發(fā)布時(shí)間：2018-05-13 03:11

  本文選題：溫差發(fā)電 + 混凝土模擬孔隙液��； 參考：《建筑材料學(xué)報(bào)》2015年01期

【摘要】：采用溫差發(fā)電片作為電源,混凝土模擬孔隙液作為介質(zhì),研究溫差發(fā)電應(yīng)用于鋼筋陰極保護(hù)的可行性.結(jié)合半電池電位、線性極化、Tafel曲線和電化學(xué)噪聲,分析了溫差發(fā)電單元對(duì)鋼筋進(jìn)行陰極保護(hù)的效果.結(jié)果表明:溫差發(fā)電單元具有與直流電源相同的電學(xué)性能,內(nèi)阻不會(huì)隨著兩端溫差變化而明顯變化;在陰極保護(hù)系統(tǒng)中溫差發(fā)電單元具有很好的穩(wěn)定性,實(shí)施陰極保護(hù)可以使鋼筋電位負(fù)移至保護(hù)電位;陰極保護(hù)后鋼筋的腐蝕速率大大減小,從腐蝕狀態(tài)進(jìn)入熱力學(xué)穩(wěn)定狀態(tài)而得到有效保護(hù).
[Abstract]:The feasibility of applying thermoelectric power generation to cathodic protection of steel bar is studied by using thermoelectric plate as power source and concrete simulated pore fluid as medium. Combined with half-cell potential, linear polarization Tafel curve and electrochemical noise, the cathodic protection effect of thermoelectric unit on steel bar is analyzed. The results show that the thermoelectric unit has the same electrical performance as the DC power supply, and the internal resistance does not change obviously with the temperature difference between the two ends, and the thermoelectric unit has good stability in the cathodic protection system. After cathodic protection, the corrosion rate of steel bar is greatly reduced, and the corrosion rate of steel bar is reduced greatly, and the effective protection is obtained from the corrosion state to the thermodynamically stable state.
【作者單位】： 同濟(jì)大學(xué)先進(jìn)土木工程材料教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(50978200)
【分類號(hào)】：TU528

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