本文選題：鋼筋混凝土 + 氟碳涂層　； 參考：《表面技術(shù)》2017年12期

【摘要】：目的研究不同氟碳涂層體系對(duì)海洋環(huán)境下混凝土抗氯離子滲透性能的影響規(guī)律及作用機(jī)理。方法以溶劑型氟碳涂層和水性氟碳涂層為研究對(duì)象,開(kāi)展了兩種溶劑型氟碳涂層體系和一種水性氟碳涂層體系的研究,即環(huán)氧底漆-溶劑型氟碳面漆、環(huán)氧底漆-聚氨酯中層漆-溶劑型氟碳面漆及水性環(huán)氧底漆-水性氟碳面漆。通過(guò)氯離子電遷移快速試驗(yàn),研究涂覆這三種氟碳涂層體系的混凝土抗氯離子滲透性能。采用干濕循環(huán)試驗(yàn)?zāi)M浪花飛濺區(qū),通過(guò)混凝土抗氯離子侵蝕試驗(yàn)及掃描電鏡觀察試驗(yàn),研究涂層對(duì)混凝土在海洋環(huán)境浪花飛濺區(qū)的防腐性能。結(jié)果氯離子電遷移快速試驗(yàn)測(cè)得的氯離子擴(kuò)散系數(shù)表明,氟碳涂層體系作用下,混凝土氯離子擴(kuò)散系數(shù)降低。干濕循環(huán)試驗(yàn)36 d后,通過(guò)掃描電鏡觀察發(fā)現(xiàn)這兩種溶劑型氟碳涂層體系表面仍然致密,水性氟碳涂層體系表面出現(xiàn)裂縫。結(jié)論溶劑型和水性氟碳涂層體系均能提高混凝土抗氯離子滲透性,溶劑型氟碳涂層體系在海洋浪花飛濺區(qū)更耐久,更適用于該環(huán)境下的混凝土腐蝕防護(hù)。
[Abstract]:The influence and mechanism of concrete under the marine environment the resistance to chloride ion permeability in different fluorocarbon coating system. The method of solvent type fluorocarbon coatings and waterborne fluorocarbon coating as the research object, carried out the research of two kinds of solvent type fluorocarbon coating system and a waterborne fluorocarbon coating system, namely epoxy primer solvent fluorocarbon paint, epoxy primer, polyurethane intermediate paint - solvent type fluorocarbon paint and waterborne epoxy primer - Waterborne Fluorocarbon topcoat. The chloride ions migration rapid test, study the three kinds of coated fluorocarbon coating system of concrete resistance to chloride ion permeability. The dry wet cycle test simulation of splash zone, through the concrete resistance to chloride ion erosion test and SEM observation, to study the coating on corrosion performance of concrete in marine environment in the splash zone. The results of chloride ion electromigration rapid test measured chloride Show that the diffusion coefficient, fluorocarbon coating system under the action of the chloride diffusion coefficient of concrete decreases. The dry wet cycling experiment after 36 D, found that two kinds of solvent type fluorocarbon coating system still dense surface was observed by scanning electron microscope, the cracks of waterborne fluorocarbon coatings system. Conclusion the surface of solvent based and waterborne fluorocarbon coating system can improve the anti the chloride ion permeability of concrete, solvent type fluorocarbon coating system in the splash zone is more durable, concrete corrosion protection is more suitable for the environment.

【作者單位】： 青島理工大學(xué)土木工程學(xué)院;中國(guó)科學(xué)院海洋研究所;同濟(jì)大學(xué)材料學(xué)院;
【基金】：國(guó)家杰出青年科學(xué)基金(51525903) 國(guó)家自然科學(xué)基金項(xiàng)目(51401185)~~
【分類(lèi)號(hào)】：TU528
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本文編號(hào)：1745469