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Copyright of Electroplating & Finishing is the property of Electroplating & Finishing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Polymer Materials Science & Engineering is the property of Sichuan University, Polymer Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of High Pressure Physics is the property of Chinese Journal of High Pressure Physics Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Electroplating & Finishing is the property of Electroplating & Finishing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The hybrid reinforced concrete (Hybrid-RC) beams with the combination of new fiber composite materials and steel bars of BFRP (Basalt fiber-reinforced polymer) and SFCB steel-FRP composite bar) are often reinforced with asymmetric reinforcement, which may leads to excessive crack width in the structure. To solve the problem, seven concrete beams were designed. The crack behavior of Hybrid-RC beam with asymmetric reinforcement was investigated. The experimental results show that the equivalent reinforcement ratio of pe and the axial tensile strength ratio of γ between reinforcement and FRP bars have great influence on the crack width of Hybrid-RC beam. For the calculation of the crack width of Hybrid-RC beams, the recommended values of the bond-quality coefficient of kb, using the American Concrete Institute (ACI) code and the Canadian Standard Association (CSA) code are given respectively. [ABSTRACT FROM AUTHOR]

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The current R&D situation of recycling carbon fiber reinforced plastic (CFRP) wastes was illustrated in this article, in terms of several relative technologies and processes introduced by universities; research institutes and companies abroad. Furthermore, some suggestions on how to develop domestic technologies of recycling carbon fibers from CFRP wastes and reuse them were put forward. [ABSTRACT FROM AUTHOR]

According to the ACI440. 3R-04, the tests consisting of 90 glass fiber reinforced plastic (GFRP) rebars in 40 •C,.60 • and 80 •C of the simulated concrete environment for 3. 65 d, 18. 0 d, 36. 5 d, 92. 0 d and 183. 0 d, were conducted to evaluate the compressive properties of GFRP rebars in terms of temperature, corrosion time and SiO2 content of the GFRP rebars. The results reveal that after being exposed to simulated concrete environment for 183. 0 d at 40 •, 60 •C and 80 •C, the compressive strength of GFRP rebars decreases by 29. 59% , 39. 12% and 47. 62% , and the compressive elastic modulus of GFRP rebars decreases by 10. 12%, 12. 47% and 19. 06% , respectively. The micro-formation of the GFRP rebar surface was surveyed by scanning electron microscopy ( SEM) , indicating that the bonds, between fibers and resin of GFRP rebars in the corrosion region become loose, and with the temperature increased, the interfacial debonding between fiber and resin of GFRP rebars become more significant. The change in SiO2 content of the GFRP rebars was studied by X-ray fluorescence spectrometer (XRF). The results show that with the corrosion time increased, the SiO2 content of GFRP rebars under simulated concrete environment shows a decreasing trend. The SiO2 content in GFRP rebars which is 62. 11% before corrosion decreases to 52. 05% , 50. 66% and 47. 65% after being exposed to 40 •C, 60 •C and 80 •C of simulated concrete environment for 183.0 d, respectively. In addition, based on the analysis of XRF, compressive strength prediction model of GFRP rebars under simulated concrete environment was proposed. [ABSTRACT FROM AUTHOR]

Test results of six reinforced concrete (RC) beams strengthened with various fiber reinforced polymer (FRP) are discussed. The strengthening effects of basalt fiber reinforced polymer (BFRP), carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) are compared; the pre-damage and arrangement of U-stirrup anchorage on the strengthening effects are analyzed. The flexural behavior and failure modes of the beams bonded with various FRP are investigated through the experimental data, such as cracking load, yielding load, ultimate load, mid-span deflection and FRP strain. Comparative results show the bearing capacity and ductility of beam strengthened with CFRP are improved to the greatest extent; while the cost performance of BFRP in strengthening is superior to the others. There is little influence of pre-damage on strengthening, and the anchorage along the beam inversely affects the effects of FRP on strengthened beam. [ABSTRACT FROM AUTHOR]

The high hardness of carbon fiber in carbon fiber reinforced plastics (CFRP) leads to quick wear, low durability of drills, and poor machining quality in drilling process. Appling brazed diamond core drill to drilling CFRP can improve drill durability and increase machining quality. In order to optimize the setting of diamond grits on core drill, the diamond grits are orderly set to make core drill, and the maximum undeformed chip thickness are changed through changing the diamond quantity. The influences of maximum unde[ormed chip thickness on thrust force, surface roughness of hole wall and quality of hole entrance and exit are compared under the same machining parameters. The moving model of diamond grits is set up to analyze the forming process of machined surface. The results and analysis show that the drilling quality is influenced by chip storage space and the maximum undeformed chip thickness. If the chip storage space is sufficient, the thrust force decreases and the drilling quality improves with the decreasing maximum undeformed chip thickness. [ABSTRACT FROM AUTHOR]

External confinement by the wrapping of fiber reinforced plastic (FRP) is an efficient technique to increase the loading -- carrying capacity and ductility of concrete column. Several typical stress -- strain models of FRP -- confined concrete column are summarized in this paper, and it is pointed out that the behavior of FRP -- confined concrete column is mainly related to the lateral confinement of FRP to concrete column by the analysis of a large number of experimental results, so the confinement effect coeffficient ξ is introduced. Taking ξ as a main parameter a three portions stress -- strain model of FRP -- confined concrete column is proposed. The model captures the main characteristics of stress -- strain relationship of FRP -- confined concrete column, and the predictions of the model agree well with test data. [ABSTRACT FROM AUTHOR]