Study on Properties and Pavement Performance of Anti-Flaming and Warm-Mix Asphalt

2011 ◽  
Vol 71-78 ◽  
pp. 803-808
Author(s):  
Zhao Yi He ◽  
Yang Cheng Huang ◽  
Gang Huang
Keyword(s):  
Orthogonal Experiment ◽  
Asphalt Mixture ◽  
Fire Retardant ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
Stability Characteristic ◽  
Temperature Property ◽  
High Temperature Property ◽  
Property Loss ◽  
Low Temperature Property

In order to solve the problems of environmental contamination, large resource consuming and inflammability of asphalt mixture, this research chooses warm-mix agent and fire retardant to double modify the asphalt. After obtain the method to produce the anti-flaming and warm-mix asphalt through orthogonal experiment, its road property and anti-flaming property are valued. According to the experiment result, under the condition of cooling down 30°C of the mix temperature, the modified anti-flaming and warm-mix asphalt can increase the high temperature property of the asphalt mixture, but decrease the low temperature property and water stability characteristic of it. This asphalt has excellent anti-flaming characteristic, so it can decrease the property loss after being burnt.

Study on Properties and Pavement Performance of Anti-Flaming and Warm-Mix SBS Modified Asphalt

2011 ◽  
Vol 97-98 ◽  
pp. 367-372 ◽  
Author(s):  
Yang Cheng Huang ◽  
Zhao Yi He
Keyword(s):  
Orthogonal Experiment ◽  
Asphalt Mixture ◽  
Fire Retardant ◽  
Temperature Property ◽  
Modified Asphalt ◽  
Water Sensitivity ◽  
Property Loss ◽  
Lower Temperature ◽  
Sbs Modified Asphalt ◽  
Low Temperature Property

In order to solve problems such as environmental contamination, large resource consuming, and the inflammability of present asphalt mixture, a warm-mix agent was chosen and fire retardant was added to asphalt to modify its characteristics. The anti-flaming and warm-mix asphalt has been produced in the orthogonal experiment, and its road property and anti-flaming property lived up to expectation. The experiment shows that under the condition of a lower temperature (15-20°C lower than the the mix temperature), the rutting resistance of the anti-flaming and warm-mix SBS modified asphalt , but its low temperature property and water sensitivity decreased. This asphalt has excellent anti-flaming characteristic, and thus it can decrease the property loss in case of fire.

Research on Application of Warm Mix Asphalt Technology in Hot In-Place Recycled Engineering

2013 ◽  
Vol 361-363 ◽  
pp. 1655-1658
Author(s):  
Xiao Li Li ◽  
Qing Zhou Wang ◽  
Shu Yan Liu
Keyword(s):  
Asphalt Mixture ◽  
Temperature Stability ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Recycled Asphalt ◽  
Marshall Test ◽  
Recycling Technology ◽  
Research On Application

Because of the heating limitation of old pavement and the restriction of climate, the quality of hot in-place recycled pavement was different to control. The warm m,ix asphalt technology was introduced to improve the heterogeneity and compactness of the hot in-place recycled pavement and decrease its construction temperature. The compaction characteristics of warm in-place recycled asphalt mixture were analyzed and its molding temperature was determined through the Marshall test. The pavement performance of warm in-place recycled asphalt mixture was analyzed whose results indicated that the introduction of warm mix asphalt technology was able to improve the compactness, the high temperature stability and water stability of hot in-place recycled asphalt mixture and reduce the influence of environment over its construction quality. A warm in-place recycled engineering of Shian expressway was introduced to verify the feasibility of warm in-place recycling technology which demonstrated that the warm in-place recycling technology was able to improve the heterogeneity and compaction quality of the recycled pavement and weaken the environmental pollution.

Revised Penetration Method Based on Evaluate High Temperature Property of SBS Modified Asphalt

2017 ◽  
Vol 902 ◽  
pp. 3-8
Author(s):  
Sen Han ◽  
Pei Sun ◽  
Ya Min Liu ◽  
Wei Li
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Property ◽  
Modified Asphalt ◽  
Specification Method ◽  
Different Temperatures ◽  
High Temperature Property ◽  
The Difference ◽  
Sbs Modified Asphalt ◽  
Temperature Susceptibility

In order to achieve the penetration method which could reflect the high temperature property of SBS modified asphalt, the paper presented the penetration test of SBS modified asphalt with different types and dosages of SBS modifier at three kinds of penetration weight and four different temperatures. Meanwhile, the high temperature performance of the SBS modified asphalt mixture was studied. It was found that penetration measured under current specification method (25oC, 100g, 5s) could not identify the difference of viscosity and high temperature property of different SBS modified asphalt. When the test conditions are revised to “penetration weight of 150 g, test temperature of 30oC, penetration time of 5s”, the penetration of different SBS modified asphalt measured by revised method could be used to evaluate the temperature susceptibility of SBS modified asphalt accurately and are closely related to the dynamic stability of mixture.

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.

Comparative Analysis on Hot and Warm Mix Asphalt Pavement Performance

2012 ◽  
Vol 204-208 ◽  
pp. 1834-1842
Author(s):  
Heng Sun
Keyword(s):  
Asphalt Mixture ◽  
Fatigue Property ◽  
High Energy ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Pavement Performance ◽  
Environment Friendly ◽  
Low Emission ◽  
New Type ◽  
Temperature Crack

Warm mix asphalt is a new type of environment-friendly pavement material with high energy-saving and low emission and it has been attracted a number of attentions to its pavement performance. In this paper, LRT, a viscosity and resistance reducing agent for asphalt, was selected as the warm mix agent to add into SMA-13 asphalt mixture. The high temperature and water stability, low temperature crack resistance and fatigue property of both hot and warm mix SMA-13 asphalt mixtures were evaluated, and various aspects of pavement performance of both materials were comparatively analyzed.

Investigation on Properties of Granite Asphalt Mixtures Prepared Using Fine Recycled Concrete Aggregate

2011 ◽  
Vol 211-212 ◽  
pp. 1066-1071 ◽  
Author(s):  
Yi Han Sun ◽  
Shao Peng Wu ◽  
Ji Qing Zhu ◽  
Jin Jun Zhong
Keyword(s):  
High Temperature ◽  
Fatigue Property ◽  
Asphalt Mixtures ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Temperature Property ◽  
High Temperature Property ◽  
Moisture Stability ◽  
Low Temperature Property

In order to improve the performance of granite asphalt mixtures, as well as make full use of waste concrete, the AC-25 asphalt mixtures were prepared using fine recycled concrete aggregate and coarse granite aggregate. The moisture stability, high-temperature property, low-temperature property and fatigue property of asphalt mixtures were investigated. Results indicate that fine recycled concrete aggregate (RCA) improves the moisture stability and low-temperature property of granite asphalt mixtures which can meet the requirements of China’s Technical Specification for Construction of Highway Asphalt Pavements (JTG F40-2004) and even are better than those of traditional limestone asphalt mixtures. Meanwhile, fine RCA makes the advantage of granite asphalt mixtures in high-temperature property more distinct with good fatigue property.

Influence of Graduation on Road Performance of Fibers-Reinforced Asphalt Pavement

2013 ◽  
Vol 753-755 ◽  
pp. 754-757
Author(s):  
Feng Zhu ◽  
De Dong Guo
Keyword(s):  
Optimization Design ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Maximum Aggregate Size ◽  
Temperature Property ◽  
The Road ◽  
Split Test ◽  
High Temperature Property ◽  
Road Performance ◽  
Residual Stability

Rutting test, residual stability test and freeze-thaw split test were used to measure the properties of asphalt mixture with different graduation and same mixing amount of fibers, the results were analyzed to obtain the influence of graduation types in the road performance of fiber-reinforced asphalt mixture. The results showed as follows: fibers could obvious improve the high temperature property and water stability of asphalt mixture; the graduation types have visible impact on the improvement of all properties of fibers-reinforced asphalt mixture; SMA-13 has the greatest influence in improving the performance of fibers-reinforced mixture; the improving effect of dense graduation AC mixture will gradually decrease when the nominal maximum aggregate size was becoming bigger; graduation optimization design should be used in mix design of fibers-reinforced mixture to enhance its road performance.

Research on Pavement Performance with Warm Mix Asphalt Concrete

2011 ◽  
Vol 418-420 ◽  
pp. 147-152 ◽  
Author(s):  
Yan Peng Lin ◽  
Bin Li
Keyword(s):  
Comparative Analysis ◽  
High Temperature ◽  
Epoxy Resin ◽  
Asphalt Concrete ◽  
Softening Point ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
High Temperature Stability

Using SBR and epoxy to modified warm-mix asphalt, the penetrability, ductility, softening point of bitumen at different aging times are tested, the comparative analysis of the modified effects of two modified agents to the asphalt mixture is made; Construction temperature of asphalt is determined by using temperature - porosity curve; The results reflect epoxy resin and SBR can improve the high temperature stability and anti moisture infringement capacity, so propose to use warm mix asphalt concrete for the top layer except in special sections layer.

Study on Pavement Performance of Warm Mix Asphalt with DAT

2014 ◽  
Vol 709 ◽  
pp. 354-357
Author(s):  
Kun Wang ◽  
Xiang Qu
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Warm Mix Asphalt ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Molding Temperature ◽  
The Road ◽  
The Difference ◽  
The Impact

To study the difference of pavement performance between DAT warm-mix asphalt and hot-mix asphalt, the impact on the SBS asphalt with 10% DAT was studied first. Then AC-5 asphalt mixture was made the Marshall specimens according to the indoor mixing and molding temperature. Analyze the road performance between warm mix asphalt and hot mix asphalt. The experiment results show that the SBS asphalt with DAT has small difference to the original. The DAT warm-mix asphalt has poor water stability and low-temperature stability but good high-temperature stability than the hot mix asphalt when the indoor mixing and molding temperature has 20°C reduction. So DAT warm-mix asphalt can achieve the purpose of energy saving.

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