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The composite materials of precast concrete tube column are the same.
In addition the composite materials of precast concrete tube column are same, so common effect is better than the steel tube concrete.
Ultra-high strength concrete has high request in quality of concrete materials, curing condition and so on.
Concrete materials used the concrete damage plasticity model and steel material used the ideal elastic-plastic model.
Beijing: Science Press, 2005.

Experiment 2.1 Materials Expansive agent was prepared from magnesite which is calcined in an electric furnace in laboratory at 1150~1300 °C for 1~1.5 h, then was allowed to cool down in air and ground to powder. 42.5 MPa medium heat Portland cement (ISO) and Fly ash Grade I from Guizhou Province were used.
The chemical compositions of these materials are shown in Table 1.
ACI Journal 67 (1970), 273-309
Using a new composite expansive material to decrease deformation and fracture of concrete.
Materials Letters 62(2008), 106-108.

However, it is hard to observe the plastic flow of materials because of the short welding time and the flash generated during welding process.
The Test Equipment, Materials and Methods The physical simulation equipment consists of pressurized structure, servo control loading system, left and right reciprocating motion mechanism, visual test chamber, transducer and alternating-current motor, etc.
References [1] M.E.Nunn, 1st International Conference on Innovation and Integration in Aerospace Sciences, Queen’s University Belfast, August 2005 [2] J.T, C.B.Sun, T.C.
Zhang, Mechanism analysis on defects formation of titanium alloy linear friction welding, Aeronautical Manufacturing Technology. 10(2009)139-142 [3] P.Wanjara, M.Jahazi, Linear Friction Welding of Ti-6Al-4V: Processing, Microstructure, and Mechanical-Property Inter-Relationships, Metallurgical and Materials Transactions A. 36(2005)2149-2164 [4] T.J.Ma, X.J.Zhang, S.Q.Yang, The impact toughness and fracture characteristics of TC4 titanium alloy linear friction welding joint, Journal of Aeronautical Materials. 27(2007)40-44 [5] C.B.Sun, T.C.Zhang, J.L, Research on morphology characteristics and performance of high temperature titanium alloy Ti60 linear friction welding joint, Electric Welding Machine. 38(2008): 1-5 [6] L.Zhou, Metallurgy transmission principle.
BeiJing: Chemical Industry Press, (2009)98-130 [7] O.T.Midling, O.Grong, A process model for friction welding of Al-Mg-Si Alloys and Al-SiC metal matrix composites-I HAZ temperature and strain rate distribution, Acta Metal Materials. 42(1994)1595-1609

After some time, these polymeric materials are not serviceable and are mostly discarded; as a result, significant quantities of discarded gloves are generated.
Experimental Materials.Two different particles size, i.e., S1 (250µm-500µm) and S2 (2-5 cm) of recycled nitrile glove (NBRr) were used in this study.
The materials used in this study are epoxidised natural rubber (ENR 25), recycled nitrile glove (NBRr), N-Tetramethylthiuramdisulfide (TMTD), zinc oxide, stearic acid, sulphur and processing oil.
Advanced material Science and Engineering, 106 (2008), pp. 165-187
Iranian Polymer Journal, 18 (2009), pp. 139-148

Ohashi1 1 Nippon Steel Corporation, Advanced Technology Research Laboratories 20-1 Shintomi, Futtsu, Chiba 293-8511, JAPAN 2 Kwansei Gakuin University, R&D Center for SiC Materials and Processes 2-1 Gakuen, Sanda, Hyogo 669-1337, JAPAN a fujimoto.tatsuo@nsc.co.jp, b ohtani.noboru@kwansei.ac.jp Keywords: PVT growth, Si-C binary phase diagram, Secondary phase.
In other words, an equilibrium state is established: Fig. 5 Possible reaction processes occurring in SiC source material when an appropriate temperature gradient exist in the source material..
As s shown in Fig.5, the higher temperature region of the source materials, for instance, near the lower part of the source material, starts sublimation with a vapor v1(g) generated.
Madar, Materilas Science and Engineering: B, 61-62 (1999) 258-264
[8] E.Pernot, P.P.Rejmánková, M.Anikin, M.Pons, C.Faure, P.Grosse, B.Pelissier, C.Moulin, C.Bernard, R.Mader, FED Journal, 11 (2000) 11-15 (in Japanese).

Introduction Dexterity of construction is now an inseparable part of advances in technology and materials which further facilitate in creating a modern and innovative building.
Powire works optimally when using sago leaves as material for roofing, while orini works optimally when using the material of sago midrib/gaba-gaba/tangge ndawaro.
· Tolaki’s vernacularism in exploiting the natural resource that is sago (leaves and midrib) can be a stimulus for the development of future technology in building materials.
In the future, the development of systems and materials will be further developed and addressed as part of the development of building technology based on local wisdom.
In Journal Of Architecture & Environment (Regol) Vol. 9 No. 1 April 2010.

Introduction The CO2 laser drilling was not restricted by the hardness, strength and brittleness of materials, it adapted to metal materials and nonmetallic materials manufacture, such as ruby, ceramic, diamond, etc.
Vapouration was dominant during the process of material damaging, the liquid phase materials can not be carried out from the hole for the produced metal steam pressure was too low, because the more wider the pulse width the more lower the energy density, as a result the melting materials recondensed on the inner wall, shown in Fig. 8 (the pulse width is 0.6ms).
The value of inlet aperture is minimum while the focus up the surface of the machined materials, and the maximum value of the hole depth can be obtained while the focus at some place under the surface of the machined materials, but the place is different as the machined materials different, on the condition of others parameters of CO2 laser do not change.
Zhang: Laser journal, Vol.24 (2003) No.4, pp.1-3(In Chinese)
Gui: Electronic Components and Materials, Vol.22 (2003) No.3, pp.46-48(In Chinese)

In the last few years some efforts were done in order to extend the application of the process to harder materials such as copper alloys, titanium alloys and carbon and stainless steels, composite materials, among others [5, 6].
Vilaça, Materials and Design 30 (2009) 101-108
Bhadeshia, Progress in Materials Science 53 (2008), 9801023
Saikaly, Journal of Nuclear Materials 367- 370 (2007) 1208-1212
Vilaça, Materials Science and Engineering A 498 (2008) 384-391 [15] B.

The modern science of construction materials should be based on the integrated use of the achievements of petrographic-mineralogical and chemical-technological sciences, for the comparison of processes of formation of rocks with processes of synthesis of artificial silicate materials reveals a certain analogy.
Badalyan, Development of multifunctional building materials based on volcanics.
[9] Alkali activated materials: State-of-the-Art Report / ed. by J.L.
Geopolymer building materials based on industrial waste.
Badalyan, Integrated useofwastefromtheextraction and processing of volcanic raw materials for the production of building materials.

This support has characteristics of large load bearing capacity and strong stability, when contractible cushion between stone material sandwiched, it also a certain degree of shrinkage deformation ability.
Zhang: Discussion on the Soft Rock Roadway; Hei Long Jiang Science and Technology Information, Vol. 36 (2010), P.38
Sun: Design and Construction Guide of Soft Rock Roadway Engineering in China Coal Mine (Science Press, China 2004)
Journal of China Coal Society, Vol. 34 (2009) No.3, P.325
[6] Z.J.Du, G.W.Sun: Support Research and Practice of Soft Rock Roadway under High Stress, Journal of Xi'an University of Science and Technology, Vol.60 (2007) No.9, P.256