土木外文翻譯--通過再堿化技術(shù)增加鋼筋混凝土的使用-資料下載頁(yè)
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【正文】 t tubes corrosiontime (months) 2 4 6 8 10 11Ecorr (mV) 298 375 462 512 560 620According to the registered values and the test tubes physical states which became ochre with longitudinal fissures, it was estimated that the test tubes reinforcement was corroded.It is necessary to remark that to perform the realkalization technique。 an anode was redesigned and elaborated. The anode with an AISI 316, φ steel wire forming a mesh located between two layers made of gauze and cellulose fibre pulp. The tension and current source: 1A /40 V. The selected electrolyte is a LiOH solution. Uptodate there are no enough test values to determine all the advantages of this technique. It shows a simplified scheme of the realkalization process a reinforced concrete cylindrical test tube.4. Partial conclusions.In general, the inspected school buildings were from fairly accepted to uninhabited conditions state.The school sampled has structural elements with severe corrosion in its iron columns resulting from negative contents such as, sulphates, chlorides and concrete carbonation, as well.As the drainage system fails to be appropriate for the area, since it has very high phreatic levels, it will be convenient to build new system to minimize the fluctuations of the phreatic layer, so as to avoid salts concentrations.Applying the artificial aging technique to test tubes, it was possible to create the required conditions to simulate the real state of the reinforced concrete in the columns of the sample under study.It is important to emphasize that it was possible to simulate the conditions of the buildings columns, so as to apply the realkalization at laboratory level, in order to improve the technique implementation and get better results when working with the real columns.References.ASTM C876 Standard Test Method for Half Cell Potentials of Reinforcing Steel in Concrete, Annual Book of ASTM Standards, Vol. , 1983.Cyted, “Manual de inspecci243。n, evaluaci243。n y diagn243。stico de corrosi243。n en estructuras de hormig243。n armado”. Brasil, 1997Feli, S. y Andrade, C “Manual de Inspecci243。n de Obras Da241。adas por Corrosi243。n de Armaduras” Centro Nacional de Investigaciones Metalrgicas (CENIM) y el Instituto Eduardo Torraja de Ciencias de la Construcci243。n, Madrid, .Rodr237。guez J, Ortega ., Garc237。a . “Medida de la velocidad de corrosi243。n de las armaduras en estructuras de hormig243。n, mediante un equipo desarrollado dentro del proyecto Eureka401” Hormig243。n y Acero 1993.Solorza, B。 Ocampo, I。 Vuanello, O. “Corrosi243。n Del Acero En Estructuras De Hormig243。n Armado En Zonas De Revenici243。n” 15170。 Reuni243。n T233。ica. Seminario De Hormigones Especiales. Santa Fe Argentina 2003Sturm y . Kosmatka, Detecting Carbonation, Concrete Technology Today, marzo de 1991.
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