Search results

Compared with costly quick repair material as well as road renovation and expansion engineering, materials selected by precast assembling slabs are traditionally ordinary Portland cement and steel bars, being able to significantly reduce maintenance costs.
In the use of fast-setting repair material for maintenance construction, even a little difference in curing conditions may have a major impact on the development of strength, especially on the formation of early strength, if serious, even causing repair failure.
Through the lap joint of the dowel bar buried in prefabrication of slabs and the reserved dowel bar slot, then fill dowel bar slot with fast patching material, not only being able to realize load transmission ability at joints, but also being able to ensure the smoothness of assembled pavement.
Western China Communications Science & Technology, (03)2006:11-16
China Journal of Highway and Transport, (1)2000: 56-60

Short sulfate process was developed to produce TiO2 white by using unconcentrated industrial TiOSO4 solution as raw material.
Our previous work had investigated some hydrolysis factors influence on the structure and pigment properties of TiO2 via self-generated seed process by using concentrated TiOSO4 solution as raw material [17].
Herein we reported using the low concentration TiOSO4 solution as raw material, obtained by acidolysizing of titanium slag and ilmenite, then leaching, purifying and without concentrating, TiO2 white pigment was prepared by hydrolyzing, washing, doping and calcining via self-seeded route.
Acknowledgments This work has been supported by the National Natural Science Foundation of China (50804025); Key Technology R&D Program of Sichuan Province, China (2011GZ0303); Scientific Research Industrialization Projects of Panzhihua, China (2011CY-G-23).
D.Moggridge: Journal of Cryst.

Reliable in structure, can play the properties of materials. 4.
According to the calculating assumption, the web member is two force rods, the web member adopt reinforced concrete materials, the cross section shape is rectangle.
Based on the present situation, it’s suggested the shaft materials instead of steel in the optimal design. 3.
Reached the purpose with new materials, new technology. 4.
It will be the further research’s emphasis that the tensile web member replaced for steel structure material, in order to simplify construction, reduce weight structure self-respect, play material characteristics.

Box: 34149 – 16818 2School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, North Karegar Street, Tehran, Iran 3Department of Mining, and Materials Engineering, McGill University, University St., H3A 2A7, Montreal, QC, Canada asmk.hosseini@alumni.ut.ac.ir, bzareih@ut.ac.ir, csteve.yue@mcgill.ca Keywords: Intercritical deformation, low-silicon, TRIP-assisted steels, retained austenite, thermomechanical process Abstract.
Materials and Experimental Techniques A cast ingot of steel with a composition listed in Table 1 was hot-rolled to a final thickness of 14 mm following a classical rolling procedure at CANMET, Ottawa.
All hot deformation programs were carried out on a computerized Materials Testing System, adopted for compression test.
LePera, Journal of Metals, 1980, p.38 [11] S.
Bhadeshia, Progress in Materials Science, Vol. 29 (1985), p.321 [18] P.

When CAF analysis is made, the model should be simplified, as follows. 3) Modeling of bent axle There are various materials of axle, the design should consider the requirements on strength, stiffness and wear resistance of axle.
The common materials of axle are 35, 45 and 50 high-quality carbon steel.
So the strength of materials and volume of materials should be considered for design.
Combined with practice of mechanical engineering, the paper uses 40CrNi plate, which not only saves materials, but also is easy for process.
[3] Ren Peng, Yu Xiaohong, Wang Xiaoqun, Shearing process of partially rocking flying shear and optimization design of mechanical parameters [J], Journal of Science Technology, 2006,22(2):103~106

In order to improve the economic efficiency of the SG, different types of materials are used in different sections of the heat exchange tube.
Experimental Materials and Methods The chemical composition of T22 heat exchange tubes used in this study is listed in Table 1.
Materials chemistry and physics, 2008, 109:212-216
Journal of Petrochemical Universities,2012,25,3:64-66
Fundamentals of Material Science.

This is due to the differences in detector material and operating wavelength.
This occurs if the material is too responsive, i.e.
K is large, or if the temperature of the material is high.
However, the work provides and an encouraging indication that this technique can provide a means of temperature correction that will be particularly useful in long-term fatigue test of damaging materials where temperature increases occur as a result of viscoelastic material behaviour.
Stanley, Journal of Strain Analysis, Vol. 33 (1998) 93-104

Introduction The demand for composite materials has been growing over the past decades, especially in the automotive industry for the pursue of lightweight and high performance applications [1].
Post-Forming Experiments 2.1 Experimental Materials and Setup Straight CF/PA6 tubes were manufactured at AFPT GmbH via TP-ATP using Celanese Celstran® CFR-TP PA6 CF60-01 tapes.
Tornero, Composite materials are more present today than ever before in cars, Reinforced Plastics. 59 (2015) 131
Sultan, 1 - Processing of hybrid polymer composites—a review, Hybrid Polymer Composite Materials. (2017) 1–22
Nakai, Development of bend-forming technologies on CFRTP tube, 21st International Conference on Composite Materials. (2019) 6

Meanwhile, with the social and technological progress, improving the transport network within and outside the region, GIS data and fire service data more complete, information platform to establish and continually upgrade, enhance the fire brigade's mobile operations, inter-regional fire Rescue operations have been with the initial material conditions.
Rescue resource information, including the distribution of emergency relief sector (including the fire station, medical first-aid stations, professional rescue teams and other rescue units), rescue units, rescue capability (for the number of different disasters, combat formation), the distribution of relief materials and quantity ( including fire-fighting agents, engineering machinery, emergency medicine, mobile air source, etc.).
Inter-regional fire and rescue mobilization system information-sharing model to achieve.In the "Eleventh Five-Year" National Science and Technology Support Program project on "inter-regional scene of the fire power of mobilization and organization and command technology research", the use of these technologies to build a WebGIS spatial information-sharing platform - "the power to mobilize inter-regional scene of the fire system."
References [1] Li Jianhua, Kang Qingchun and Shang Kaoding: Fire Tactical (Press the masses,China,2004), p. 160-191 [2] FENG Guobing: Fire Science and Technology, Vol 27 (2008) No.5, p.356-360 [3] ZHU Liping and FENG Guobing: Journal of Safety and Environment,Vol 4(2004) No.3, p.23-27 [4] Zhu Liping: Dynamic three-dimensional ring of fire and rescue (Press the masses,China,2007), p.19-42 [5] Ren Jianhui, Xun Lin and Cai Hangbiao: Journal of Chengdu University, Vol. 28(2009) [6] Dujuan: Modern Information , Vol 29(2009) [7] You Xuchu and Yang Guoqiang: Computer and Modernization, Vol 9(2007) [8] Zhang Fei and Zhang Jian: Computer Engineering and Design , Vol. 30(2009) [9] ESRI: ArcIMS 9 Architecture and Functionality，(Press ESRI,USA,2004) [10] Li Chiyuan: The 2nd International Conference on e-Business and Information System Security (Wuhan, China, May 21-23, 2010), p.645-648

In essence, this concept is a mathematical approach to dealing with materials where part of the material has undergone an ‘instantaneous’ change in properties, such as in a phase transformed zone or a region of plasticity.
As noted above, the model is independent of the mechanisms of plastic deformation and therefore potentially applicable to a variety of materials.
It is also true, however, that the concept of using an elastically-derived parameter to characterise crack growth in ductile materials, where almost invariably plastic deformation processes are a pre-requisite of crack extension, has had a vexed history.
Paris struggled to get his initial papers on the subject published in main-stream journals [7], whilst plasticity-induced crack tip shielding was identified as a modifying influence by Christensen [8] and Elber [9] some 40 years ago.
Patterson, ‘Thermoelastic stress analysis of fatigue cracks subject to overloads’, Fatigue and Fracture of Engineering Materials and Structures, in press (2010)