CAJ | 학술논문

对带钢筋的普通混凝土及引气混凝土试件进行抗冻融循环试验，在不同冻融损伤程度下对试件进行氯离子侵蚀试验。利用半电池电位法和线性极化法分别测定经过不同冻融循环次数下混凝土试件内部钢筋的电位和腐蚀电流密度，从而定量地确定混凝土内部钢筋的锈蚀情况。研究结果表明：向混凝土内部掺入一定比例引气剂，可以提高混凝土的抗冻性能，从而增强其在腐蚀环境下抗钢筋锈蚀能力，提高了混凝土的耐久性能；对试件进行劈裂试验后，钢筋的实际锈蚀情况与利用由化学方法测定结果一致。
대대강근적보통혼응토급인기혼응토시건진행항동융순배시험，재불동동융손상정도하대시건진행록리자침식시험。이용반전지전위법화선성겁화법분별측정경과불동동융순배차수하혼응토시건내부강근적전위화부식전류밀도，종이정량지학정혼응토내부강근적수식정황。연구결과표명：향혼응토내부참입일정비례인기제，가이제고혼응토적항동성능，종이증강기재부식배경하항강근수식능력，제고료혼응토적내구성능；대시건진행벽렬시험후，강근적실제수식정황여이용유화학방법측정결과일치。
The freeze-thaw cycle tests of the ordinary concrete specimen and the air entraining concrete specimen with steel were carried out ,and the chloride corrosion tests under different freeze-thaw damage degrees were done . The potential values and corrosion current density of steel in concrete specimens were determined under different freeze-thaw cycle times by using half-cell potential method and linear polarization method ,then the steel corrosion condition in concrete was qualitatively determined . The study results show that adding air entraining agent can improve the anti-freeze property of concrete ,promote the ability of resistance to steel corrosion , and prolong the durability of concrete structure .After specimen splitting test ,the actual steel corrosion condition has the same result with the result by chemical approach .