Experiment Study of Water Stability of Fiber-Reinforced Asphalt Mixture

2011 ◽  
Vol 243-249 ◽  
pp. 710-716 ◽  
Author(s):  
Ying Chun Cai ◽  
Yuan Xun Zheng
Keyword(s):  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Asphalt Mixtures ◽  
Water Stability ◽  
Fiber Reinforced ◽  
Freeze Thaw ◽  
Optimum Dosage ◽  
Splitting Strength ◽  
Splitting Test ◽  
Marshall Test

To study the influence of fiber on the water stability of asphalt mixtures, the optimum dosage of asphalt and fibers are studied by the method of Marshall test and rut test. The results demonstrate that the optimum dosage of asphalt and fibers are 4.63% and 0.30%, respectively. Then the improved effects of basalt fiber on water stability of asphalt mixtures are evaluated through immersed Marshall test and freeze-thaw splitting test according to related specifications. The results show that the freeze-thaw splitting strength and splitting strength without freeze-thaw of fiber-reinforced asphalt mixture are improved to some extent compared with control mixture. Splitting strength without freeze-thaw of basalt, polyester and xylogen fiber-reinforced asphalt mixture is increased by 36.4%, 15.4% and 6.2%, and freeze-thaw splitting strength is increased by 55.2%, 28.7% and 14.5%. It can be concluded that fiber can remarkably improved the water stability of asphalt mixtures, besides; the improvement effects of basalt fiber are superior to polyester fiber and xylogen fiber.

Investigation of the Performance of Basalt Fiber Reinforced Asphalt Mixture

2020 ◽  
Vol 10 (5) ◽  
pp. 1561 ◽  
Author(s):  
Hua Zhao ◽  
Bowen Guan ◽  
Rui Xiong ◽  
Aiping Zhang
Keyword(s):  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Polyester Fiber ◽  
Fiber Reinforced ◽  
The Road ◽  
Water Sensitivity ◽  
Temperature Performance ◽  
Splitting Test ◽  
Road Performance ◽  
Marshall Stability

This study is focused on the effect of basalt fiber on the road performance of the asphalt mixture. The road performance of asphalt mixture with different dosages of basalt fiber was comprehensively evaluated using Marshall Stability test, the wheel tracking test, the three-point bending beam test and the freezing-thaw splitting test. The road performance of lignin fiber reinforced asphalt mixture and polyester fiber reinforced asphalt mixture also were tested to compare with the road performance of basalt fiber reinforced asphalt mixture. The results showed that basalt fiber can enhance mechanical properties, the low-and high-temperature performance and water sensitivity of the asphalt mixture significantly. Considering the road performance and economic benefits, the appropriate dosage of basalt fiber is about 0.3%. Marshall Stability (MS), dynamic stability (DS), the maximum bending strain and the tensile strength ratio (TSR) of asphalt mixture with 0.3% basalt fiber were increased by 19.6%, 25.5%, 22.2% and 6.0%, respectively. Basalt fiber has certain advantages in improving the low-temperature performance of asphalt mixture by comparison with lignin fiber and polyester fiber.

scholarly journals Study on Viscoelastic Properties of Asphalt Mixtures Incorporating SBS Polymer and Basalt Fiber under Freeze–Thaw Cycles

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1804
Author(s):  
Wensheng Wang ◽  
Guojin Tan ◽  
Chunyu Liang ◽  
Yong Wang ◽  
Yongchun Cheng
Keyword(s):  
Viscoelastic Properties ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Asphalt Mixtures ◽  
Freeze Thaw ◽  
Static Creep ◽  
Styrene Butadiene Styrene ◽  
Styrene Butadiene ◽  
Static Creep Test ◽  
Butadiene Styrene

This study aims to study the viscoelastic properties of asphalt mixtures incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber under freeze–thaw (F-T) cycles by using the static creep test. Asphalt mixture samples incorporating styrene–butadiene–styrene (SBS) polymer and basalt fiber were manufactured following the Superpave gyratory compaction (SGC) method and coring as well as sawing. After 0 to 21 F-T cycles processing, a uniaxial compression static creep test for the asphalt mixture specimens was performed to evaluate the influence of F-T cycles. The results indicated that the F-T cycles caused a larger creep deformation in the asphalt mixtures, which led to a decrease in the rut resistance of the asphalt mixtures incorporating SBS polymer and basalt fiber. Besides, the resistance to deformation decreased significantly in the early stage of F-T cycles. On the other hand, the viscoelastic parameters were analyzed to discuss the variation of viscoelastic characteristics. The relaxation time increased with F-T cycles, which will not be conducive to internal stress dissipation. Compared with lignin fiber, basalt fiber can improve the resistance to high-temperature deformation and the low-temperature crack resistance of asphalt mixtures under F-T cycles.

Experimental Study on Overlay Asphalt Mixture

2012 ◽  
Vol 253-255 ◽  
pp. 607-610
Author(s):  
Yu Qing Yuan ◽  
Wei Li ◽  
Xue Chan Li ◽  
Tao Guo
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Immersion Test ◽  
High Temperature Stability ◽  
Freeze Thaw ◽  
Passing Rate ◽  
Splitting Test ◽  
Marshall Test ◽  
Higher Temperature

To study the asphalt pavement performances on high temperature or its water stabilities, a series of tests, including high temperature stability test, immersion Marshall test, freeze-thaw splitting test, were finished. According to bailey method, initial quasi grading were calculated. Passing rate of 2.36 mm is respectively 36.3%, 33.1%, 36.1%, 38.7%, which is close to the initial quasi grading, namely 36%, 31.5%, 36%, 40%. Respectively at the test temperature of 60 °C, 68 °C, rutting tests were put forward. The results show that the mixture of gradation one has a higher temperature stability than the others in any case. Marshall immersion test and freeze-thaw test were conducted, optimizing with freeze-thaw splitting intensity ratio, which shows that the mixture of gradation one has a better water stability. To sum up, gradation one is recommended, designed by Marshall compaction molding with times of 100.

scholarly journals Further Investigation on Damage Model of Eco-Friendly Basalt Fiber Modified Asphalt Mixture under Freeze-Thaw Cycles

2018 ◽  
Vol 9 (1) ◽  
pp. 60 ◽  
Author(s):  
Wensheng Wang ◽  
Yongchun Cheng ◽  
Guirong Ma ◽  
Guojin Tan ◽  
Xun Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Asphalt Mixtures ◽  
Splitting Tensile Strength ◽  
Stiffness Modulus ◽  
Freeze Thaw ◽  
Damage Characteristics ◽  
Indirect Tensile

The main distresses of asphalt pavements in seasonally frozen regions are due to the effects of water action, freeze-thaw cycles, and so on. Basalt fiber, as an eco-friendly mineral fiber with high mechanical performance, has been adopted to reinforce asphalt mixture in order to improve its mechanical properties. This study investigated the freeze-thaw damage characteristics of asphalt mixtures reinforced with eco-friendly basalt fiber by volume and mechanical properties—air voids, splitting tensile strength, and indirect tensile stiffness modulus tests. Test results indicated that asphalt mixtures reinforced with eco-friendly basalt fiber had better mechanical properties (i.e., splitting tensile strength and indirect tensile stiffness modulus) before and after freeze-thaw cycles. Furthermore, this study developed logistic damage models of asphalt mixtures in terms of the damage characteristics, and found that adding basalt fiber could significantly reduce the damage degree by about 25%, and slow down the damage grow rate by about 45% compared with control group without basalt fiber. Moreover, multi-variable grey models (GM) (1,N) were established for modelling the damage characteristics of asphalt mixtures under the effect of freeze-thaw cycles. GM (1,3) was proven as an effective prediction model to perform better in prediction accuracy compared to GM (1,2).

scholarly journals Fracture Damage Properties of SBS-Modified Asphalt Mixtures Reinforced with Basalt Fiber after Freeze-Thaw Cycles Using the Acoustic Emission Approach

2020 ◽  
Vol 10 (9) ◽  
pp. 3301 ◽  
Author(s):  
Chunyu Liang ◽  
Junchen Ma ◽  
Peilei Zhou ◽  
Guirong Ma ◽  
Xin Xu
Keyword(s):  
Acoustic Emission ◽  
High Temperature ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Load Level ◽  
Asphalt Mixtures ◽  
Fracture Characteristics ◽  
Freeze Thaw ◽  
Ae Signal ◽  
Fracture Damage

This paper focuses on the fracture damage characteristics of styrene-butadiene-styrene (SBS)-modified SMA-13 specimens with basalt fiber under various freeze-thaw (F-T) cycles. SBS-modified stone mastic asphalt (SMA)-13 specimens with basalt fiber were prepared, first, using the superpave gyratory compaction method. Then, asphalt mixture specimens processed with 0–21 F-T cycles were adopted for the high-temperature compression and low-temperature splitting tests. Meanwhile, the acoustic emission (AE) test was conducted to evaluate the fracture characteristics of the asphalt mixture during loading. The results showed that the AE parameters could effectively reflect the damage fracture characteristics of the asphalt mixture specimen during the high-temperature compression and low-temperature splitting processes. The fracture damage of the asphalt mixture specimens during compression or splitting are classified into three stages based on the variation of the AE signals, i.e., when the load level is below 0.1~0.2 during the first stage and the load level is 0.1–0.9 or 0.2–0.8 during the second stage. The AE signal amplitude and count show clear correlations with the compression and splitting load levels. Meanwhile, the AE signal clarifies the formation, development, and failure of internal damage for the asphalt mixture specimens during the compression and splitting processes. The intensity (value and density) of the AE signal parameters of asphalt mixture decreases with increasing F-T cycles. It is evident that the F-T cycle has a significant adverse effect on the mechanical strength of asphalt mixture, which makes asphalt mixtures more likely to cause early failure.

scholarly journals Comparative Study on the Damage Characteristics of Asphalt Mixtures Reinforced with an Eco-Friendly Basalt Fiber under Freeze-thaw Cycles

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2488 ◽  
Author(s):  
Yongchun Cheng ◽  
Wensheng Wang ◽  
Yafeng Gong ◽  
Shurong Wang ◽  
Shuting Yang ◽  
...  
Keyword(s):  
Mechanical Performance ◽  
Design Method ◽  
Damage Model ◽  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Asphalt Mixtures ◽  
Fiber Content ◽  
Freeze Thaw ◽  
Damage Characteristics ◽  
Positive Effects

The main distresses of asphalt pavements in seasonal frozen regions are due to the effects of water action, freeze-thaw cycles, traffic, and so on. Fibers are usually used to reinforce asphalt mixtures, in order to improve its mechanical properties. Basalt fiber is an eco-friendly mineral fiber with high mechanical performance, low water absorption, and an appropriate temperature range. This paper aims to address the freeze-thaw damage characteristics of asphalt mixtures (AC-13) reinforced with eco-friendly basalt fiber, with a length of 6 mm. Based on the Marshall design method and ordinary pavement performances, including rutting resistance, anti-cracking, and moisture stability, the optimum asphalt and basalt fiber contents were determined. Test results indicated that the pavement performances of asphalt mixture exhibited a trend of first increasing and then deceasing, with the basalt fiber content. Subsequently, asphalt mixtures with a basalt fiber content of 0.4% were prepared for further freeze-thaw tests. Through the comparative analysis of air voids, splitting strength, and indirect tensile stiffness modulus, it could be found that the performances of asphalt mixtures gradually declined with freeze-thaw cycles and basalt fiber had positive effects on the freeze-thaw resistance. This paper can be used as a reference for further investigation on the freeze-thaw damage model of asphalt mixtures with basalt fiber.

Research on Evaluation Index of Water Stability for Asphalt Mixtures

2013 ◽  
Vol 634-638 ◽  
pp. 2724-2728 ◽  
Author(s):  
Zhao Hui Sun ◽  
Guo Feng Yang ◽  
Tie Bin Wang ◽  
Zhi Song Wang
Keyword(s):  
Tensile Tests ◽  
Asphalt Mixtures ◽  
Evaluation Index ◽  
Water Stability ◽  
Freeze Thaw ◽  
Research On Evaluation ◽  
Bituminous Mixtures ◽  
Test Pieces ◽  
Marshall Test ◽  
Residual Stability

Aiming at the deficiency of the water stability evaluation index of bituminous mixtures by immersion Marshall test in present specifications in china, the water stability of various of bituminous mixtures test pieces was analyzed by comparing freeze-thaw splitting tensile tests with immersion Marshall stability tests. There is larger difference between the evaluation results of immersion Marshall test and freeze-thaw splitting tensile test. The residual stability by immersion Marshall test is rarely inconsistent with regulatory requirements, Residual modulus is brought up to evaluate the water stability of bituminous mixtures. Residual modulus suggested to evaluate the water stability of asphalt mixtures has the similar trend with freeze-thaw splitting tensile strength ratio and the residual modulus threshold valve 0.85 is recommended.

scholarly journals Effect of Short-Term Aging Process on the Moisture Susceptibility of Asphalt Mixtures and Binders Containing Sasobit Warm Mix Additive

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Bo Li ◽  
Jinyu Yang ◽  
Xiaohui Li ◽  
Xiang Liu ◽  
Feng Han ◽  
...  
Keyword(s):  
Aging Time ◽  
Sessile Drop ◽  
Asphalt Mixtures ◽  
Asphalt Binders ◽  
Moisture Susceptibility ◽  
Freeze Thaw ◽  
Splitting Test ◽  
Marshall Test ◽  
Key Issues ◽  
Marshall Stability

Moisture susceptibility is one of the key issues of warm mix asphalt (WMA). In this research, the moisture susceptibility of asphalt mixtures and binders containing Sasobit warm mix additive was investigated in comparison to that of hot mixture asphalt (HMA) through laboratory aging experiments. The WMA asphalt mixtures were aged in the laboratory at three aging temperatures and times. The moisture susceptibility of the asphalt mixtures was measured through the laboratory immersed Marshall test and freeze-thaw splitting test. The surface free energy (SFE) of asphalt binders extracted from WMA asphalt mixtures was determined by the sessile drop method. The results show that the aging time and temperature have a significant effect on the improvement in moisture susceptibility in terms of both the freeze-thaw splitting strength ratios and the residual Marshall stability of asphalt mixtures containing Sasobit warm mix additive. The SFE of asphalt binders extracted from Sasobit warm mix increased with the aging time and temperature. The moisture susceptibility of the asphalt mixtures and binders containing Sasobit warm mixes was similar to or even greater than that of HMA aging under certain conditions.

scholarly journals A Study on the Application of Rock Asphalt from Sichuan China Based on Anti-Rutting Performance

2019 ◽  
Vol 9 (5) ◽  
pp. 870 ◽  
Author(s):  
Limin Li ◽  
Zhaoyi He ◽  
Weidong Liu ◽  
Cheng Hu
Keyword(s):  
Low Temperature ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Strength Ratio ◽  
Modified Asphalt ◽  
Freeze Thaw ◽  
Splitting Strength ◽  
Tensile Fatigue

To solve the early rutting failure of asphalt pavement, the application of rock asphalt from Sichuan, China, based on anti-rutting performance, was studied. Preparations of North Sichuan rock asphalt (NS RA) and NS RA-modified asphalt mixture were elaborated in detail. Using Zhonghai AH-70 asphalt, Esso AH-70 asphalt, North American rock asphalt (NA RA) and NS RA, the performances of NS RA modified asphalt were researched based on index tests, Brookfield rotary viscosity test and bending beam rheometer test. A performance verification of NS RA-modified asphalt was carried out using rutting calculation, the rutting, indirect tensile fatigue, freeze–thaw split and small beam bending tests based on five kinds of selected gradations. The results indicated that in comparison with NA RA, the NS RA has a good modification effect as well. The NS RA can obviously improve the anti-rutting ability of the asphalt binder, and it can enhance its anti-aging performance as well. For the NS RA-modified asphalt mixture, it is feasible to determine the optimum NS RA content, based on its anti-rutting performance, and its optimum NS RA content is about 8%. The dynamic stability values of NS RA-modified asphalt mixtures are at least 3-fold higher than those of the base asphalt mixtures, and they are all far greater than the summer hot area requirement (no less than 2800 times/mm). NS RA-modified asphalt mixtures used in the middle course of asphalt pavement can obviously improve the anti-rutting performance of the pavement, and to enhance the anti-rutting ability of pavements, it should be used in the middle course of the pavement. The fatigue life values of NS RA-modified asphalt mixtures are at least 14.5-fold higher than those of the base asphalt mixtures. The freeze–thaw splitting strength ratio values of NS RA-modified asphalt mixtures are improved by at least 9.5% over the base asphalt mixtures, and their freeze–thaw splitting strength ratio values are all greater than the requirement (no less than 75%). In comparison with the base asphalt, the low temperature performances of NS RA-modified asphalt and its mixtures slightly decline, but they can meet the requirements for the zones with a minimum temperature of no less than –21.5 °C too. Therefore, except for the extremely low temperature area, it is an effective method for solving the rutting problem of pavement for using NS RA-modified asphalt.

Research on Basalt Fiber Asphalt Concrete's Water Stability

2014 ◽  
Vol 505-506 ◽  
pp. 117-120 ◽  
Author(s):  
Chun Mei Gao ◽  
Qiang Zhang ◽  
Hu Zhu Zhang
Keyword(s):  
Experimental Study ◽  
Asphalt Concrete ◽  
Basalt Fiber ◽  
Test Method ◽  
Water Stability ◽  
Optimum Amount ◽  
Freeze Thaw ◽  
Splitting Test ◽  
Better Than

Conduct experimental study on water stability about asphalt concrete with 6m30m and 9mm basalt fiber and without basalt fiber,6mm fibers whose dosage is 0.12%0.15% and 0.17%, 9mm fibers whose dosage is 0.05%0.07% and 0.1%,test method is Freeze-thaw splitting test. The results show that the asphalt concrete mixed basalt fiber is better than not added fiber asphalt concrete on water stability; the asphalt concrete mixed 9mm basalt fiber is better than that mixed 6mm; when without experiencing freeze-thaw ,there is 1.57% difference between the maximum which 6mm basalt fiber correspond and the maximum which 9mm basalt fiber correspond, after two freeze-thaw cycles, there is 2.54% difference between the maximum which 6mm basalt fiber correspond and the maximum which 9mm basalt fiber correspond. For water stability, the optimum amount of value about 9mm basalt fiber is 0.07% and the 6mm is 0.1%.

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