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A platform for research: civil engineering, architecture and urbanism
Liquid for forming accelerated rust layer of bridge weathering steel and anti-corrosion construction process thereof
The invention discloses a liquid for forming an accelerated rust layer of bridge weathering steel and an anti-corrosion construction process thereof. The anti-corrosion construction process comprisesthe following steps that rust is removed from the bridge weathering steel at the normal temperature outdoors and the relative air humidity of 5%-50%, and the rust removal grade is ST3; hydrochloric acid with the concentration of 90% and distilled water are adopted for preparing a hydrochloric acid solution with the concentration of 4 * 10 < -4 > mol/L for standby application; sulfuric acid with the concentration of 70% and distilled water are adopted for preparing a sulfuric acid solution with the concentration of 1.72 * 10 < -2 > mol/L for standby application; the hydrochloric acid solution with the concentration of 4 * 10 <- 4 > mol/L is sprayed according to the dosage of 380 ml/m < 2 >, or the sulfuric acid solution with the concentration of 1.72 * 10 < -2 > mol/L is sprayed according to the dosage of 380 ml/m < 2 >, and the surface of the bridge weathering steel is waited to be dry; and repeating is conducted for 90 days for four times every day to obtain the accelerated rust layerof the bridge weathering steel.
本发明公开了一种桥梁耐候钢加速锈层形成的液体及其防腐施工工艺，包括：在室外常温下，且空气相对湿度在5～50％之间，对桥梁耐候钢进行除锈，且除锈等级为ST3；采用浓度为90％的盐酸和蒸馏水配制得到浓度为4*10‑4mol/L盐酸溶液，备用；采用浓度为70％的硫酸和蒸馏水配制得到浓度为1.72*10‑2mol/L的硫酸溶液，备用；按380ml/㎡的剂量喷洒浓度为4*10‑4mol/L盐酸溶液，或者，按380ml/㎡的剂量喷洒浓度为1.72*10‑2mol/L的硫酸溶液，等待桥梁耐候钢表面干燥；每日四次，重复90天，得到桥梁耐候钢加速锈层。
Liquid for forming accelerated rust layer of bridge weathering steel and anti-corrosion construction process thereof
The invention discloses a liquid for forming an accelerated rust layer of bridge weathering steel and an anti-corrosion construction process thereof. The anti-corrosion construction process comprisesthe following steps that rust is removed from the bridge weathering steel at the normal temperature outdoors and the relative air humidity of 5%-50%, and the rust removal grade is ST3; hydrochloric acid with the concentration of 90% and distilled water are adopted for preparing a hydrochloric acid solution with the concentration of 4 * 10 < -4 > mol/L for standby application; sulfuric acid with the concentration of 70% and distilled water are adopted for preparing a sulfuric acid solution with the concentration of 1.72 * 10 < -2 > mol/L for standby application; the hydrochloric acid solution with the concentration of 4 * 10 <- 4 > mol/L is sprayed according to the dosage of 380 ml/m < 2 >, or the sulfuric acid solution with the concentration of 1.72 * 10 < -2 > mol/L is sprayed according to the dosage of 380 ml/m < 2 >, and the surface of the bridge weathering steel is waited to be dry; and repeating is conducted for 90 days for four times every day to obtain the accelerated rust layerof the bridge weathering steel.
本发明公开了一种桥梁耐候钢加速锈层形成的液体及其防腐施工工艺，包括：在室外常温下，且空气相对湿度在5～50％之间，对桥梁耐候钢进行除锈，且除锈等级为ST3；采用浓度为90％的盐酸和蒸馏水配制得到浓度为4*10‑4mol/L盐酸溶液，备用；采用浓度为70％的硫酸和蒸馏水配制得到浓度为1.72*10‑2mol/L的硫酸溶液，备用；按380ml/㎡的剂量喷洒浓度为4*10‑4mol/L盐酸溶液，或者，按380ml/㎡的剂量喷洒浓度为1.72*10‑2mol/L的硫酸溶液，等待桥梁耐候钢表面干燥；每日四次，重复90天，得到桥梁耐候钢加速锈层。
Liquid for forming accelerated rust layer of bridge weathering steel and anti-corrosion construction process thereof
一种桥梁耐候钢加速锈层形成的液体及其防腐施工工艺
ZHANG GUOXUE (author) / FAN SHIQIANG (author) / LIU YAN (author) / ZHAI XIAOLIANG (author) / LIANG ZHITAO (author)
2021-03-16
Patent
Electronic Resource
Chinese
Corrosion Process and Rust Formation of Weathering Steel
| British Library Online Contents | 2013
Progress in Research on Rust Layer of Weathering Steel
| British Library Online Contents | 2006
| British Library Online Contents | 2007