The addition of additives is a main factor influencing the workability of self-compacting concrete.Based on laboratory tests,the effects of non-shrinkage additives’ ZM content on the performance of self-compacting concrete for different mixture ratios are studied.Test results show that the water-reducing efficiency improves with the increase of ZM content.The saturation point of water-reducing of ZM content is within the range of 16% to 18%. The mechanical property and concrete performance of SCC are optimal when the ZM content is between 14% and 16%.