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Application Technology of Thin Asphalt Concrete Overlay on Old Pavement Sheng Li 1, a, ZhaoHui Liu 2,b, XinChun Chen2,c 1Key Laboratory of Road Structure and Material of Ministry of Transport, Changsha City, China 2Changsha University of Science and Technology, Changsha City, China alishengttt@163.com, bzh2309471@yahoo.com.cn, c chenxc10@126.com Keywords: Road engineering; Thin asphalt concrete overlay; Functional recovery; Application technology Abstract.
the structural strength of asphalt pavement and deformation resistance capacity of the asphalt layer meet the technical requirements (traffic volume, weather condition and usage performance), to compare the economic and technological aspects of thin overlays program based on principals of local conditions, reasonable materials selection, saving investment, and to choose the advanced technological, safe and reliable, economical, convenient construction structural concept. 2) Follow the scientific, reliable, applicable and economic guideline, and actively, carefully promote new technology, new materials, and advanced process to earnestly pave test section and to gather experiences, make constant improvement and promote step by step. 3) Pavement structure program shall attach to pertinent regulations of environment protection, and reasonably arrange the mixing and standing position of asphalt mixture and properly deal with the old asphalt mixture waste to protect the environment and reduce
then to spray SBS modified asphalt cohesive waterproof layer on the milled road surface. 3.1Target mix design of thin asphalt concrete overlay materials Stones used for project choose sturdy andesite, whose particle shapes are very good, as they all shape like proximate square, and ore powder is replaced by cement to improve water stability and high temperature stability.
Table 3 Screening results of hot material silo Sieve pore 16 13.2 9.5 4.75 2.36 1.18 0.6 0.3 0.15 0.075 12~9mm 100 100 70.306 2.3863 0 0 0 0 0 0 9~5mm 100 100 100 4.4626 0 0 0 0 0 0 0~3mm 100 100 100 97.908 83.998 63.832 55.889 45.719 35.471 23.0531 From the screening results we can see that, materials of 0～3mm contain too much powder of less than 0.075mm, so it is hard to formulate the required gradation (sieve pore passing percentage of powder of 0.15mm and 0.075mm is too large, while that of 1.18mm and 0.6mm is too small), thus limestone is temporarily chosen to substitute andesite, and small amount of natural sand is mixed in to improve the passing percentage of middle sieve pore, the screening results and preliminary mix ratio of each hot material silo, natural sand and cement during the mix production is shown in table 4.
China journal of highway and transport, 2005(1)

Klimpel2,e 1 Department of Materials Processing Technology and Computer Techniques in Materials Science Institute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, ul.Konarskiego 18A, Poland 2 Department of Welding, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, ul.
Introduction One of this treatments could be laser surface treatment, which allows modify the properties of the surface of the material without modifying the core of it.
There is an opinion that laser manufacturing techniques belong to the most promising and efficient ones, for ensuring the development in many industry branches, and especially those in which materials processing dominates.
Etching time was selected experimentally for each investigated material's surface layer form.
Barnes et al.: Journal of Materials Processing Technology 139, 2003, p. 585-588. 0 100 200 300 400 500 600 700 35 45 55 65 75 85 95 105 Feα (200) Feα (211) Reflaction angle [2Θ] Feα (110) Intensity [imp/s] 0 50 100 150 200 25035 45 55 65 75 85 95 105 Reflaction angle [2Θ] Intensity [imp/s] WC (001) WC (100) WC (110) Fe3C (211) WC (101) W (200) Fe (110) Fe (200) W (211) Fe (211)

Depending on the wavelength of the heating laser pulse, the optical properties of materials in thin films are generally temperature dependent.
Thermal and optical properties are assumed as functions of temperature and the materials are considered isotropic.
Thermophysical and optical properties of the employed materials are reported in tables 3 and 4.
Manca: ASME Journal of Heat Transfer Vol. 122 (2000), pp. 113
Ricci, $umerical Model for Back Treatment of Multilayer Thin Films Irradiated by a Moving Laser Source, Proc of the International Congress in Materials Science and Engineering, Iasi, Romania (2009) [12] D.

According to Mehta’s “the easiest, and the most effective solution” [8], the concrete’s density and durability will be improved by nano materials filled all pores and microcracks.
Materials and Methods Materials and mixtures.
It leaded an increase in atoms numbers, as the materials size reached nanometer level.
Acknowledgements This study, was financially supported by Natural Science Foundation of Ningxia grant No.
Zhang: Journal of Zhejiang University of Technology Vol. 30(2002), p. 31-35

The prepared materials were applied for the photocatalytic reduction of CO2, and the produced amount of CH3OH was 618.7 mmol·gcat–1.
Experimental Materials and chemicals.
The morphology of the materials was characterized by transmission electron microscopy (TEM, Tecnai F20, FEI Corporation, United States).
Tan, Visible light assisted photocatalytic reduction of CO2 to ethane using CQDs/Cu2O nanocomposite photocatalyst, Diamond and Related Materials. 91 (2019) 64-73
MacFarlane, Carbon quantum dots/Cu2O heterostructures for solar-light-driven conversion of CO2 to methanol, Advanced Energy Materials. 5 (2015) 1401077

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Bennecer2,b 1,2 Physics Laboratory at Guelma, faculty of Sciences and Engineering, University of Guelma, P.O.
Our results indicate that the anisotropy in these materials is mostly due to the tensile strain in the GaP layers.
Introduction The progress in novel growth techniques, has made it possible to grow high quality semiconductor heterostructures and superlattices (SLs) from heavily lattice mismatched materials [1], up to a lattice mismatch of about 7% if the layers are kept sufficiently thin.
The semiconducting strained SLs are potential materials for various electronic and optoelectronic devices [2,3].
Maeda, Journal of Crystal Growth 276 (2005) 374

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Methods and Materials In-situ Stress.
The reinforced concrete liner type in phase2 was designed to be used as an elastic support material.
Electronic Journal of Geotechnical Engineering, vol. 21.12, pp 4101-4119
International Journal of Rock Mechanics and MiningSciences, Proceedings of the ISRM SINOROCK 2004 Symposium, edited by J.A.
Electronic Journal of Geotechnical Engineering, vol. 21.11, pp 4247-4272

It is an emerging area of inter-disciplinary research between people in the electrical engineering, computer science, and among their various disciplines Sensors is a peer-refereed scientific journal on the science and technology of physical/chemical sensors and biosensors.
They do so using the minimum energy needed to reach the cluster head, and only need to keep their radios on during their time slot. 3 Improved LEACH Clustering Algorithm and Experiments A sensor network normally constitutes a wireless ad-hoc network, meaning that each sensor supports a multi-hop routing algorithm (several nodes may forward data packets to the base station).In computer science and telecommunications, wireless sensor networks are an active research area with numerous workshops and conferences arranged each year.
WINS networks provide sensing, local control, and embedded intelligent systems in structures, materials, and environments.
Martinez, Environmental Sensor Networks:A revolution in the earth system science, pp. 177-191.2006 [7] Adam Dunkels, Niclas Finne, Joakim Eriksson, and Thiemo Voigt.