Fine aggregate is an important component of self-compacting concrete (SCC), in this study, the effect of sand ratio (fine aggregate weight/total aggregate weight ratio (FA/TA)) on the properties of SCC, namely initial slump flow and cohesiveness of fresh SCC, compressive strength, carbonation depth, chloride ion diffusion coefficient, and damage to SCC under drying-wetting cycles, is investigated. The test results show that the initial slump flow of fresh SCC increases and the consistency of SCC reduces with change in FA/TA ratio from 0 . 33 to 0 . 42. SCC with FA/TA ratio of 0 . 39 has the maximum compressive strength, lowest carbonation depth and lowest chloride ion diffusion coefficient. Moreover, when damage to SCC with various FA/TA ratios under drying-wetting cycles is evaluated, SCCs with various FA/TA ratios are found to have similar behaviour in terms of resistance to damage. Notation a Faraday constant D RCM0 chloride ion migration coefficient (m 2 /s) E 0 dynamic elasticity modulus of SCC at curing period of 28 days E n dynamic elasticity modulus of SCC after dryingwetting cycles of 0, 15, 30, 45 and 60 days F cu0 compressive strength of SCC at curing period of 28 days F cun compressive strength of SCC after drying-wetting cycles of 0, 15, 30, 45 and 60 days H thickness of the specimen (m) T average value of the initial and final temperatures in the anolyte solution (K) t test duration time (s) W 0 weight of SCC at curing period of 28 days W n weight of SCC after varying periods of drying-wetting cycles x d average value of the penetration depth (m)