The cap-abilites of moisture absorption, moisture releasing and antifreezing of sixteen kinds of mixtures made of two chlorides were tested under natural environment in one day.

• 针对露天矿公路路面扬尘污染问题,进行了喷洒实验,测定了两种卤化物抑尘剂的16个配方在自然环境中昼夜周期吸湿、放湿的能力和抗冻性能,确定出最佳配方。