The effect of two-phase mixing on the functional and mechanical properties of TPS/SBS-modified porous asphalt concrete

2021 ◽  
Vol 270 ◽  
pp. 121841
Author(s):  
Aleksei Kiselev ◽  
Haitao Zhang ◽  
Zuoqiang Liu
Keyword(s):  
Mechanical Properties ◽  
Asphalt Concrete ◽  
Two Phase ◽  
Phase Mixing ◽  
Porous Asphalt ◽  
Porous Asphalt Concrete

scholarly journals Mechanical Properties of Crumb Rubber and Basalt Fiber Composite Modified Porous Asphalt Concrete with Steel Slag as Aggregate

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2552
Author(s):  
Chao Chai ◽  
Yongchun Cheng ◽  
Yuwei Zhang ◽  
Bing Zhu ◽  
Hang Liu
Keyword(s):  
Mechanical Properties ◽  
Asphalt Concrete ◽  
Steel Slag ◽  
Basalt Fiber ◽  
Crumb Rubber ◽  
Modified Bitumen ◽  
Porous Asphalt ◽  
Splitting Test ◽  
Porous Asphalt Concrete ◽  
Polymer Modified Bitumen

This paper studies the mechanical properties of porous asphalt concrete with styrene-butadiene-styrene (SBS) polymer modified bitumen as the binder, steel slag as the aggregate and crumb rubber and basalt fiber as modifiers. First, the appearance, mechanics, chemical composition and high-temperature stability of steel slag were studied by some equipment. Then, three kinds of porous asphalt concrete with SBS polymer modified bitumen as binder were produced, Namely, crumb rubber modified porous asphalt concrete (CR-PAC), basalt fiber modified porous asphalt concrete (BF-PAC), and basalt fiber and crumb rubber composite modified asphalt concrete (CM-PAC). Finally, the properties of the three kinds of modified PACs were studied through the Marshall test, freeze-thaw splitting test, low-temperature splitting test, permeability test, and creep test. The results showed that the crush value and abrasion value of steel slag are 15.1% and 13.5%, respectively; it has excellent strength and abrasion. In addition, the steel slag shows a porous structure and it provides an interface basis for a better bond with bitumen. For the three PACs, the results showed that the Marshall stability, water stability, and low-temperature crack resistance of CM-PAC are all the best Furthermore, CM-PAC has better rutting resistance than two single modified PACs, based on creep test results. The CM-PAC in this study can be used as a new type of pavement material.

A STUDY ONTHEWEARINGCHARACTERISTICS OF POROUS ASPHALT CONCRETE

2000 ◽  
Vol 5 ◽  
pp. 96-102
Author(s):  
Satoshi KURODA ◽  
Yoshiteru KATO ◽  
Yasuo GUNJI
Keyword(s):  
Asphalt Concrete ◽  
Porous Asphalt ◽  
Porous Asphalt Concrete

Induction heating of electrically conductive porous asphalt concrete

2010 ◽  
Vol 24 (7) ◽  
pp. 1207-1213 ◽  
Author(s):  
Quantao Liu ◽  
Erik Schlangen ◽  
Álvaro García ◽  
Martin van de Ven
Keyword(s):  
Induction Heating ◽  
Asphalt Concrete ◽  
Electrically Conductive ◽  
Porous Asphalt ◽  
Porous Asphalt Concrete

Research on Effect of Equivalent Diameter of Voids on Sound Absorption Performance of Porous Asphalt Concrete Based on Grey Entropy Method

2020 ◽  
Vol 861 ◽  
pp. 414-420
Author(s):  
Ming Xi Liu ◽  
Jian Guang Xie ◽  
Zhan Qi Wang ◽  
Yan Ping Liu
Keyword(s):  
Asphalt Concrete ◽  
Sound Absorption ◽  
Traffic Noise ◽  
Entropy Method ◽  
Equivalent Diameter ◽  
Air Voids ◽  
Porous Asphalt ◽  
Absorption Performance ◽  
The Relationship ◽  
Porous Asphalt Concrete

The sound absorption performance of porous asphalt concrete (PAC) is inseparable from the sizes of voids, as different sizes of voids have different absorption effects on noise in different frequency bands. However, the relationship between the two is not clear. In this study, the equivalent diameter of voids was obtained by the proposed image segmentation algorithm based on the square area, then grey entropy method was used to analyze the effect of different equivalent diameter of voids on the sound absorption performance of PAC in the frequency range of traffic noise. The results show that with the increase of air voids, the peak and average sound absorption coefficient of PAC increase, the sound absorption performance of PAC is improved; and the sound absorption performance of PAC is mainly affected by the equivalent diameter of voids of 3-4mm.

scholarly journals Porous asphalt concrete: A review of design, construction, performance and maintenance

2020 ◽  
Vol 13 (6) ◽  
pp. 601-612 ◽  
Author(s):  
Jian-Shiuh Chen ◽  
Chin Hung Yang
Keyword(s):  
Asphalt Concrete ◽  
Material Selection ◽  
Winter Maintenance ◽  
Porous Asphalt ◽  
Pavement Surface ◽  
Long Run ◽  
The World ◽  
And Performance ◽  
Porous Asphalt Concrete ◽  
Design Construction

AbstractPorous asphalt concrete (PAC) is an open-graded friction course that is specifically designed to have high air void contents for removing water from the pavement surface. PAC surfaces, which include open-graded friction courses, permeable friction courses, and drainage asphalt pavements, have increasingly gained acceptance among agencies and industry in the world. PAC might be susceptible to freeze-thaw damage in cold climates and require winter maintenance practices. The life span of PAC pavements shows a large variation depending on climates, traffic volumes and loadings, design and construction practices. The objective of this paper was to review design, construction, and performance that could maximize the advantages and minimize the disadvantages associated with the use of PAC mixtures. A consolidated review of the worldwide literature on PAC applications was conducted, with attention to the use of PAC in agency practices, and specifications for PAC from the world were evaluated. Based on an analysis of the results of this review, two key features were emphasized: (1) a recommended practice for material selection and design of PAC, and (2) a recommended practice for PAC construction and maintenance. Key points include a careful assessment of the PAC drainage and an adequate asphalt content to improve the performance of the pavement surface. A proper binder content stabilized by additives such as fibers and polymers is essential to ensure sufficient film thickness that is critical to the durability of the PAC mix in the long run.

scholarly journals Investigation of Water Uptake in Porous Asphalt Concrete Using Neutron Radiography

2014 ◽  
Vol 105 (2) ◽  
pp. 431-450 ◽  
Author(s):  
Sreeyuth Lal ◽  
Lily D. Poulikakos ◽  
Marjan Sedighi Gilani ◽  
Iwan Jerjen ◽  
Peter Vontobel ◽  
...  
Keyword(s):  
Water Uptake ◽  
Asphalt Concrete ◽  
Neutron Radiography ◽  
Porous Asphalt ◽  
Porous Asphalt Concrete
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