scholarly journals Influence of Compaction Method on Rutting Resistance of Hot Mix Asphalt

2020 ◽  
Vol 881 ◽  
pp. 012177
Author(s):  
Namir Ahmed Alkawaaz ◽  
Noor Moutaz Asmael
Keyword(s):  
Hot Mix Asphalt ◽  
Rutting Resistance ◽  
Compaction Method

Strategic Highway Research Program gyratory compaction for predicting air voids of Saskatchewan SPS-9A asphalt mixes after 10 years of performance in the field

2012 ◽  
Vol 39 (8) ◽  
pp. 897-905 ◽  
Author(s):  
Aziz Salifu ◽  
Curtis Berthelot ◽  
Ania Anthony ◽  
Brent Marjerison
Keyword(s):  
Asphalt Concrete ◽  
Material Properties ◽  
Hot Mix Asphalt ◽  
Permanent Deformation ◽  
Test Site ◽  
Asphalt Mixes ◽  
Air Voids ◽  
Need To Evaluate ◽  
Gyratory Compaction ◽  
Compaction Method

Many Saskatchewan provincial highways exhibit permanent deformation that is mostly attributed to reduction in air voids in hot mix asphalt concrete surfacing. The Saskatchewan Ministry of Highways and Infrastructure (MHI) currently use the Marshall compaction method for hot mix asphalt concrete (HMAC) design and placement quality control and quality assurance. It has been found that the Marshall compaction method does not accurately predict field air voids. Therefore, MHI identified the need to evaluate the SuperpaveTM gyratory compaction method to predict field air voids of typical Saskatchewan asphalt mixes. This paper presents a summary of laboratory and field volumetric as well as rapid triaxial mechanistic material properties of typical Saskatchewan asphalt mixes. This research considered seven asphalt mixes from the Radisson Specific Pavement Study (SPS)-9A test site comprising two conventional Saskatchewan Marshall Type 71 mixes, five SuperpaveTM mixes, and a SuperpaveTM recycled mix. This research determined that Marshall compaction and the gyratory compaction at 1.25° gyration angle underestimate the collapse of field air voids. This research also showed that the gyratory compaction method at 2.00° angle of gyration more accurately predicted field air voids of the asphalt mixes constructed as part of test site.

Low Energy Compaction of Aggregate Packing Mechanism

2014 ◽  
Vol 567 ◽  
pp. 422-427
Author(s):  
Yasreen G. Suliman ◽  
Napiah Madzlan ◽  
Ibrahim Kamaruddin ◽  
Johnson A. Olufemi
Keyword(s):  
Hot Mix Asphalt ◽  
Heavy Traffic ◽  
Engineering Properties ◽  
Bituminous Mixture ◽  
Rutting Resistance ◽  
Mixture Density ◽  
Aggregate Interlocking ◽  
Aggregate Packing ◽  
Compaction Energy ◽  
Energy Compaction

Aggregate packing mechanism and its properties are always significant in the compaction, density and consequential strength and resistance of the bituminous mixture. Realizing that aggregate interlocking contributes to the strength, the packing of aggregate would increase the force of intact between aggregates. This work is focused on improving the compaction energy, engineering properties and rutting resistance of bituminous mixture by using the aggregate packing concept. After obtaining the optimum proportions for developed mixture via packing test, hot-mix asphalt samples are prepared and compacted with 50 and 75 blows, while well graded hot-mix asphalt samples are compacted with 75 blows. The Marshall Test result showed that developed mixture at lower compaction energy meets all the requirements of asphaltic concrete for heavy traffic and also exhibit higher density, stability, and lower air voids and voids in mineral aggregate compared to the well graded mixture. Developed mixture also demonstrated higher mixture stiffness and lower rut depth compared to the well graded one. This is due to the optimal distribution of the various aggregates sizes of developed mixture, which gives the interlocking necessary and stone to stone contact to improve the mixture density, stiffness and rutting resistance.

scholarly journals The effect of aggregate and compaction method on the physical properties of hot mix asphalt

2019 ◽  
Vol 512 ◽  
pp. 012003
Author(s):  
Mutahar Abdul Salam Al-ammari ◽  
Fauzan Mohd Jakarni ◽  
Ratnasamy Muniandy ◽  
Salihudin Hassim
Keyword(s):  
Physical Properties ◽  
Hot Mix Asphalt ◽  
Compaction Method

Evaluation of the laboratory compaction method on the air voids and the mechanical behavior of hot mix asphalt

2017 ◽  
Vol 156 ◽  
pp. 424-434 ◽  
Author(s):  
Rodrigo Pires Leandro ◽  
Kamilla L. Vasconcelos ◽  
Liedi Légi Bariani Bernucci
Keyword(s):  
Mechanical Behavior ◽  
Hot Mix Asphalt ◽  
Air Voids ◽  
Compaction Method

scholarly journals INVESTIGATION ON INDICES OF WORKABILITY AND RUTTING RESISTANCE FOR WEARING COURSE MIXTURES

2017 ◽  
Vol 12 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Tran Thanh Nhat ◽  
Osamu Takahashi
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Energy Parameter ◽  
Resistance Index ◽  
Strong Relationship ◽  
Maximum Density ◽  
Asphalt Mixtures ◽  
Rutting Resistance ◽  
Gyratory Compaction ◽  
Index Value

Simple indices easily help to evaluate a performance of hot mix asphalt mixtures. This study aimed to develop a simple workability index and rutting resistance index for wearing course mixtures. Seven aggregate gradations were prepared to investigate dense, coarse, and fine-graded hot mix asphalt mixtures. The study used the Marshall compactor to fabricate specimens. The Superpave Gyratory Compaction was employed to measure the workability of the seven blends, namely the workability energy parameter of asphalt mixtures. The study also conducted Wheel Tracking Test to evaluate rutting resistance of those mixtures. The results showed a strong relationship between the workability index and the workability energy of hot mix asphalt mixtures, namely increasing the workability energy of mixtures with increasing the workability index value. The workability energy value of an asphalt mixture may be high when the area of continuous maximum density for a proportion of stone, which illustrates a degree of far away from the Fuller maximum density line, is low. Moreover, the rutting resistance index correlated well with rutting resistance of the hot mix asphalt mixtures.

scholarly journals Evaluation of stiffness to predict rutting resistance of hot-mix asphalt: a Canadian case study

2014 ◽  
Vol 9 (4) ◽  
pp. 283-296
Author(s):  
Md Safiuddin ◽  
Susan Louise Tighe ◽  
Ludomir Uzarowski
Keyword(s):  
Regression Analysis ◽  
Dynamic Modulus ◽  
Hot Mix Asphalt ◽  
Resilient Modulus ◽  
Design Method ◽  
Strong Relationship ◽  
Dynamic Moduli ◽  
Rutting Resistance ◽  
The Relationship ◽  
French Laboratory

This paper investigates the relationship between the stiffness and rutting resistance of hot-mix asphalt. Ten different types of hot-mix asphalt were examined. The Superpave mix design method was utilized to produce nine mixes; the remaining mix was designed using the Marshall method. The asphalt mixes were tested for stiffness and rutting resistance under the Centre for Pavement and Transportation Technology research program at the University of Waterloo. The stiffness was determined by the laboratory resilient and dynamic moduli tests. The dynamic modulus test was conducted at six different loading frequencies and five different temperatures. The rutting test was executed by the Hamburg Wheel Rut Tester and the French Laboratory Rutting Tester to obtain rutting depth. The regression analysis was performed to examine the relationships of resilient and dynamic moduli with rutting depth. The results of the regression analysis revealed that resilient modulus did not correlate well with rutting depth. In contrast, dynamic modulus showed strong correlation with rutting depth for a number of loading frequencies and temperatures. The strong relationship was observed at the higher temperatures of +46.1 oC and +54.4 oC. Moreover, the relationship between dynamic modulus and rutting depth was better for lower loading cycles/wheel passes applied in the rutting test. It was also noticed that dynamic modulus exhibited a better relationship with rutting depth obtained from the French Laboratory Rutting Tester. The overall findings indicate that the dynamic moduli obtained at 0.1–1.0 Hz and +46.1–(+54.4) oC are useful to predict the rutting resistance of hot-mix asphalt.

Effect of Rejuvenators on Performance of Recycled Hot Mix Asphalt Mixtures

2011 ◽  
Vol 71-78 ◽  
pp. 1068-1072 ◽  
Author(s):  
Dong Liang Kuang ◽  
Zhen Gang Feng ◽  
Heng Long Zhang ◽  
Jian Ying Yu
Keyword(s):  
Stress Ratio ◽  
Hot Mix Asphalt ◽  
High Stress ◽  
Asphalt Mixture ◽  
Fatigue Property ◽  
High Viscosity ◽  
Water Stability ◽  
Rutting Resistance ◽  
Low Viscosity ◽  
Application Requirements

Effects of different viscosity rejuvenators on performance of recycled hot mix asphalt (RHMA) mixture were investigated by testing of water stability, fatigue property and rutting resistance. The results indicate that rejuvenator with low viscosity shows more significant influence on the enhancement of fatigue property at high stress ratio and water stability of RHMA mixture than rejuvenator with high viscosity due to its better diffusion ability into aged bitumen. The water stability and fatigue property of RHMA mixture with 15 wt% low viscosity rejuvenator can be close to virgin hot mix asphalt mixture. Compared with rejuvenators of medium and high viscosity, the rutting resistance of RHMA mixture is reduced more obviously by rejuvenator with low viscosity, but still meets the application requirements of RHMA mixture.

Evaluation of the hot mix asphalt compactability utilizing the impact compaction method

2018 ◽  
Vol 187 ◽  
pp. 131-137 ◽  
Author(s):  
Pawel Polaczyk ◽  
Bingye Han ◽  
Baoshan Huang ◽  
Xiaoyang Jia ◽  
Xiang Shu
Keyword(s):  
Hot Mix Asphalt ◽  
The Impact ◽  
Compaction Method
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