Evaluation of cooling effect and pavement performance for thermochromic material modified asphalt mixtures under solar radiation

2020 ◽  
Vol 261 ◽  
pp. 120589
Author(s):  
Qiang Li ◽  
Tingyu Hu ◽  
Sang Luo ◽  
Lei Gao ◽  
Chaohui Wang ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Asphalt Mixtures ◽  
Cooling Effect ◽  
Pavement Performance ◽  
Modified Asphalt ◽  
Thermochromic Material

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.

scholarly journals Special Issue on Nano-Modified Asphalt Binders and Mixtures to Enhance Pavement Performance

2020 ◽  
Vol 10 (12) ◽  
pp. 4187
Author(s):  
Luís Picado-Santos ◽  
João Crucho
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Pavement Performance ◽  
Special Issue ◽  
Modified Asphalt ◽  
Pavement Layers

This Special Issue is dedicated to the use of nanomaterials for the modification of asphalt binders to support the analysis of the relevant properties and to determine if the modification indicated a more efficient use of asphalt mixtures’ fabrication or their modification in the context of asphalt mixtures’ fabrication and the improvement (or lack thereof) of these last ones to constitute effective asphalt pavement layers [...]

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.

Laboratory Evaluation for Pavement Performance of Rock Modified Asphalt and its Mixture

2014 ◽  
Vol 488-489 ◽  
pp. 558-560
Author(s):  
Xing Song Cao ◽  
Guo Qi Tang ◽  
Shi Xiong Liu ◽  
Xio Qiang Yang ◽  
Bo Chen
Keyword(s):  
Great Influence ◽  
Temperature Stability ◽  
Asphalt Mixtures ◽  
Pavement Performance ◽  
Laboratory Evaluation ◽  
High Temperature Stability ◽  
Modified Asphalt ◽  
The Matrix ◽  
Cracking Performance ◽  
Asphalt Modification

The compatibility of rock asphalt modification agent and matrix asphalt was excellent, while different contents of the rock asphalt had great influence on the mechanics properties of mixture. Based on the aggregate grade of the AC-20 mixture, the mechanical properties of the matrix asphalt mixtures and the rock asphalt mixtures with different quantities of rock asphalt were studied by laboratory tests, including the high-temperature stability, low-temperature anti-cracking performance and water stability. This research is to give reference for the proper rock asphalt quantity of the mixture.

scholarly journals Mechanical Characteristics of Graphene Nanoplatelets-Modified Asphalt Mixes: A Comparison with Polymer- and Not-Modified Asphalt Mixes

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2434
Author(s):  
Laura Moretti ◽  
Nico Fabrizi ◽  
Nicola Fiore ◽  
Antonio D’Andrea
Keyword(s):  
Fatigue Resistance ◽  
Graphene Nanoplatelets ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Asphalt Mixes ◽  
Modified Asphalt ◽  
Bituminous Mixtures ◽  
Water Sensitivity ◽  
Polymer Modified Asphalt ◽  
Mechanical Performances

In recent years, nanotechnology has sparked an interest in nanomodification of bituminous materials to increase the viscosity of asphalt binders and improves the rutting and fatigue resistance of asphalt mixtures. This paper presents the experimental results of laboratory tests on bituminous mixtures laid on a 1052 m-long test section built in Rome, Italy. Four asphalt mixtures for wearing and binder layer were considered: two polymer modified asphalt concretes (the former modified with the additive Superplast and the latter modified with styrene–butadiene–styrene), a “hard” graphene nanoplatelets (GNPs) modified asphalt concrete and a not-modified mixture. The indirect tensile strength, water sensitivity, stiffness modulus, and fatigue resistance of the mixtures were tested and compared. A statistical analysis based on the results has shown that the mixtures with GNPs have higher mechanical performances than the others: GNP could significantly improve the tested mechanical performances; further studies will be carried out to investigate its effect on rutting and skid resistance.

Investigation on the piezoresistive response of carbon fiber-graphite modified asphalt mixtures

2021 ◽  
Vol 301 ◽  
pp. 124140
Author(s):  
Liyuan Liu ◽  
Xiao Zhang ◽  
Lifei Xu ◽  
Hengji Zhang ◽  
Zhisheng Liu
Keyword(s):  
Carbon Fiber ◽  
Asphalt Mixtures ◽  
Modified Asphalt

Research Progress on Aging of Polymer Modified Asphalt

2011 ◽  
Vol 71-78 ◽  
pp. 5038-5041
Author(s):  
Chang Qing Fang ◽  
Min Zhang ◽  
Jing Bo Hu ◽  
Ying Zhang ◽  
Rui En Yu
Keyword(s):  
Asphalt Pavement ◽  
Present Situation ◽  
Research Progress ◽  
Pavement Performance ◽  
Modified Asphalt ◽  
Aging Mechanism ◽  
Characterization Techniques ◽  
Aging Properties ◽  
Polymer Modified Asphalt ◽  
At Home

Asphalt aging is inevitable to the asphalt pavement performance, which will lead asphalt to hardening gradually and becoming brittle. Therefore, aging progress shortens the life of asphalt, but the study on polymer asphalt improves the phenomenon. The present situation on aging of polymer modified asphalt is summarized and the aging mechanism of modified asphalts is analyzed in the paper. Otherwise, the research progress at home and abroad on the aging properties of modified asphalt is introduced by a series of characterization techniques, which include mechanics technique, rheology technique, FTIR, GPC and so on

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