CAJ | 학술논문

利用离子迁移实验和混凝土表面电阻率两种实验方法原位测试5种钢筋混凝土箱梁保护层混凝土的氯离子扩散系数和混凝土表面电阻率，讨论原位测试结果与实验室里ASTM C1202电通量测量值的相关性，建立保护层混凝土氯离子扩散系数与混凝土表面电阻率之间的数学关系式，利用原位测试的氯离子扩散系数评价了钢筋混凝土箱梁在海洋环境条件中的使用寿命。研究结果表明，在稳态下混凝土结构表面保护层混凝土的氯离子扩散系数和混凝土表面电阻率与6h电通量具有较好的相关性，可以采用离子迁移实验和混凝土表面电阻率两种实验方法进行在原位测试和评价混凝土的渗透性，混凝土表面电阻率在工程应用上更为简便。
이용리자천이실험화혼응토표면전조솔량충실험방법원위측시5충강근혼응토상량보호층혼응토적록리자확산계수화혼응토표면전조솔，토론원위측시결과여실험실리ASTM C1202전통량측량치적상관성，건립보호층혼응토록리자확산계수여혼응토표면전조솔지간적수학관계식，이용원위측시적록리자확산계수평개료강근혼응토상량재해양배경조건중적사용수명。연구결과표명，재은태하혼응토결구표면보호층혼응토적록리자확산계수화혼응토표면전조솔여6h전통량구유교호적상관성，가이채용리자천이실험화혼응토표면전조솔량충실험방법진행재원위측시화평개혼응토적삼투성，혼응토표면전조솔재공정응용상경위간편。
With Permit ion migration experiments and concrete surface resistivity test the chloride ion diffusion coeffi-cient and the concrete surface resistivity of the five concretes were measured and the relation between in situ results and ASTM C1202 electric flux for 6 h in the laboratory were analyzed.The mathematical relationship between a protective layer of concrete chloride ion diffusion coefficient and surface resistivity of concrete was established, and the service life of reinforced concrete beams was calculated by in situ testing results under the marine environment.The results showed that there was good correlation between the concrete surface resistivity of the concrete cover, in the steady state the ac-tion of chloride diffusion coefficient and 6 h charge.Permit experiments and the concrete surface resistivity were tested and evaluated the permeability of the concrete in situ, and concrete surface resistivity was easy in engineering applica-tions.