Experimental Investigation on Performance of Fiber Asphalt Mixture

2011 ◽  
Vol 374-377 ◽  
pp. 1396-1399
Author(s):  
Ju Hong Han ◽  
Jin Jun Guo ◽  
Zhong Liu
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Pavement Performance ◽  
Mixture Ratio ◽  
Modified Asphalt ◽  
Positive Effects ◽  
Road Performance ◽  
Sbs Modified Asphalt ◽  
Comprehensive Indicator

The paper investigates positive effects of three kinds of fibers on the performance of asphalt concrete mixture, which include mineral fiber (Fiberand®), lignin fiber and polyacrylonitrile (Dolanit@AS). The contrast experiments of AC-13 SBS modified asphalt mixture added fibers were carried out. The results reveal that the pavement performance can be improved remarkably if appropriate fibers are added into the asphalt mixture. The method of determining optimum mixture ratio was proposed on the basis of road performance of asphalt concrete. It is more reasonable to adopt comprehensive indicator containing stability and dynamic stability in determination of the optimum mixture ratio of asphalt concrete.

Application Study on High Modulus Asphalt Concrete in Bridge Pavement

2011 ◽  
Vol 243-249 ◽  
pp. 4244-4247 ◽  
Author(s):  
Yun Liang Li ◽  
Yi Qiu Tan ◽  
Liang Meng
Keyword(s):  
Asphalt Concrete ◽  
Oil Field ◽  
Pavement Performance ◽  
High Modulus ◽  
Practical Application ◽  
Application Study ◽  
Damage Resistance ◽  
Modified Asphalt ◽  
Practical Project ◽  
Sbs Modified Asphalt

A type of high modulus asphalt was prepared by mixing modifier into SBS modified asphalt and used for confecting HMAC-16 high modulus asphalt concrete with finished product of modified asphalt from Liaohe oil field. This paper investigates pavement performance of high modulus asphalt concrete and its practical application in bridge pavement. Results obtained by application in practical project show that the high modulus asphalt concrete is provided with outstanding high-and-low temperature performance and water damage resistance which are suitable for bridge pavement.

Interfacial Property of the Asphalt Concrete Pavement with Bonifiber Reinforced Overlayer

2011 ◽  
Vol 374-377 ◽  
pp. 1511-1514
Author(s):  
Yang Guo ◽  
Ying Hua Zhao
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Primary Objective ◽  
Interfacial Property ◽  
Modified Asphalt ◽  
Interface Property ◽  
The Road ◽  
Shear Property ◽  
Road Performance ◽  
Pavement Structures

Fiber reinforcement as an available attempt has been proved to be effective in improving the toughness of asphalt concrete and is becoming a new method for highway maintenance. When fiber modified asphalt mixture is used as the surface course of a reconstructive pavement, the interface bonding property between top and lower layers seems to become a crucial factor in the road performance of the long lasting pavement. The primary objective of the research is to study the influence of fiber inclusions on the interfacial shear property of the pavement. With the purpose of discussing the shear strength of the interface between Bonifiber modified asphalt mixture top layer and the normal asphalt mixture layer，the laboratory shear test was developed on MTS-810. Four kinds of double-layered cylindrical specimens were made to simulate the different pavement structures. Test results show that the overlaying with Bonifiber modified asphalt mixture improves not only the general road performance but also the interface property. It is concluded that, the interface property of pavement with fiber reinforced top layer behaves much better than that with normal asphalt concrete one.

Experimental Research on Road Performance of Natural Asphalt Modified Asphalt Mixtures

2011 ◽  
Vol 287-290 ◽  
pp. 762-766
Author(s):  
Liang Fan ◽  
Xiao Jin Song ◽  
Yu Zhen Zhang
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Cost Effective ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Pavement Performance ◽  
Modified Asphalt ◽  
Modification Technique ◽  
Road Performance ◽  
Natural Asphalt

This report mainly evaluated the pavement performance of natural asphalt from Albania. Firstly, base asphalts were processed with natural asphalt by “wet method” modification technique to obtain modified asphalt; and mixture are produced with these modified asphalt binders, and then high temperature performance and moisture stability properties are evaluated by some standard methods. Analysis shows that this natural asphalt can remarkably improve the high temperature and moisture stabilities of asphalt mixture, and own cost-effective advantage.

scholarly journals Test of AC - 20 asphalt mixture ratio on the runway of Da Lian Airport

2021 ◽  
Vol 293 ◽  
pp. 02002
Author(s):  
Shuaituan Tian ◽  
Lei Guo ◽  
Jixiang Su ◽  
Kunyang Zhao
Keyword(s):  
Service Life ◽  
Bond Strength ◽  
Raw Materials ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Pavement Performance ◽  
Optimum Ratio ◽  
Mixture Ratio ◽  
Modified Asphalt ◽  
Design Optimum

After years of use, there’s oil loss on the asphalt pavement. the bond strength of aggregate decreases. Loose threshing is serious. In order to improve the pavement performance, Extend the service life of pavement, Improve the safety of aircraft operation. we test the AC-20 modified asphalt mixture on the runway of Da Lian Airport from many factors, including raw materials, admixtures, gradation design, optimum ratio of oil to stone, then we find the best ways to resolve it.

scholarly journals Road Performance and Application Analysis of Ultra-Thin Asphalt Coating Mixture with High Elastic Modification

2021 ◽  
Vol 276 ◽  
pp. 02034
Author(s):  
Jinfen Wei ◽  
Xundong Yang ◽  
Qiwei Zhou ◽  
Huoming Wang ◽  
Yunfei Fang
Keyword(s):  
Low Temperature ◽  
Asphalt Mixture ◽  
Fatigue Properties ◽  
Water Stability ◽  
Modified Asphalt ◽  
High Elasticity ◽  
Road Performance ◽  
Sbs Modified Asphalt ◽  
Temperature Water ◽  
Temperature Crack

A kind of composite modified asphalt with high elasticity was prepared by SBS and high elasticity agent, and the asphalt mixture with easy compactness was applied. The high temperature, low temperature, water stability and fatigue properties of the mixture were evaluated by laboratory tests. The results show that the optimum content of high elasticity agent is about 6% for SBS modified asphalt. The pavement performance of the high-elasticity modified asphalt compacting mixture was improved to a certain extent. Compared with SBS modified asphalt SMA-13, the dynamic stability was increased by 13.5%. The water stability, low temperature crack resistance and fatigue resistance increased by 10.4%, 59.3% and 173%.

Experimental Study on Pavement Performance of SEBS Modified Asphalt Mixture

2010 ◽  
Vol 168-170 ◽  
pp. 906-911
Author(s):  
Chuan Feng Zheng ◽  
Lei Wang ◽  
Da Jun Zhao
Keyword(s):  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Pavement Performance ◽  
Moisture Susceptibility ◽  
Modified Asphalt ◽  
Modified Asphalt Binder ◽  
Beam Bending ◽  
And Performance ◽  
Wheel Tracking ◽  
Sbs Modified Asphalt

pavement performance of SEBS modified asphalt mixture are analyzed. Dynamic shear rhometer(DSR) experiments were performed to evaluate the rheology properties of SEBS modified asphalt binder and performance of SEBS modified asphalt mixture was evaluated based on laboratory experiments, experiments included: wheel tracking, moisture susceptibility, low-temperature beam bending and fatigue. The results shows that the rheology properties of SEBS modified asphalt binder are more ideal than SBS modified asphalt binder on anti-fatigue effect. Tensile stress ratio(TSR) of SEBS modified asphalt mixture increases 5.0%, tensile strength increases 6.1% and tensile strain increases 19.8%, though the dynamic stability(DS) decreases 3.1%, the fatigue life-span increases significantly compared with SBS modified asphalt mixture. It means that pavement performance of SEBS modified asphalt mixture is better than SBS modified asphalt mixture, and it is more applicable to be utilized in highway engineerings and some special engineerings such as bridge deck pavement that need anti-fatigue performance.

Analysis on the Impact of the Type and Content of SBS on the Performance of the Modified Asphalt Mixture

2014 ◽  
Vol 919-921 ◽  
pp. 1079-1084 ◽  
Author(s):  
Sen Han ◽  
Dong Yu Niu ◽  
Ya Min Liu ◽  
De Chen ◽  
Deng Wu Liu
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Moisture Susceptibility ◽  
Modified Asphalt ◽  
Cracking Performance ◽  
Sbs Modified Asphalt

The types and contents of styrene-butadiene-styrene (SBS) modifier are two important factors of SBS modified asphalt mixtures. Nowadays, SBS are extensively utilized to modified asphalt in order to improve the performance of the flexible pavement. The objective of this study is to determine a best selection of types and contents of SBS modifier, which can improve high-temperature stability; low-temperature anti-cracking performance and moisture susceptibility of SBS modified asphalt mixture. The mixtures with four types of SBS (Linear A, Linear B, Star A, Star B) and the different contents of each type SBS including Linear SBS of 0%, 3%, 4%, 4.5% and Star SBS of 0%, 3%, 3.5%, 4%, were evaluated for the pavement performance of them under laboratory conditions. Wheel tracking test, beam bending test and freeze-thaw tensile strength test were chosen and carried out to determine high-temperature stability, low-temperature anti-cracking performance and the moisture susceptibility respectively. The laboratory testing results indicate that Star SBS show the more effective effects than Linear SBS to improve the high-temperature stability, low-temperature anti-cracking performance and moisture susceptibility of SBS modified asphalt mixture, and the optimum content of SBS can also play a key role the improvement of the pavement performance.

Study on Influences of Warm-Mix Agent on SBS Modified Asphalt Mixture

2013 ◽  
Vol 361-363 ◽  
pp. 1805-1810
Author(s):  
Xiao Yan Song ◽  
Yuan Yuan Li ◽  
Qiang Hua Ji
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
Water Stability ◽  
Mixing Ratio ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Sbs Modified Asphalt ◽  
Factor G

Through conventional and unconventional tests, the influences of self-developed warm-mix agent on the performances of SBS modified asphalt are studied. The results show that the warm-mix agent has great influences on the ductility and aging quality changes of SBS modified asphalt; and the warm-mix agent can improve the asphalt rutting factor G*/sinδ and fatigue factor G* • sinδ. The mixing ratio of the warm-mix SBS modified asphalt mixture is designed based on GTM method and the pavement performance is compared and verified. The results show that: in terms of high temperature performance, the warm-mix asphalt mixture is superior to the corresponding hot-mix asphalt mixture; and in terms of low temperature performance and water stability, the former is equivalent to the latter.

scholarly journals Test of SMA - 16 asphalt mixture ratio on the runway of Da Lian Airport

2021 ◽  
Vol 293 ◽  
pp. 02038
Author(s):  
Shuaituan Tian ◽  
Kunyang Zhao ◽  
Lei Guo ◽  
Hanxun Wang
Keyword(s):  
Service Life ◽  
Bond Strength ◽  
Raw Materials ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Pavement Performance ◽  
Optimum Ratio ◽  
Mixture Ratio ◽  
Modified Asphalt ◽  
Design Optimum

After years of use, there’s oil loss on the asphalt pavement. the bond strength of aggregate decreases. Loose threshing is serious. In order to improve the pavement performance, Extend the service life of pavement , Improve the safety of aircraft operation. we test the SMA-16 modified asphalt mixture on the runway of Da Lian Airport from many factors, including raw materials, admixtures, gradation design, optimum ratio of oil to stone, then we find the best ways to resolve it.

A Study on the Test of Rubber Crumb Modified Asphalt Mixture Road Performance

2012 ◽  
Vol 503-504 ◽  
pp. 270-275
Author(s):  
Xiao Chu Wang ◽  
Ying Li ◽  
Lei Fu ◽  
Yi Peng Wang
Keyword(s):  
Asphalt Mixture ◽  
Engineering Application ◽  
Pavement Performance ◽  
Rubber Crumb ◽  
Modified Asphalt ◽  
Test Road ◽  
Road Performance

The article is based on the rubber crumb modified asphalt’s fundamental characteristics, paving a test road. Through test and compacted study of indoor pavement performance and technical index on-site, summarizing relevant experience, providing reference for similar engineering application

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