Performance properties of rubberized stone matrix asphalt mixtures produced through different processes

Xie, Zhaoxing; Shen, Junan

doi:10.1016/j.conbuildmat.2015.12.063

Cited by 41 publications

(14 citation statements)

References 6 publications

(7 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…o P#16R#30: CR particles passing #16 sieve and retained on #30 sieve with size between 0.6 -1. 18 mm for representing medium-sized fine aggregates. o P#30: CR particles passing #30 sieve with size smaller than 0.6 mm for representing small-sized fine aggregates.…”

Section: Crumb Rubber Particles Size and Content Selectionmentioning

confidence: 99%

“…Several overseas studies have found the wearing course structure built with dry process CRM-HMA to have inferior performance efficiency and fewer field applications than wet process CRM-HMA [11,18]. However, the dry process is more convenient to produce industrially as its production process is not much different from the conventional production process, with less extra work required during the paving process [6,7,12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influences of Particle Size and Content on Deformation Resistance of Crumb Rubber Modified Asphalt using Dry Process Mix

Unsiwilai¹,

Sangpetngam²

2018

View full text Add to dashboard Cite

Crumb Rubber Modified (CRM) is one of techniques for improving asphalt mixture performance. There are two alternatives for applying crumb rubber (CR) to Hot Mix Asphalt (HMA), "Wet" and "Dry". In the wet process, CR is added into hot asphalt cement in a factory, then CR-asphalt cement infusion is transported to a HMA plant for blending with hot aggregates. In the Dry process, CR is blended with hot aggregates and asphalt cement directly in a HMA plant. Although the dry process is considered less efficient due to lower infusion with asphalt cement, it offers some advantages that CR content can be independently controlled and higher amount of CR can be added into the HMA. This study focuses on dry process that uses CR modification by replacing some aggregate particles in mixture. HMA is blended with CR in 3 different sizes: 1.18-2.36mm, 0.6-1.18mm and smaller than 0.6mm. The x-sized CR is added to the mixture in substitution of the same x-sized aggregate particles at the amount of 1% and 2% by the whole aggregate volume in the mixture. The mixtures' performance in deformation resistance is represented by Wheel Tracking Slope (WTS). The results of Wheel Tracking tests on the specimens are enlightening. The mixture with CR particles smaller than 0.6mm shows excellent performance on deformation resistance, indicated by significantly lower WTS than others. Secondly, mixtures with higher amounts of CR have better performance than those with lower amounts. The mixture with 2% CR with smaller than 0.6mm provides optimal performance at 2.1 times better than conventional HMA.

show abstract

Section: Crumb Rubber Particles Size and Content Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influences of Particle Size and Content on Deformation Resistance of Crumb Rubber Modified Asphalt using Dry Process Mix

Unsiwilai¹,

Sangpetngam²

2018

View full text Add to dashboard Cite

show abstract

“…However, there is no apparent difference in the softening point of rubberized asphalt in various rubber powder contents. This cannot effectively distinguish the difference in the high-temperature performance and viscoelastic properties of rubberized asphalt [ 20 ].…”

Section: Test Results and Discussionmentioning

confidence: 99%

“…Rubberized asphalt produced on-site is time limited; after a certain point, its performance will be significantly reduced—e.g., in a low construction environment [ 8 , 13 ]. Most of the manufacturing process of asphalt rubber is on-site production, and a sufficient working surface must be added at the construction site to complete the production of asphalt rubber [ 19 , 20 ]. If the project volume is not large, there is the risk of producing a large amount of waste, which is also an obstacle to the promotion of rubberized asphalt—underdeveloped construction and workability [ 3 , 7 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Investigation of Rubberized Asphalt Using High-Content Rubber Powder

Wang

et al. 2020

Materials

View full text Add to dashboard Cite

Rubberized asphalt (RA) has been successfully applied in road engineering due to its excellent performance; however, the most widely used rubber content is about 20%.To improve the content of waste rubber and ensure its performance, seven rubberized asphalts with different powder content were prepared by high-speed shearing. Firstly, penetration, softening point, and ductility tests were carried out to investigate the conventional physical features of high-content rubberized asphalt (HCRA). Then, the dynamic shear rheometer test (DSR) was conducted to estimate the high-temperature rheological properties. The bending beam rheometer test (BBR) was carried out to evaluate the low-temperature rheological performance. Finally, combined with the macroscopic performance test, the modification mechanism was revealed by the Fourier transform infrared reflection (FTIR) test, and scanning electron microscope (SEM) analysis was used to observe the microscopic appearance before and after aging. The results show that rubberized asphalt has excellent properties in high- and low-temperature conditions, and fatigue resistance is also outstanding compared with neat asphalt. As the crumb rubber content increases, it is evident that the 40% RA performance is the best. The low-temperature properties of HCRA are better than the traditional 20% rubberized asphalt. This study provides a full test foundation for the efficient utilization of HCRA in road engineering.

show abstract

“…Ali et al assessed antirutting properties of WMA (Warm Mix Asphalt) by using APA, pointing out that reducing the production temperature of foamed WMA might result in the increasing potential of permanent deformation and moisture-induced damage [10]. Xie and Shen researched the rutting resistance, moisture susceptibility, and fatigue resistance of rubberized SMA (Stone Matrix Asphalt), analyzing the incorporation of CRM (Crumb Rubber Modifier) by using APA [11]. Malladi et al researched moisture and rutting susceptibility of WMA by using APA and indicated that WMA performance is on a par with that of HMA and good potential for the widespread use of WMA [12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Test Conditions on APA Rutting and Prediction Modeling for Asphalt Mixtures

Wang

Tan

et al. 2017

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

APA rutting tests were conducted for six kinds of asphalt mixtures under air-dry and immersing conditions. The influences of test conditions, including load, temperature, air voids, and moisture, on APA rutting depth were analyzed by using grey correlation method, and the APA rutting depth prediction model was established. Results show that the modified asphalt mixtures have bigger rutting depth ratios of air-dry to immersing conditions, indicating that the modified asphalt mixtures have better antirutting properties and water stability than the matrix asphalt mixtures. The grey correlation degrees of temperature, load, air void, and immersing conditions on APA rutting depth decrease successively, which means that temperature is the most significant influencing factor. The proposed indoor APA rutting prediction model has good prediction accuracy, and the correlation coefficient between the predicted and the measured rutting depths is 96.3%.

show abstract

Performance properties of rubberized stone matrix asphalt mixtures produced through different processes

Cited by 41 publications

References 6 publications

Influences of Particle Size and Content on Deformation Resistance of Crumb Rubber Modified Asphalt using Dry Process Mix

Influences of Particle Size and Content on Deformation Resistance of Crumb Rubber Modified Asphalt using Dry Process Mix

Laboratory Investigation of Rubberized Asphalt Using High-Content Rubber Powder

Effects of Test Conditions on APA Rutting and Prediction Modeling for Asphalt Mixtures

Contact Info

Product

Resources

About