采用电化学除氯技术（ECE）处理混凝土，测试了钢渣混凝土中自由氯离子含量以及钢筋混凝土界面黏结强度，并用XRD衍射对钢筋混凝土界面进行物相分析，研究了钢渣对混凝土除氯效率以及钢筋混凝土界面黏结性能的影响。结果表明：随着钢渣掺量增加，除氯效率先降低后提高，在电流密度3 A/m²、通电时间30 d条件下，不同钢渣掺量（10%，20%，30%，40%）混凝土的除氯效率为29.5%~48.5%，低于普通硅酸盐水泥（OPC）混凝土（51.7%）；ECE处理会降低钢筋混凝土界面黏结强度，钢渣掺量低于30%混凝土的黏结强度损失率低于OPC混凝土，而钢渣掺量高于30%混凝土的黏结强度损失率迅速提高；ECE处理后，钢筋混凝土界面C-S-H含量降低，Ca （OH）₂晶体增多，随着钢渣掺量的增加，Ca （OH）₂晶体增加的趋势减缓。

Electrochemical chloride extraction (ECE) technology was used to treat concrete, the free chloride ion content in steel slag concrete and the bonding strength of reinforced concrete interface were tested. XRD diffraction was used to analyze the phase of the reinforced concrete interface, and the effect of steel slag on the dechlorination efficiency of concrete and the bonding performance of the reinforced concrete interface were studied. The results showed that with the increase of steel slag content, the efficiency of chlorine removal first decreased and then increased. Under the conditions of current density of 3 A/m² and power-on time of 30 d, the dechlorination efficiency of concrete with different steel slag content (10%, 20%, 30%, 40%) was 29.5%-48.5%, which was lower than that of ordinary Portland cement (OPC) concrete (51.7%). ECE treatment would reduce the bond strength of the reinforced concrete interface. The bond strength loss rate of concrete with steel slag content of less than 30% was lower than that of OPC concrete, while the bond strength loss rate of concrete with steel slag content of more than 30% increased rapidly. After ECE treatment, the content of C-S-H at the interface of reinforced concrete decreased, and Ca(OH)₂ crystals increased. With the increase of steel slag content, the increasing trend of Ca(OH)₂ crystals slowed down.