CAJ | 학술논문

试验研究了混凝土不同的养护工况、表面施工工况对其抗盐冻性能的影响，对比了暴露养护和标准养护对混凝土抗盐冻性影响的异同，研究了重复加卸载对暴露养护的混凝土抗盐冻性的影响。结果表明：混凝土养护时保证其初次受盐冻前不处于干燥收缩状态，表面施工避免表层混凝土的含气量损失，可以提高混凝土的抗盐冻性能；重复荷载作用下混凝土抗盐冻性能会逐步降低。
시험연구료혼응토불동적양호공황、표면시공공황대기항염동성능적영향，대비료폭로양호화표준양호대혼응토항염동성영향적이동，연구료중복가사재대폭로양호적혼응토항염동성적영향。결과표명：혼응토양호시보증기초차수염동전불처우간조수축상태，표면시공피면표층혼응토적함기량손실，가이제고혼응토적항염동성능；중복하재작용하혼응토항염동성능회축보강저。
Different curing conditions and construction methods of concrete surface influence on frost-salt resistance of concrete were researched.The similarities and differences of frost-salt resistance of concrete by exposed curing and standard curing were compared.And the effects of repeated loading-unloading on frost-salt resistance of concrete with exposed curing were illustrated.The results showed that to ensure the concrete not be in drying shrinkage state by curing before the initial frost-salt,and to be avoid the loss of air content of the sur-face of concrete by surface construction can improve the frost-salt resistance of concrete.The frost-salt resistance of concrete frost will be gradually reduced under the repeated loading.