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[求助]
各位帮忙翻译几句话
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各位帮忙翻译几句话: 1) 刚剥离出来的新鲜铁锈呈黑色夹杂着红色和淡绿色，在空气中暴露后淡绿色消失. 2) 阳极区释放的电子通过钢筋流向阴极区，同时生成Fe2+与附近的Cl-离子结合生成易溶的中间相铁-氯络合物，随后从钢筋阳极区向混凝土孔隙迁移，分解为褐色的Fe(OH)2，并沉淀在阳极区周围，同时放出H+和Cl-，它们又回到阳极区，使阳极区附近孔隙液局部酸化，Cl-再带出更多的Fe2+，这样Cl-加速钢筋锈蚀。 |
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whuzhouwei
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3楼2012-07-28 19:22:30
whuzhouwei
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dxw7610: 金币+5, ★有帮助 2012-07-31 11:33:39
dxw7610: 金币+5, ★有帮助 2012-07-31 11:33:39
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刚剥离出来的新鲜铁锈呈黑色夹杂着红色和淡绿色，在空气中暴露后淡绿色消失. Fresh rust that stripped off presents dark color mixed with red and light green, and the light green disappears once exposed in air. 2) 阳极区释放的电子通过钢筋流向阴极区，同时生成Fe2+与附近的Cl-离子结合生成易溶的中间相铁-氯络合物，随后从钢筋阳极区向混凝土孔隙迁移，分解为褐色的Fe(OH)2，并沉淀在阳极区周围，同时放出H+和Cl-，它们又回到阳极区，使阳极区附近孔隙液局部酸化，Cl-再带出更多的Fe2+，这样Cl-加速钢筋锈蚀。Electrons released from the positive column flow to the negative column through the steel bar, and Fe2+ created in positive column and the Cl- nearby combine together which produces diffluent Iron chlorine complex in intermediate phase. Then the complex drifts toward the holes of the concrete from the positive column in the steel bar, and it decomposes to Fe(OH)2 in brown, which is separated around the positive column and releases H+ and Cl+ at the same time. After then, the H+ and Cl- come back and Local acidification occurs around the pore fluid, which attribute to the increase of the Fe2+ brought by Cl-. Thus Cl- accelerate the corrosion of the steel bar. |
2楼2012-07-28 19:19:59
lxwqd
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dxw7610: 金币+10, 翻译EPI+1, ★★★很有帮助 2012-07-31 11:33:07
dxw7610: 金币+10, 翻译EPI+1, ★★★很有帮助 2012-07-31 11:33:07
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1) The color of fresh rust just stripped off is black mingled with red and light green which would fade away after exposed to air. 2) Anode region discharge electrons which flow through steel bar into cathod space, and produce Fe2+ simultaneously. Fe2+ then combine with nearby Cl- ion, forming intermediate phase ferrum-cholorine complex. After that, the complex migrate from steel bar anode region to the void space in concrete where it decompose into brown Fe(OH)2 which precipitate around the anode region. The H+ and Cl- ions released by aforementioned process then must come back into the anode region, acidizing the aqueous solution in the void space near anode region. The Cl- ion then would bring out more Fe2+ ion over and over again in this way, that would accelerate the corrosion process of the reinforcing steel bar. |
4楼2012-07-29 20:18:11
