研究了配合比、矿物掺合料、细骨料对氯氧镁水泥干燥收缩的影响,结果表明,随MgO/MgCl2摩尔比升高氯氧镁水泥干燥收缩增大;掺入粉煤灰导致氯氧镁水泥干燥收缩值增加,而硅灰+粉煤灰对干燥收缩有改善作用;砂的加入使水泥干燥收缩降低显著,而稻壳粉的加入,使干燥收缩加剧。 The effects of mixing ratio, mineral admixtures and fine aggregate on the drying shrinkage of magnesium oxychloride cement were studied. The results show that the drying shrinkage of magnesium oxychloride cement increases with the increasing molar ratio of MgO / MgCl2. The shrinkage value of magnesium and magnesium cement increases, while silica fume and fly ash improve the drying shrinkage. The addition of sand reduces the drying shrinkage significantly, while the addition of rice hull powder increases the drying shrinkage.