scholarly journals BASIC STUDY ON LOW-TEMPERATURE CRACKING OF ASPHALT PAVEMENT USING STRESS RELEASE METHOD

2004 ◽  
Vol 9 ◽  
pp. 209-217
Author(s):  
Ryuji ABE ◽  
Hideto TAKEMOTO ◽  
Takuo SUZUKI ◽  
Kiyokazu KIMURA ◽  
Hitoshi TAGUCHI
Keyword(s):  
Low Temperature ◽  
Asphalt Pavement ◽  
Stress Release ◽  
Basic Study ◽  
Low Temperature Cracking ◽  
Release Method

Low-Temperature Cracking Analysis of Asphalt Pavement

2013 ◽  
Vol 361-363 ◽  
pp. 1625-1628
Author(s):  
Zhao Sheng Li ◽  
Yi Qiu Tan
Keyword(s):  
Low Temperature ◽  
Asphalt Pavement ◽  
Average Particle Size ◽  
Asphalt Mixture ◽  
Average Particle ◽  
Aggregate Gradation ◽  
Cracking Behavior ◽  
Behavior Study ◽  
Low Temperature Cracking ◽  
Shrinkage Coefficient

Establish the mechanical model of asphalt pavement low-temperature cracking, analysis the factors leading to cracking. The factors such as shrinkage coefficient of asphalt pavementtemperature stresspavement structure combination forms and temperature contribution affect the asphalt pavement on cracking behavior. Study the effect of aggregate gradation type on asphalt mixture temperature shrinkage coefficient, analyze shows that in case of the same skeleton type, the smaller the average particle size of aggregate is, the larger low-temperature shrinkage deformation of mixture is; increasing the amount of coarse aggregate can form the dense structure of skeletonreduce the shrinkage coefficient at low temperature and improve the low-temperature crack resistance ability of asphalt mixture.

scholarly journals BASIC STUDY OF STRESS MEASUREMENT BY STRESS RELEASE METHOD FOR ROADWAY PAVED WITH ASPHALT CONCRETE

2003 ◽  
Vol 8 ◽  
pp. 233-242
Author(s):  
Takeshi TANE ◽  
Masashi KUROSE ◽  
Kiyokazu KIMURA ◽  
Hitoshi TAGUCHI
Keyword(s):  
Asphalt Concrete ◽  
Stress Measurement ◽  
Stress Release ◽  
Basic Study ◽  
Release Method

Study on Low Temperature Performance of SBS Modified Asphalt and its Mixture

2014 ◽  
Vol 587-589 ◽  
pp. 1332-1336
Author(s):  
Jun Qing Chen ◽  
Ai Jun Li ◽  
Mei Qian Jin ◽  
Min Nan Zheng ◽  
Wan Yi Yang
Keyword(s):  
Tensile Strength ◽  
Low Temperature ◽  
Temperature Stress ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Modified Asphalt ◽  
Temperature Performance ◽  
Low Temperature Cracking ◽  
Low Temperature Performance ◽  
Sbs Modified Asphalt

Prone to low temperature cracking of asphalt pavement problems in cold areas, testing BBR on 70# base asphalt and 4 kinds of different dosage of SBS modified asphalt, testing TSRST on their mixture to appraisal the low temperature performance of SBS modified asphalt mixture. Results show that compared with the temperature stress of internal cracks of base asphalt and SBS modified asphalt mixture not rise significantly. But the stress of SBS asphalt mixture growing slow and the temperature of cracking reduce obviously; it means the low temperature performance improved. This shows that SBS improves the toughness and reduced the modulus of asphalt mixture in low temperature, rather than increasing the tensile strength of mixture specimens.

scholarly journals Cold In-Place Recycling Asphalt Mixtures: Laboratory Performance and Preliminary M-E Design Analysis

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2036
Author(s):  
Dongzhao Jin ◽  
Dongdong Ge ◽  
Siyu Chen ◽  
Tiankai Che ◽  
Hongfu Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Dynamic Modulus ◽  
Asphalt Pavement ◽  
Asphalt Binder ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Asphalt Emulsion ◽  
Moisture Susceptibility ◽  
Low Temperature Cracking

Cold in-place recycling (CIR) asphalt mixtures are an attractive eco-friendly method for rehabilitating asphalt pavement. However, the on-site CIR asphalt mixture generally has a high air void because of the moisture content during construction, and the moisture susceptibility is vital for estimating the road service life. Therefore, the main purpose of this research is to characterize the effect of moisture on the high-temperature and low-temperature performance of a CIR asphalt mixture to predict CIR pavement distress based on a mechanistic–empirical (M-E) pavement design. Moisture conditioning was simulated by the moisture-induced stress tester (MIST). The moisture susceptibility performance of the CIR asphalt mixture (pre-mist and post-mist) was estimated by a dynamic modulus test and a disk-shaped compact tension (DCT) test. In addition, the standard solvent extraction test was used to obtain the reclaimed asphalt pavement (RAP) and CIR asphalt. Asphalt binder performance, including higher temperature and medium temperature performance, was evaluated by dynamic shear rheometer (DSR) equipment and low-temperature properties were estimated by the asphalt binder cracking device (ABCD). Then the predicted pavement distresses were estimated based on the pavement M-E design method. The experimental results revealed that (1) DCT and dynamic modulus tests are sensitive to moisture conditioning. The dynamic modulus decreased by 13% to 43% at various temperatures and frequencies, and the low-temperature cracking energy decreased by 20%. (2) RAP asphalt incorporated with asphalt emulsion decreased the high-temperature rutting resistance but improved the low-temperature anti-cracking and the fatigue life. The M-E design results showed that the RAP incorporated with asphalt emulsion reduced the international roughness index (IRI) and AC bottom-up fatigue predictions, while increasing the total rutting and AC rutting predictions. The moisture damage in the CIR pavement layer also did not significantly affect the predicted distress with low traffic volume. In summary, the implementation of CIR technology in the project improved low-temperature cracking and fatigue performance in the asphalt pavement. Meanwhile, the moisture damage of the CIR asphalt mixture accelerated high-temperature rutting and low-temperature cracking, but it may be acceptable when used for low-volume roads.

scholarly journals Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1541 ◽  
Author(s):  
Limin Li ◽  
Zhaoyang Guo ◽  
Longfei Ran ◽  
Jiewen Zhang
Keyword(s):  
Low Temperature ◽  
Early Stage ◽  
Asphalt Pavement ◽  
Climatic Conditions ◽  
Asphalt Binders ◽  
Composition Analysis ◽  
Cracking Resistance ◽  
Modified Asphalt ◽  
Cracking Performance ◽  
Low Temperature Cracking

The low-temperature cracking performance of asphalt is considered one of the main deteriorations in asphalt pavements. However, there have been few studies on the low-temperature cracking performance of asphalt under heat and light together. Hence, the ductility test, bending beam rheometer (BBR) test, and asphalt composition analysis test are combined to investigate the low-temperature cracking performance under heat and light together based on the climatic conditions of China. The styrene–butadiene–styrene block copolymer (SBS)-modified asphalt binders were prepared with different modifier types and base asphalt in this research. The results show that the low-temperature cracking resistance of asphalt reduces under heat and light together. It is obviously reduced at the early stage, and it becomes worse with the increase of the aging time, temperature, and ultraviolet (UV) intensity. The asphalt composition has a significant impact on its low-temperature cracking performance, and the SBS modifier can improve the low-temperature cracking resistance of asphalt. The rational selection of base asphalt and modifier can improve the low-temperature cracking performance of asphalt. Under heat and light together, whether base asphalt or modified asphalt, the change trends of their ductility and component content are similar. Therefore, to improve the anti-cracking ability of the asphalt pavement, it is suggested to use the ductility of asphalt aged by heat and light together for 15 days as the evaluation index of the low-temperature cracking performance of asphalt, and asphalt should be selected according to the temperature and UV intensity of the asphalt pavement use area.

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