scholarly journals Road Performance of Calcium Sulfate Whisker and Polyester Fiber Composite-Modified Asphalt Mixture

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Xiushan Wang ◽  
Bowen Dong ◽  
Junjie Wang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Calcium Sulfate ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Polyester Fiber ◽  
High Temperature Stability ◽  
Modified Asphalt ◽  
Road Performance ◽  
Calcium Sulfate Whisker

In order to better improve the practical engineering problems such as rutting, cracking, pit, and groove in highway engineering, the stability and strength characteristics of calcium sulfate whisker and polyester fiber in asphalt mixture are evaluated based on the road performance test. In this experiment, three different methods of the calcium sulfate whisker content and three different polyester fiber content were used to determine the best asphalt aggregate ratio to prepare different modified asphalt mixture samples. Its high temperature stability, water stability, and low-temperature performance were tested. The results show that the composite modifier of calcium sulfate whisker and polyester fiber can significantly improve the strength stability of asphalt mixture and make its high temperature stability reach 2900.3∼4230.7 Times/mm without reducing its low-temperature bending strength. The optimum content of calcium sulfate whisker is in the range of 2‰∼2.5‰ and polyester fiber is in the range of 2‰∼3‰. The rutting strength and Marshall stability reach the maximum.

scholarly journals Study on Laboratory Experimental Pavement Performances of SEAM Modified Asphalt Mixture

2019 ◽  
Vol 136 ◽  
pp. 03010
Author(s):  
Ma Qingna ◽  
Zhao Zhiqin ◽  
Xu Qian ◽  
Sun Feng
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Water Stability ◽  
High Temperature Stability ◽  
Modified Asphalt ◽  
The Road ◽  
Road Performance ◽  
Property Index

Adding sulphur dilution asphalt modifier SEAM to asphalt mixture is not only a modifier of asphalt mixture, but also an additive of asphalt mixture. When the modifier is added into the asphalt mixture, the road performance of the asphalt mixture can be improved. This paper studies SEAM modified asphalt mixture the Marshall property index, temperature stability, Water stability and fatigue feature in the Laboratory. On the based of the result of the experiment and analysis, SEAM can improve the high temperature stability, Water stability and fatigue feature. But the low temperature stability can’t improve.

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 Performance of Rubber Powder Modified Asphalt Mixture

2014 ◽  
Vol 599 ◽  
pp. 252-256 ◽  
Author(s):  
Yan Shuang Zhang ◽  
Quan Liang Li ◽  
Jian Zhong Dong ◽  
Qing Hu Zhang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Key Words ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Performance Study ◽  
High Temperature Stability ◽  
Rubber Powder ◽  
Modified Asphalt ◽  
Asphalt Performance

Through the asphalt performance experiment, obtains the best proportion of rubber powder. Through the contrast test of asphalt mixture, the water sensibility, high temperature stability and low temperature stability of asphalt mixture have been studied. Key words: rubber powder modified asphalt asphalt mixture performance study

Study on Road Performance of Phase-Change Temperature-Adjusting Asphalt Mixture

2011 ◽  
Vol 287-290 ◽  
pp. 978-981 ◽  
Author(s):  
Biao Ma ◽  
Jun Li ◽  
Ren Wei Liu ◽  
Jin Ma
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Phase Change ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Water Stability ◽  
High Temperature Stability ◽  
Low Temperature Cracking ◽  
Long Time ◽  
Road Performance

Mixing the composite phase change material (CPCM) to asphalt mixture is a new way to solve the worldwide problem of the low-temperature cracking and high temperature rutting of the asphalt pavement. Asphalt mixture with CPCM can remain in the ideal working temperature range for a relatively long time. This paper analyzes the influence of the contents of CPCM on its road performance by laboratory testing. The study shows that mixing CPCM to asphalt mixture had little effect to the optimal asphalt content. For CPCM prepared by polymer shape-stabilized method, the high-temperature stability and the water stability of asphalt mixture increases firstly and then decreases the low-temperature anti-cracking stability decreases firstly and then increases with the increasing of CPCM. For CPCM prepared by carrier-adsorbed packaging process, the high-temperature stability decreases, low-temperature anti-cracking stability decreases firstly and then increases, the water stability increases firstly and then decreases with increasing of CPCM. The results indicate that CPCM has significant influences on its road performance. The optimal content of CPCM is around 0.3%.

A Study of Polyurethane Rubber Composite Modified Asphalt Mixture

2014 ◽  
Vol 941-944 ◽  
pp. 324-328 ◽  
Author(s):  
Zhong Ping Yao ◽  
Meng Li ◽  
Wei Liu ◽  
Zhen Bei Chen ◽  
Rong Hui Zhang
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Damage Resistance ◽  
Modified Asphalt ◽  
Rubber Composite ◽  
Marshall Test ◽  
Composite Modification ◽  
Temperature Crack

Use polyurethane rubber composite modified asphalt.Through the Marshall test and rutting test, test of polyurethane rubber asphalt mixture high temperature stability, low temperature crack resistance and water damage resistance, verify the composite modification advantages.

Laboratory Study of Pavement Performance of Basalt Fiber-Modified Asphalt Mixture

2011 ◽  
Vol 266 ◽  
pp. 175-179 ◽  
Author(s):  
Yuan Xun Zheng ◽  
Ying Chun Cai ◽  
Ya Min Zhang
Keyword(s):  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Temperature Stability ◽  
Asphalt Mixtures ◽  
Polyester Fiber ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Modified Asphalt ◽  
And Control ◽  
Temperature Crack

In order to discuss the effect of the basalt fiber on reinforcing pavement performance of asphalt mixtures, the optimum dosage of asphalt and fibers were studied by the method of Marshall test and rut test firstly. Then pavement performances of basalt fiber-modified asphalt mixtures were investigated through tests of high temperature stability, water stability and low temperature crack resistance, and compared with that of polyester fiber, xylogen fiber and control mixture. The testing results showed that the pavement performance of fiber-modified asphalt mixture are improved and optimized comparing with control asphalt mixture, and the performance of basalt fiber-modified asphalt mixture with best composition were excelled than those of polyester fiber and xylogen fiber.

Impact of Rheological Properties of Fiber Asphalt Mortar on Mixture Road Performance

2013 ◽  
Vol 734-737 ◽  
pp. 2287-2291 ◽  
Author(s):  
De Dong Guo
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Rheological Properties ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Fiber Content ◽  
High Temperature Stability ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
Asphalt Mortar

Fiber asphalt concrete has been more and more widely used in highway construction. For analyzing high and low temperature performance of fiber asphalt mixture, rheological properties of fiber asphalt mortar were studied through indoor test. Impact of Rheological properties of the fiber asphalt mortar on high temperature and low temperature properties of asphalt mixture was analyzed. Results showed that the larger fiber content was, the better performance of asphalt mixture's high temperature stability, fiber asphalt mortar rut factor and rutting tests results of asphalt mixture were linear correlation, reflecting the high temperature performance of asphalt mixture; With the increase of fiber content, variation of stiffness modulus, creep rate indicators and mixture low temperature performance was consistent, and rheological properties of fiber asphalt mortar could characterize low temperature performance of asphalt mixture.

The Analyze Study of Compacting Temperature and Road Performance of Warm Mix Asphalt Mixture (LEADCAP)

2013 ◽  
Vol 361-363 ◽  
pp. 1681-1688 ◽  
Author(s):  
Hai Sheng Zhao ◽  
Wei Chen ◽  
Xiao Yan Wang
Keyword(s):  
Low Temperature ◽  
Dynamic Modulus ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Organic Additive ◽  
Bending Test ◽  
High Temperature Stability ◽  
The Road ◽  
Indirect Tension ◽  
Road Performance

This paper used one kind of organic additive LEADCAP to reduce the compacting temperature of SBS WMA mixture, and compared the WMA mixture compacted by superpave gyratory compactor (SGC) with HMA mixture to determine the compacting temperature of WMA mixture. Rutting test, low temperature bending test, freeze-thaw indirect tension test, Hamburg Wheel-Track test and dynamic modulus were carried out to evaluate the road performance of WMA mixed with LEASCAP. The test result showed that the WMA mixed with LEADCAP had well performed high temperature stability, low temperature stability, water stability, rutting cracking resistance, and high dynamic modulus, the compacting temperature were 127 °C, and affectively reduced the compacting temperature of SBS WMA mixture.

Natural Mineral Fiber Improved Asphalt Mixture Performance

2014 ◽  
Vol 638-640 ◽  
pp. 1166-1170 ◽  
Author(s):  
Meng Hui Hao ◽  
Pei Wen Hao
Keyword(s):  
Low Temperature ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Temperature Stability ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Natural Mineral ◽  
Mineral Fiber ◽  
Modified Asphalt

Natural mineral fiber with good performances of mechanical properties and environmentally friendly, pollution-free especially have gradually aroused extensive concern. In order to improve the quality of asphalt pavement, explore the applicability of nature basalt fiber in enhanced asphalt mixture performance, this paper investigates two typical asphalt mixtures and contrastive studies pavement performance of asphalt mixture by high temperature stability, water stability, low temperature anti-cracking and fatigue performance between basalt fiber modified asphalt mixture and base asphalt mixture, and then study the basic principle of fiber reinforcing asphalt mixture. The research show that basalt fiber modified asphalt mixture has a better pavement performance than base asphalt mixture, its dynamic stability is 1.6 times than base asphalt mixture, low temperature anti-cracking performance increased by more 25% and fatigue life is more 2 times than base asphalt mixture. And the basalt fiber can be used in the road engineering as an additive material that enhances the comprehensive performance of asphalt pavement.

Effect of Anti-Rut Agents on Properties of Asphalt Mixture

2014 ◽  
Vol 599 ◽  
pp. 110-114 ◽  
Author(s):  
Yan Hua Wang ◽  
Kuang Yi Liu ◽  
Hai Xia Zhang ◽  
Shan Li
Keyword(s):  
High Temperature ◽  
Fatigue Life ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Damage Resistance ◽  
Damage Stability ◽  
Low Temperature Cracking ◽  
Water Damage

Anti-rut agent, named RPS-3000,was added into AC-25 asphalt mixture and its effects on high temperature stability, low temperature cracking resistance, water damage resistance and fatigue life were investigated in this paper. Results showed that the high temperature stability and low temperature crack resistance of the asphalt mixture improved significantly, the water damage stability increase slightly due to the introduction of anti-rut agents. Besides, the result of fatigue life test presented that excess amount of anti-rut agent may lead a deterioration of fatigue life. Keywords: Anti-rut agent; High temperature stability; Asphalt mixture

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