scholarly journals The Design Method of Aggregate Gradation of GAC-20 Modified Asphalt Mixture Based on Road Performance

2018 ◽  
Vol 381 ◽  
pp. 012060
Author(s):  
Zhaohui Sun ◽  
Simeng Wang ◽  
Guangqiang Zhu
Keyword(s):  
Design Method ◽  
Asphalt Mixture ◽  
Aggregate Gradation ◽  
Modified Asphalt ◽  
Road Performance

scholarly journals Asphalt Mixture for the First Asphalt Concrete Directly Fastened Track in Korea

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Seong-Hyeok Lee ◽  
Dae-Wook Park ◽  
Hai Viet Vo ◽  
Samer Dessouky
Keyword(s):  
Asphalt Concrete ◽  
Design Method ◽  
Asphalt Mixture ◽  
Digital Camera ◽  
Aggregate Size ◽  
Fatigue Tests ◽  
Asphalt Mixtures ◽  
Maximum Aggregate Size ◽  
Aggregate Gradation ◽  
Modified Asphalt

The research has been initiated to develop the asphalt mixtures which are suitable for the surface of asphalt concrete directly fastened track (ADFT) system and evaluate the performance of the asphalt mixture. Three aggregate gradations which are upper (finer), medium, and below (coarser). The nominal maximum aggregate size of asphalt mixture was 10 mm. Asphalt mixture design was conducted at 3 percent air voids using Marshall mix design method. To make impermeable asphalt mixture surface, the laboratory permeability test was conducted for asphalt mixtures of three different aggregate gradations using asphalt mixture permeability tester. Moisture susceptibility test was conducted based on AASHTO T 283. The stripping percentage of asphalt mixtures was measured using a digital camera and analyzed based on image analysis techniques. Based on the limited research results, the finer aggregate gradation is the most suitable for asphalt mixture for ADFT system with the high TSR value and the low stripping percentage and permeable coefficient. Flow number and beam fatigue tests for finer aggregate asphalt mixture were conducted to characterize the performance of asphalt mixtures containing two modified asphalt binders: STE-10 which is styrene-butadiene-styrene (SBS) polymer and ARMA which is Crum rubber modified asphalt. The performance tests indicate that the STE-10 shows the higher rutting life and fatigue life.

Mix Design Method of the SMC Cold Temperature Modified Asphalt Mixture

2017 ◽  
Vol 744 ◽  
pp. 185-189
Author(s):  
Miao Miao Tian ◽  
Chao Yang Guo ◽  
Jin Yan ◽  
Ya Fei Li
Keyword(s):  
Design Method ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Cold Temperature ◽  
Subzero Temperature ◽  
Modified Asphalt ◽  
Harmful Emission ◽  
Long Time ◽  
Special Environment ◽  
Technology Level

The SMC cold temperature asphalt mixture consumed less energy and harmful emission compares with the traditional HMA and WMA, and it can be worked at the subzero temperature or after a long time storage, which makes the construction and maintenance of the asphalt pavement in a special environment (low temperature) and special conditions (without a hot mix station) come true. It has been widely used in Beijing, Xinjiang, Sichuan, Tibet, etc. with a satisfied performance. Highway construction and maintenance technology level of China would be positively promoted by using the SMC asphalt mixtures.

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.

scholarly journals Road performance of tourmaline/rubber powder modified asphalt mixture

2019 ◽  
Vol 304 ◽  
pp. 052129
Author(s):  
Hao Fu ◽  
Qian Chen ◽  
Zhi Song ◽  
Xudang Xiao ◽  
Zhentong Fan
Keyword(s):  
Asphalt Mixture ◽  
Rubber Powder ◽  
Modified Asphalt ◽  
Road Performance

Comparison Study on Road Performance of Modified Asphalt Mixture for Intermediate Course

2014 ◽  
Vol 941-944 ◽  
pp. 687-690 ◽  
Author(s):  
Zhao Hui Sun ◽  
Guang Qiang Zhu ◽  
Jing Ma ◽  
Qing Bin Yu ◽  
Bao Yang Yu ◽  
...  
Keyword(s):  
Asphalt Mixture ◽  
Water Stability ◽  
High Grade ◽  
Comparison Study ◽  
Excellent Performance ◽  
Highway Engineering ◽  
Northeast Region ◽  
Modified Asphalt ◽  
Road Performance ◽  
Temperature Water

High temperature, low temperature, water stability and fatigue test were done for three types of modified asphalt mixture of intermediate course used in high-grade highway engineering in Northeast region. The asphalt mixture design scheme with excellent performance suitable for application of intermediate course was selected for reference in Northeast area.

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.

Road Performance of Warm-Mix Modified Bitumen Mixture with EC120

2014 ◽  
Vol 694 ◽  
pp. 118-122
Author(s):  
Jie Xiao ◽  
Zhi Fan Mo ◽  
Hong Xin Lu ◽  
Xian Yuan Tang
Keyword(s):  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Modified Bitumen ◽  
Moisture Susceptibility ◽  
Modified Asphalt ◽  
The Road ◽  
Road Performance ◽  
The Common ◽  
Temperature Crack

A series of laboratory tests on warm-mix AC-13 dense gradation asphalt mixture with 3% EC120 were carried out by the method of identical volume. A comparative analysis of common hot asphalt mixture was performed. The results indicate that the reduction of compaction temperature of warm-mix modified bitumen mixture is 27.1°C with addition of 3% EC120. The road performances of warm-mix asphalt mixture determined by the method of identical volume satisfied the specification. Compared to the common hot asphalt mixture, the warm-mix modified asphalt mixture has excellent high temperature stability, slightly low moisture susceptibility and better low-temperature crack resistance.

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