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The aggregate as main raw materials of concrete, accounting for about 75% of the total each year.
Journal of Chongqing Jiaotong University (NATURAL SCIENCE EDITION),2008,27(5):709-711
International Journal of Concrete Structures and Materials,2013,7(1):61-69 [7] Sagoe-Crentsil, K.
Performance and properties of structural concrete made with recycled concrete aggregate[J].ACI Materials Journal,2003,100(5),371–380
Materials and Structures,2000, 33, 574–580

Introduction Symmetric rolling is commonly used in industrial practice and a huge majority of materials is formed in such a way.
N, Lee, Analysis of deformation textures of asymmetrically rolled steel sheets, International Journal of Mechanical Sciences, 43 (2001) 1997–2015 [3] S.
Baudin, Texture Evolution in Invar® Deformed by Asymmetrical Rolling, Materials Science Forum, 550 (2007) 551-556 [4] S.
Wroński, Texture heterogeneity of asymmetrically rolled low carbon steel, Archives of Metallurgy and Materials, 54 (2009) 89-102 [7] K.
Wierzbanowski, New Type of Diffraction Elastic Constants for Stress Determination, Materials Science Forum, 524-525 (2006) 235-240 [9] A.

(In Chinese) [3] Shengfen Jia, etc: Environmental science, Vol. 21(2000), p. 81-84.
(In Chinese) [4] Jiafeng Yang, Shuzhen Wang and Yingjie Yang: Journal of Shanghai Normal University (Natural Science), Vol. 31(2002), p. 66-70.
(In Chinese) [14] Jinxiang Fu, etc: Journal of Shenyang Jianzhu University (Natural Science), Vol. 24(2008), p. 2 65-268.
(In Chinese) [15] Yuancai Chen, etc: Journal of Hazardous Materials, Vol. 171(2009), p. 948-953
Environmental Science and Technology, Vol. 30(2007), p. 5-7.

MATERIALS AND EXPERIMENTAL PROCEDURES Materials Fly ash was obtained from Kampar power plant, Perak where it was collected by mechanical or electrostatic separators from the flue gases of thermal power plants.
Khairul Nizar, (2012) “A study on the synthesis of fly ash-based geopolymer  lightweight aggregate concrete,” Advance materials letters, (In press)
Australian Journal of Basic and Applied Science: pp. 1916-1922
M., Izzat, A.,(2012), “Fly ash porous material using geopolymerization process for high temperature exposure”, International Journal of Molecular Science, 13(4), 4388-4395
[16] Komljenović M, Bascarević Z, and Bradić V. (2010), “Mechanical and microstructural properties of alkali-activated fly ash geopolymers”, Journal Hazard Materials, 181(1-3): 35-42

Hence, UHMWPE laminated composites are becoming perfect materials for aerospace, tanks and personal protection.
It indicates that damage was occurred, this damage was mostly in the form of front-surface cracks and delamination which changed materials stiffness.
Lessard, Composites Science and Technology.
Zhang, Journal of Materials Science and Technology.
Liu: Advanced Materials Research (Trans Tech Publications, Shenzhen, China 2011) p. 926.

Some chemical materials such as HNO3 and alcohol were used as an etching regent.
Its reason that decreasing hardness and increasing the toughness on material.
References [1] Meier, M., “The heat treatment of Steel,” Dept. of Chemical and Material Science, Technical Paper, University of California, Davis, Sept. 11. 2004 [2] Chitty, J.A.; Pertuz, A.; Hintermann, H.; Puchi, E.S.
“Influence of electroless nickel-phosphorus deposits on corrosion-fatigue life of notched and un-notched samples of an AISI 1045 steel” Journal of Materials Engineering and Performance, 8 (1), 83-86 (1999) [3] Garces, Y., et.al., ”Fatigue Behavior of a quenched and tempered AISI 4340 steel coated with an electroless N-P deposit”, Proceedings of the 1999 26th International Conference on Metallurgic Coateings and Tin Films, San Diego., CA, USA, Apr 12-15 1999 [4] Totten, G.E., Steel Heat Treatment Handbook-Equipment and Process Design, 2nd Ed., Taylor and Francis, 2007 [5] D.
Effect Of Heat Treatment On Mechanical Properties And Microstructure Of Nst 37-2 Steel, Journal Of Minerals & Materials Characterization & Engineering, Vol. 10, No.3, Pp.299-308, 2011 [6] Elmer, J.

Materials Science Forum Vols. *** (2004) pp.886-890 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Laser Driven Substructural Modification of Austenitic Stainless Steel M.
(D) A SEM image for compacted minute deformation twins Materials Science Forum Vols. *** 889 it is easy to form annealing twins.
Xue, et al: Atca Materials Vol. 51 (2003), p. 1307 [5] B.
Rigsbee: Materials Science and Engineering Vol.
Bassim: Journal of Materials Processing Technology Vol. 119 (2001), p. 234.

Nanosecond pulsed laser heating of colloidal copper nanoparticles in water Samaneh Malek1, a * and Reza Poursalehi2,b 1Department of Physics, Faculty of Basic Sciences, Shahed University, Tehran, Iran 2Nanomaterials group, Department of Materials Engineering, Faculty of Engineering and Technology, Tarbiat Modares University, Tehran, Iran as.malek@shahed.ac.ir, bpoursalehi@modares.ac.ir Keywords: Nanoparticle, Laser, Optical absorption, Heating.
Our calculations show the appropriate laser wavelength and nanoparticle size which are preferred for large area heating, localized heating without thermal damage or completely localized destroying of small amount of species and polymeric materials modification.
On the basis of several proposed models for the melting temperature of nanoparticles, the melting point, , relative to the melting temperature of the corresponding bulk materials, , decreases with decreasing size in the following form: (8) where represents the nanoparticle diameter and is a material constant.
At the laser wavelength of 248 nm, larger nanoparticles are preferred for large area heating and small nanoparticles are more useful for completely localized destroying of small amount of species and polymeric materials modification.
Lin, Selective cell targeting with light-absorbing microparticles and nanoparticles, Biophysical Journal 84 (2003) 4023-4032

Zhen Jiang, 212003, China 5 School of Material and Science Engineering, Jiangsu University of Science and Technology.
Li and M.Zhu: CIESC Journal,Vol.62(2012) No.12, p.3861-3866[in Chinese]
Chen: Journal of East China Shipbuilding Institute(National Science Edition),Vol.17(2003) No.4, p.9212[in Chinese]
Wang, D.Sheng and S.Lu: Journal of East China Shipbuilding Institute (National Science Edition),Vol.27(2013) No.6, p.556-560 [in Chinese]
Kim: International Journal of Hydrogen, Vol,30(2005) No.4, p.381-384

Nearly, with the constant improvement of bridge calculation theory and construction technology and the application for high-strength lightweight materials in bridge engineering, the bridge develops towards to the complicated, long and thin structure system.
The model accurately reflected the vehicle’s characteristics of the spring of suspension, damper and the material of tires.
[26] Zhang Jun, Jiang Kebin, Mode Synthesis Analysis of the Dynamic System Coupling Bridge with Vehicle, Journal of PLA University of Science and Technology. 4(1) (2003) 67-70
Numerical Method for Vehicle-Bridge Coupling Vibrations Based on MATLAB, Journal of Chongqing Jiaotong University (Natural Science). 31(6) (2012) 1101-1104
Journal of railway Sciences and Engineering. 9(4) (2012) 19-24