error of less than 0.7%. The results demonstrate that integrating AI and sensing data is effective for predicting asphalt mixture compaction. This system could significantly enhance the compaction quality of asphalt pavement and contribute to the comprehensive quality control and assurance of pavement construction.
Book Synopsis Asphalt Materials and Mixtures, 2014 by :
Download or read book Asphalt Materials and Mixtures, 2014 written by and published by . This book was released on 2014 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2445 consists of 12 papers that examine the low-temperature characterization of foamed warm-mix asphalt produced by water injection; an analytical methodology to determine the composition of filler used in hot-mix asphalt; effects of binder modification on aggregate structure and thermovolumetric properties of asphalt mixtures; and a statistical analysis of the influence of mix design parameters on mechanical properties of mixes with reclaimed asphalt pavement. This issue also explores new additives for use in hot in-place recycling to improve performance of reclaimed asphalt pavement mix; the effect of crumb rubber dissolution on low-temperature performance and aging of asphalt-rubber binder; laboratory investigation of biochar-modified asphalt mixture; and a laboratory study on effects of high reclaimed asphalt pavement and binder content, which include stiffness, fatigue resistance, and rutting resistance. Additionally, this TRR explores the production, construction, and properties of high reclaimed asphalt pavement mixtures; strategies for incorporating higher recycled asphalt pavement percentages; the laboratory performance of asphalt mixtures containing recycled asphalt shingles; and testing of fine asphalt mixtures to quantify effectiveness of asphalt binder replacement using recycled shingles.
Book Synopsis Significance Evaluation of Material and Additive Factors Influencing Moisture Susceptibility of Asphalt Mixtures by : Menglan Zeng
Download or read book Significance Evaluation of Material and Additive Factors Influencing Moisture Susceptibility of Asphalt Mixtures written by Menglan Zeng and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many factors have been identified to have influences on the moisture susceptibility of asphalt mixtures. This research study attempts to evaluate such factors as binder type, aggregate type, mixture type, additive usage, additive type, additive application approach, and additive organic nature. Tensile strength ratio (TSR) was tested on twelve asphalt mixtures of three types, with two binders and three aggregates, and with improving measures as three antistripping additives and two application approaches. Multiple variable statistical analyses were employed on the TSR data in assessing the significance of the factor. Test results and data analyses indicate that the extent of the influence varies considerably from one factor to another. The styrene-butadiene-styrene modified binder is superior to neat petroleum binder for producing asphalt mixtures subject to damp conditions. Granite, basalt, and limestone aggregates make asphalt mixtures that are least, in-between, and most resistant to moisture damage, respectively. Compared with dense graded asphalt concrete (AC) and stone matrix asphalt (SMA) mixtures, porous asphalt macadam (AM) mixtures are more prone to stripping. The usage of inorganic hydrated lime and Portland cement, and organic amine antistripping agent can substantially improve the moisture susceptibility of asphalt mixtures; the wet approach for applying the inorganic additives can result in better effects than the dry approach. Different additives show little difference in improving effects with mixed trends and the inorganic and organic additives are similar in performance with variations that are immaterial.
Book Synopsis Evaluation of Asphalt Additives for Improved Cracking and Rutting Resistance of Asphalt Paving Mixtures by :
Download or read book Evaluation of Asphalt Additives for Improved Cracking and Rutting Resistance of Asphalt Paving Mixtures written by and published by . This book was released on 1994 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Statistical Methods in Evaluating Asphalt Mixture Homogeneity by : Y. Peng
Download or read book Application of Statistical Methods in Evaluating Asphalt Mixture Homogeneity written by Y. Peng and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogeneity is one of the most important factors affecting the performance-related properties of asphalt mixtures. Pavement condition surveys have shown various patterns of distress due to segregation and other types of non-uniformity. Using digital image processing, a statistical method was developed to evaluate asphalt mixture homogeneity quantitatively. Aggregate particle distribution in asphalt mixtures was described and analyzed by aggregate particle frequency statistic and distance statistic. The index of homogeneity was presented through aggregate particle distribution. The relevance of homogeneity to some mixture performance properties was also investigated. Results show that asphalt mixture homogeneity can be assessed quantitatively by the values of aggregate particle frequency statistic and distance statistic. Moreover, homogeneity dominates variations in mixture performance properties.
