The use of ordinary Portland cement (PC) as the principal binder in concrete brings with it significant environmental challenges through the consumption of fossil fuels and emission of carbon dioxide (CO₂) during cement production. Concrete specimens made with an alkali activated cementitious material (AACM) produced from an alternative binder and conventional Portland cement concrete were exposed to corrosion inducing environments for 1750 days to monitor their relative durability. AACM concrete shows higher corrosion potential E_corr and corrosion current densities I_corr than PC concrete due to a reducing environment around the steel surface in AACM concrete, caused by high sulfide concentration in the pore solution. Corrosion resistance of the AACM concretes increases with increasing molarity of the alkali activator, at a constant liquid to binder ratio. The threshold Cl⁻/OH⁻ value for pitting corrosion initiation in the AACM concrete is between 2.1 and 2.8 compared with 1.08 for the control PC concrete. The AACM concrete evaluated in this study showed greater resistance to chloride induced corrosion than the PC concrete.

普通波特兰水泥（PC）作为混凝土中的主要粘合剂的使用，在水泥生产过程中通过消耗化石燃料和排放二氧化碳（CO ₂）带来了巨大的环境挑战。将由替代粘合剂和传统波特兰水泥混凝土制得的碱活化胶凝材料（AACM）制成的混凝土试样暴露于腐蚀诱导环境1750天，以监测其相对耐久性。AACM混凝土显示出更高的腐蚀电势E _corr和腐蚀电流密度I _corr与PC混凝土相比，由于AACM混凝土中钢表面周围的环境减少，是由于孔隙溶液中的硫化物浓度高所致。AACM混凝土的耐腐蚀性随着碱活化剂摩尔浓度的增加而增加，在恒定的液对粘结剂比率下。阈氯^- / OH ^-在AACM混凝土点蚀引发值是2.1和2.8之间以1.08为控制PC混凝土相比。在这项研究中评估的AACM混凝土显示出比PC混凝土更高的抗氯化物腐蚀的能力。