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.

Study on Pavement Performance of Reclaimed Asphalt Mixture

2011 ◽  
Vol 204-210 ◽  
pp. 2075-2078
Author(s):  
Hao Li ◽  
Rui Zhou ◽  
Xuan Cang Wang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Pavement Performance ◽  
High Temperature Stability ◽  
Reclaimed Asphalt ◽  
Content Selection ◽  
Temperature Performance ◽  
Splitting Test ◽  
Low Temperature Performance

In order to improve the pavement performance of reclaimed asphalt mixture, using Marshall test, rutting test, splitting test and long-term aging test, taking stability, dynamic stability, fatigue strength, stiffness modulus, and freeze-thaw splitting tension strength as the target, the influence law of old asphalt mixture content and regenerant content on pavement performance of reclaimed asphalt mixture is systematically studied. The results show that: the proportion of old asphalt mixture has no influence on high temperature performance of reclaimed asphalt mixture. With the proportion of old mixture increases, the optimum asphalt-aggregate ratio, low temperature performance, water stability, and anti-aging property of reclaimed asphalt mixture decrease. Addition of regenerant improves the low temperature performance of reclaimed asphalt mixture, and reduces the strength and high temperature stability of reclaimed asphalt mixture. Research results have great guiding significance for old asphalt mixture content selection, regenerant content selection and improving pavement performance of reclaimed asphalt mixture.

Improving on Road Asphalt Mixture High Temperature Performance Analysis

2011 ◽  
Vol 374-377 ◽  
pp. 1347-1350
Author(s):  
Feng Chun Zhang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Road Asphalt ◽  
The Road ◽  
Temperature Performance ◽  
Important Significance ◽  
Temperature Crack

according to the road use functions, the article for asphalt mixture of high temperature stability, the low temperature crack performance is analyzed, the results for further study on the asphalt mixture has important significance.

Applied Research of the Modifying Agent of Rubber Plastic Composite (MaR) in Asphalt Mixture

2013 ◽  
Vol 477-478 ◽  
pp. 1175-1178
Author(s):  
Ling Zou ◽  
Jing Wei Ne ◽  
Weng Gang Zhang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Bending Test ◽  
Water Stability ◽  
Modified Asphalt ◽  
Modifying Agent ◽  
Temperature Performance ◽  
Splitting Test ◽  
Low Temperature Performance

70# and 90# matrix asphalt mixture with MaR were studied through dynamic modulus test, rutting test, freeze-thaw splitting test, bending test to study the applicability of the Modifying agent of rubber plastic compound (MaR) in matrix asphalt mixture.Test results were Compared with SBSI-C modified asphalt mixture.The results indicate that: high-temperature stability of MaR+70# asphalt mixture is as well as SBSI-C modified asphalt mixture,and is bettere than MaR+90# asphalt mixture; water stability of MaR+90# asphalt mixture is bettere than SBSI-C modified asphalt mixture and MaR+70# asphalt mixture; low temperature performance of MaR+90# asphalt mixture is bettere than MaR+70# asphalt mixture, but is worse than modified asphalt mixture SBSI-C ; MaR+70# asphalt mixture can be first used in area of resisting high temperature and rutting, MaR+90# asphalt mixture can be used if the water stability performance and low temperature performance are considered.

RAP Percentage and Warm Mix Additive Influence on Regenerated Asphalt Mixture Performance

2012 ◽  
Vol 251 ◽  
pp. 436-441 ◽  
Author(s):  
Wei Liu
Keyword(s):  
Adverse Effect ◽  
High Temperature ◽  
Low Temperature ◽  
Adverse Effects ◽  
Production Process ◽  
Asphalt Mixture ◽  
Economical Efficiency ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
Additive Influence

The warm mix regeneration technology has prominent economical efficiency that can not only reduce the secondary aging of new asphalt and old asphalt in RAP materials during the production process, but also improve the use proportion of RAP materials. As for the increase of RAP dosage and the warm mix additive added to influence the plant regenerated asphalt mixture performance, this paper adopts two kinds of warm mix additive for the test and analysis of the warm mix regenerated asphalt mixture performance with 20% and 60% RAP. The results indicate that magnify the proportion of RAP percentage makes contribution to further improve high-temperature performance of the regenerated mixture, but it has adverse effects on water resistant damage performance and low-temperature performance. At the same time, adopting the warm mix additive can significantly reduce the adverse effect, so warm mix regenerated technology has better feasibility.

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.

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

Powder Oil Ratio on Stability of Asphalt Mixture in High Temperature Effect

2013 ◽  
Vol 700 ◽  
pp. 175-178
Author(s):  
Guang Pu Hao
Keyword(s):  
Shear Strength ◽  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Electron Microscope Observation ◽  
Dynamic Shear ◽  
High Temperature Stability ◽  
Asphalt Mortar ◽  
Scanning Electron ◽  
High Temperature Effect

According to the different powder oil ratio of asphalt mixture rutting experiment at high temperature, rotary experimenting machine, for different powder oil ratio dynamic shear experiment of asphalt mortar, using the scanning electron microscope observation on the microstructure of asphalt mortar, powder oil ratio on mixture high temperature stability influence. The experiment results show that: powder oil ratio is larger, stronger anti rut ability, and powder oil ratio is affected by the asphalt shear strength to influence high temperature stability of asphalt mixture, and put forward the best powder oil ratio in the range of 0.18~1.2.

Influence of Double-Doped Admixtures on Asphalt Mixture Performance

2012 ◽  
Vol 557-559 ◽  
pp. 329-333
Author(s):  
Zhong Run Zheng ◽  
Chao Zhao ◽  
Yi Feng Zhao ◽  
Pei Song
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Temperature Stability ◽  
Rutting Resistance ◽  
Splitting Test ◽  
Improvement Effect ◽  
Low Temperature Cracking ◽  
Better Than

This paper introduces an asphalt mixture that mixed with different admixtures, rutting resistance agent and lignin fiber, at the same time. Rutting test and freeze-thaw splitting test are used to analyze rutting resistance on the high temperature and low temperature cracking of the asphalt mixture. The experiments with different mixes material composition are conducted to analysis various properties of the two admixtures on the mixture, especially the high temperature stability, low temperature crack resistance and the law of improvement effect. In addition, the experiments also determine the optimal asphalt content of different type of mixtures. The results showed that the single-doped KTL rutting resistance or lignin fibers have some improvement in water temperature performance of asphalt mixture, stability improvement of double-doped admixture asphalt mixture is better than the single-doped asphalt mixture, such as KTL rutting resistance agents and lignin fibers

Analysis of Low Temperature and High Temperature Performance of Different Aggregate SMA

2013 ◽  
Vol 834-836 ◽  
pp. 252-258
Author(s):  
Peng Ren ◽  
Bo Zhang ◽  
Ya Qiao Wang ◽  
Lu Zhang ◽  
Lin Zhao
Keyword(s):  
Experimental Data ◽  
High Temperature ◽  
Low Temperature ◽  
Asphalt Mixture ◽  
Limestone Aggregate ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
Temperature Test ◽  
Better Than

Three kinds of combination schemes were designed about SMA-13 asphalt mixture. They were basalt aggregate SMA, limestone aggregate SMA, basalt and limestone aggregate SMA. Through the study of low temperature and high temperature test of three kinds of combination, the low temperature performance of basalt and limestone aggregate SMA was better than that of the basalt aggregate SMA; and the high temperature performance was in between, thus providing important experimental data for the limestones replacing basalt in SMA pavement.

scholarly journals Feasibility Evaluation of Preparing Asphalt Mixture with Low-Grade Aggregate, Rubber Asphalt and Desulphurization Gypsum Residues

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1481 ◽  
Author(s):  
Xiaoliang Zhang ◽  
Ben Zhang ◽  
Huaxin Chen ◽  
Dongliang Kuang
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Crack Resistance ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Asphalt Mixtures ◽  
Limestone Powder ◽  
Low Grade ◽  
High Temperature Stability ◽  
Temperature Crack

Road construction consumes great amounts of high-grade natural resources. Using low-grade natural rocks or some solid wastes as substitute materials is a hot topic. Considering this, the feasibility of using low-grade granite aggregate, solid waste-based filler (desulphurization gypsum residues, DGR) and binder (waste tire rubber modified asphalt, RMA) simultaneously in asphalt mixtures has been fully investigated in this research. The commonly used base asphalt and limestone powder (LP) filler were control groups. Material characteristics of raw materials mainly including micro-morphology, functional group, mineral phase, chemical composition and thermal stability were first evaluated in order to recognize them. Four asphalt mixtures (two asphalt binder and two filler) were then designed by standard Superpave method. Finally, a detailed investigation into the pavement performance of asphalt mixtures was carried out. The moisture damage resistance and low-temperature crack resistance were detected by the changing rules of stability, strength and fracture energy, and the high-temperature stability and fatigue performance were determined by wheel tracking test and indirect tensile (IDT) fatigue test, respectively. Results suggested that RMA and DGR both showed positive effects on the low-temperature crack resistance and fatigue property of the granite asphalt mixture. DGR also strengthened moisture stability. The contribution of RMA on high-temperature deformation resistance of the granite asphalt mixture was compelling. It can offset the insufficiency in high-temperature stability made by DGR. A conclusion can be made that asphalt mixture prepared with granite, DGR and RMA possesses satisfactory pavement performances.

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