scholarly journals The Optimization Design of Mixing Ratio of ARAC-13 Rubber Asphalt Mixture based on Low Temperature Crack Resistance

2019 ◽  
Vol 330 ◽  
pp. 042017
Author(s):  
Hongjuan Wu ◽  
Chengqin Chen ◽  
Wei Zhang ◽  
Rui Wang
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Optimization Design ◽  
Asphalt Mixture ◽  
Mixing Ratio ◽  
Temperature Crack

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.

Study on Pavement Performance of High Volume Reclaiming Asphalt Mixture

2014 ◽  
Vol 1081 ◽  
pp. 260-264
Author(s):  
Wei Rong Huang ◽  
Ming Tan
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Crack Resistance ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
High Volume ◽  
Pavement Performance ◽  
Water Stability ◽  
High Temperature Stability ◽  
Temperature Crack

It was based on laboratory test, in order to study on the high temperature stability, water stability and low-temperature crack resistance of AC-16 reclaiming asphalt mixture with different proportion of old material, this test takes into account 9 kinds of these asphalt mixture. The results show, with the old material blending ratio increased, the high temperature stability of asphalt mixture changed for the better, water stability and low-temperature crack resistance deteriorated. The pavement performance meet the requirements of secondary road or less, when old material content is within 70%. The research results provide reference for the application of reclaiming asphalt mixture.

Experiment Research on Performance of Low-Temperature Crack Resistance of Reinforced Asphalt Mixtures

2010 ◽  
Vol 163-167 ◽  
pp. 1128-1133 ◽  
Author(s):  
Yu Xia Zhong ◽  
Xian Li Wang ◽  
Ming Jun Liao
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Steel Fiber ◽  
Asphalt Mixture ◽  
Methyl Cellulose ◽  
Cellulose Fiber ◽  
Indirect Tension ◽  
Cold Area ◽  
Indirect Tension Test ◽  
Temperature Crack

According to the phenomenon of pavement cracking in low temperature in Northeast China, AC-13I and AK-13I of the two gradations, SBS, Methyl Cellulose fiber and steel fiber are adopted to research the mechanics parameters of reinforced asphalt mixture by Indirect tension test at minus 10 degrees centigrade entering on pavement material. Improvement of the low-temperature indirect tensile strength, stiffness and deformation capacity of asphalt mixture is analyzed and mechanisms are revealed. The results indicate that low-temperature crack resistance of steel fiber-reinforced AC-13I asphalt mixture is improved significantly, it is better for the cold area in Northeast.

Research on Crack Resistance Evaluation of Asphalt Mixture at Low Temperature

2013 ◽  
Vol 753-755 ◽  
pp. 668-672
Author(s):  
Li Jie Ma ◽  
Hai Bin Chen ◽  
Jin Yu Zhang
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Tensile Strain ◽  
Unit Volume ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Bending Test ◽  
Test Unit ◽  
Research Areas ◽  
Temperature Crack

In order to improve the low temperature evaluation, on the basis of the low temperature bending test unit volume destruction to evaluate the low temperature crack resistance of asphalt mixtures. Since the destruction can be indicators of unit volume mixture critical flexural tensile strain and flexural strength of two indicators integrated. Therefore, use it to assess the low temperature crack resistance of asphalt mixture is more scientific, the indicators has also become a new method of low-temperature research areas.

scholarly journals Effect of aging on low-temperature crack resistance and water stability of polyester fiber asphalt mixture

2021 ◽  
Author(s):  
Jinrong Wu ◽  
Zhaoxu Niu ◽  
Haiyan Chen
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Water Immersion ◽  
Asphalt Mixture ◽  
Polyester Fiber ◽  
Water Stability ◽  
Short Term ◽  
Asphalt Mortar ◽  
Temperature Crack

Abstract In order to study the influence of different aging conditions on the low-temperature crack resistance and water stability of polyester fiber asphalt mixture. Prepare standard Marshall specimens of asphalt mixture with 0.4 % polyester fiber doping, and carry out water immersion Marshall test and low temperature splitting test through indoor asphalt mortar aging, asphalt mixture short-term aging and long-term aging. The results show that: under the three aging conditions, when the water immersion and low temperature time are fixed, with the increase of the aging degree, the water stability and low temperature crack resistance of the asphalt mixture decrease. When the immersion time is 2 h, the stability of asphalt mortar aging and short-term aging decreases by 6.0% and 11.8%, respectively, compared with unaging, but the long-term aging is only 3.6% lower than the short-term aging. When the temperature is -5℃, the split tensile strength of asphalt mortar aged and short-term aged increases by 4.24% and 14.35%, respectively, compared with unaging, while long-term aging only increases 4.18% compared with short-term aging. This indicates that the short-term aging condition has the most significant effect on the water stability and low-temperature crack resistance of polyester fiber asphalt mixes. At the same time, this study established a regression equation between the test temperature and the low temperature evaluation index through quadratic fitting (the correlation coefficient is 0.960-0.998), and the regression relationship can be used to estimate the low temperature evaluation index at different test temperatures.

scholarly journals Mechanical Performance of Warm-Mixed Porous Asphalt Mixture with Steel Slag and Crumb-Rubber–SBS Modified Bitumen for Seasonal Frozen Regions

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 857 ◽  
Author(s):  
Yongchun Cheng ◽  
Chao Chai ◽  
Chunyu Liang ◽  
Yu Chen
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Acid Amide ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Crumb Rubber ◽  
Modified Bitumen ◽  
Porous Asphalt ◽  
Water Sensitivity ◽  
Temperature Crack

In this paper, the performance of a warm-mixed porous asphalt mixture (PAM) with steel slag as aggregate and crumb-rubber–SBS (styrene-butadiene-styrene) modified bitumen as a binder was studied. Two kinds of warming additives were used, namely ethylene bis stearic acid amide (EBS) and stearic acid amide (SA). The mixtures were investigated for their permeability, Marshall stability, low-temperature crack resistance, and underwent a rutting test, water sensitivity evaluation and Cantabro particle loss test. Then, the viscoelastic and dynamic characteristics of the mixtures were also analyzed. The results showed that the addition of the warming additives allowed the decrease of the manufacturing temperature by 10 °C. Thus, the addition of warming additives significantly improves the low-temperature crack resistance and slightly reduces the water sensitivity, weakly increases the permeability, and has little effect on the resilient modulus. Since the addition of SA significantly improves the low-temperature crack resistance and rutting resistance of the PAM, SA is therefore recommended for pavement engineering in seasonal frozen regions.

scholarly journals Effect of Polyester Fiber on Air Voids and Low-Temperature Crack Resistance of Permeable Asphalt Mixture

2020 ◽  
Vol 2020 ◽  
pp. 1-12 ◽  
Author(s):  
Jin-rong Wu ◽  
Fei Li ◽  
Qin-yong Ma
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Fiber Content ◽  
Polyester Fiber ◽  
Air Voids ◽  
Temperature Performance ◽  
Low Temperature Performance ◽  
Temperature Crack

With the rapid development of asphalt pavement, the drainage capacity of asphalt pavement is becoming more and more demanding. Therefore, it is imperative to study the permeable asphalt mixture. The air voids and the connected air voids are the main factors affecting the drainage function and low-temperature performance of asphalt pavement. In order to solve the drainage and low-temperature cracking problem, it is proposed to incorporate a certain amount of polyester fiber into the permeable asphalt mixture. This paper studies the air voids and low-temperature performance of asphalt mixture with different polyester fiber contents. It is concluded that with the increase of polyester fiber content, both the air voids and the connected air voids decrease first and then increase and reach the minimum value when the polyester fiber content is 0.4%. At this time, the low-temperature crack resistance of the permeable polyester fiber asphalt mixture is also the best.

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