Q235钢/导电混凝土在3种典型土壤环境中腐蚀的灰色关联度分析

唐荣茂, 朱亦晨, 刘光明, 刘永强, 刘欣, 裴锋

Gray Correlative Degree Analysis of Q235 Steel/conductive Concrete Corrosion in Three Typical Soil Environments

TANG Rongmao, ZHU Yichen, LIU Guangming, LIU Yongqiang, LIU Xin, PEI Feng

表5 Q235钢腐蚀电流密度和土壤环境因素相关序列

Table 5 Correlated sequence of Q235 steel corrosion current density and soil environmental factors

Sequence X0 X1 X2 X3 X4 X5 X6 X7 symbol Icorr / A·cm-2 Ca2+ / mmol·L-1 Mg2+ / mmol·L-1 Fe3+ / mmol·L-1 Cl- / mmol·L-1 SO42- / mmol·L-1 HCO3- / mmol·L-1 pH Saline-alkali soil 3.770×10-7 0.2500 1.4350 1.3125 0.7100 0.3100 7.6900 8.02 Yellow brown soil 3.819×10-7 0.1216 0.1317 0.1212 0.1760 0.4100 1.2600 7.84 Red soil 2.752×10-6 0.0615 0.0646 0.0086 0.1000 0.3380 0.4200 4.97