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Lab Simulation Study on Anti-cracking Performance of Asphalt Concrete Overlays for Fatigue Zuzhong LI1,a, Shuanfa CHEN1, Weidong LIAO2 and Ruixing YUAN1 1School of Materials Science and Engineering, Chang’an University, Xi’an 710061, Shaanxi，China 2Hanshi Highway Administration of Hubei Province, Wuhan 430051, Hubei, China azuzhongli@126.com Keywords: Asphalt overlays; Reflective crack; Stress absorbing layers; Simulation test Abstract.
The reflective crack simulation tests of bending and shearing styles with six asphalt overlays were carried out in order to evaluate the anti-cracking effects of different kinds of anti-cracking materials.
(2) By adding or setting the geotextile materials in the structure of asphalt overlays, the reflective cracking of the overlays is obstructed.
Gao: Journal of Southeast University (Natural Science Edition), Vol. 37 (2007) No.1, p.128~131
Wang: Journal of Chang’an University(Natural Science Edition), Vol. 26 (2006) No.5, p.9~12.

The finite element method has been widely applied to simulate the plastic flow of part materials during the forming process.
The main reason is that the tooling structure with counterpressure is preventing the material in the round-fin cavity from moving down, which cannot stop until the materials of each round-fin in the die flow balancedly.
Acknowledgment The work was supported by the Natural Science Foundation of Zhejiang Province, PR China (Grant No.
Y1111068) and the Natural Science Foundation of Ningbo City, Zhejiang Province, PR China (Grant No.2012A610055).
Corresponding Author The information about corresponding author is as follows: Name, Kesheng Wang; Email, xclwks@126.com; Mobile phone: 15958281379 References [1] Cheng Sun, Shi-Hong Zhang, Wei Dong Tang and Zhong-Tang Wang: Materials and Manufacture Processes Vol.25(2010), P. 534 [2] Lu Xianfeng, Zhang Ruhua and Min Shuigen: Chinese Journal. of Mechanical Engineering Vol.43(2007), P.184 [3] Ulysse P, and Johnson RE: Int.

Design of lead-free solders and pollution control of lead Guisheng Gan1, a*, Changhua Du1, b, Chuntian Li 1, c 1School of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, China aggs@cqut.edu.cn, bduchanghua@cqut.edu.cn, clct0214@cqut.edu.cn Keywords: lead-free; volatility; solubility, soldering process Abstract: Due to increase refined lead production and slow industrialization of lead-free solders, hazard of lead to human and environment still existed.
The gas and dust produced by energy and transportation, metallurgy and building materials, was the main source of heavy metals in the atmosphere.
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Materials and Methods Materials.
Polymer-Plastics Technology and Materials, Vol. 60(2021), p. 579-600
Journal of Polymer Science, Vol.58(2020), p. 3115-3141
Materials Science and Engineering, Vol.49(2005), p.89
Journal of Materials Science, Vol.43(2008), p.6064-6092.

Elimination of contact with specimen would facilitate to analyze of early-stage materials formation such as green material, un-polymerized and consolidated material.
The attenuation of materials depend on internal characteristic of material, density of material, microstructure and surface roughness of material.
The relationship of attenuation of materials to the frequency show in Table 3.
This is due to the density of plasticine among those 3 materials.
Pandey, Ultrasonic properties at the nanoscale in some metals, Materials Letters. 59 (2005) 564-569.

Takahashi: Composites Science and Technology, 61 (2001) 2117-2128; [2] Y.
Kohtoku: Journal of Materials Science, 33 (1998) 1217-1225; [3] P.
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Fig.1 The environmental effect of mine waste rock pile Materials and Methods The materials used in experiment come from the mine waste rock pile located in Hai Zhou mine area, which is shown in Fig.2 (by Google Earth).
Journal of Anhui University of Science and Technology (Natural Science). 2004, Vol.24(s):10-15
Journal of China Coal Society, 2006,Vol.31, No.6:808-812
Journal of Safety and Environment, Vol.6, No.2: 19-22
Journal of Earth Sciences and Environment. 2008, Vol.30, No.2:192-196.

Materials and Methods.
Bezuglov, Mathematical modeling of fire-proof efficiency of coatings based on silicate composition, Materials Science Forum, 1006 (2020) 70–75
Starova, Experimental and computer researches of ferroconcrete beams at high-temperature influences, Materials Science Forum, 968 (2019) 355–360
Materials Science Forum, 1006 (2020)166–172
Lapovska, Construction materials science: Textbook, Rivne: NUVHP, 2016

Introduction At present, significant attention is paid to the research and development of nanocomposite magnetic polymer materials – magnetoplastics.
Results and Discussion The work uses several various purpose materials and methods, conditioned by goals and tasks, solved within its framework.
This set of materials and methods in different combinations should show the potential of the "structure-property" ratio regulation within the LCPM matrix using the transformable magneto-structural properties of the UDM.
(in Russian) [2] Ignacio Moreno-Villoslada, Ranjita K Bose, Francesco Picchioni, Mario E Flores, Rodrigo Araya-Hermosilla, Self-Healing Polymer Nanocomposite Materials by Joule Effect, Polymers. 2021.13649. https://doi.org/10.3390/polym13040649, https://www.mdpi.com/journal/polymers
The science, 2015. – 496 p

Materials and Method Deposition Base materials.
These materials are used in hydraulic vanes that come into contact with water containing abrasive particles [10].
The ability to store materials with very high melting temperatures, such as WC, that cannot be effectively applied by other conventional methods.
Aydin, Hydro-abrasive erosion resistance of C45 steel in different heat-treated states on a designed wear test apparatus, Materials Testing (2010), 323-331
Wegener, Comprehensive distortion analysis of a laser direct metal deposition (DMD)-manufactured large prototype made of soft martensitic steel 1.4313, Journal of Manufacturing and Materials Processing (2024), 78