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Analysis And Treatment Of Leaching Salt Corrosion Of Reinforced Concrete Structures

Posted on:2014-12-14Degree:MasterType:Thesis
Country:ChinaCandidate:L Z LiFull Text:PDF
GTID:2252330425965053Subject:Transportation
Abstract/Summary:PDF Full Text Request
This article study on the corrosion of the structures and lead to the northwest aridclimate, strong light, high evaporation of Hetao area is relatively less, especially the researchtopic in Hetao area of salt content quite drained and long-term immersion structures almostzero as the background, the corrosion analysis and treatment study leaching salt reinforcedconcrete structures are studied.In order to avoid large-scale construction climax after climax in large-scale repair, roadand bridge construction stage should pay attention to structure quality control, according tothe different categories of erosion environment, proposes the structure form, size, materials,construction and other durability design requirements. Highway structures usually adopt the"vibration, corrosion resistance, corrosion" three character principle, its purpose is to takemeasures as far as possible to make the structure stress area does not suffer from saltcorrosion damage, that is to say as long as protection layer does not crack, salinenon-invasive, so the stress area is safe. Partition of salt saline soil environment in order toeffectively contact with the concrete way, should be adopted for saline land area for concretecuring protection of anticorrosive coatings. For hetao build strong erosion area, the salinesoak the pier, collar beam, such as concrete, in addition to the increase of concrete strengthgrade, the high performance concrete must be used. Weak corrosion area, will not be usinghigh-performance concrete, but the pier concrete strength grade improve level, the referencearea corresponding structures, strong corrosion protective layer thickness casting after thecompletion of the brush anticorrosive coatingsIn this paper, through the analysis and research of environment of leaching saltstructures, research status at home and abroad, from the start and development trend,combined with the example, anticorrosion design structures in Hetao area has been buildingprojects, relying on the evidence at the scene investigation and test data, in-depthunderstanding of the cause of corrosion and the failure mechanism of leaching salt structures,and to make a reasonable evaluation of disease, puts forward the measures to be taken toprevent corruption in the construction project design and construction projects have beenespecially has eroded the structure of the project provide support for repair, which has animportant guiding meaning structures anticorrosive processing work for road leaching salt.
Keywords/Search Tags:reinforced concrete, Leaching Salt, corrosiveness resistance, experiment, design
PDF Full Text Request
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