High alumina based plastic refractories were prepared using bauxite particles and fines,and clay as main starting materials. Influences of three binders including water,saturated aluminium sulfate solution, mixed solution of saturated aluminium sulfate and aluminium dihydrogen phosphate on properties of the refractories were investigated. The results show that;the refractory,with saturated aluminium sulfate solution has the longest shelf life,and that with the mixed solution has the shortest shelf life;the cold compressive strength of the dried refractories bonded with saturated aluminium sulfate solution or the mixed solution is higher than that of the dried refractory with water bonded;the bulk densities and values of refractoriness under load(0.5% ,1% ,2% of deformation) of the three refractories are similar.%以铝矾土颗粒、细粉及黏土为主要原料,研究了自来水、饱和硫酸铝溶液、饱和硫酸铝溶液+磷酸二氢铝溶液3种结合剂对高铝可塑料性能的影响.结果表明:以硫酸铝为结合剂的保质期最长,以磷酸二氢铝+硫酸铝为结合剂的保质期最短；分别以硫酸铝和硫酸铝+磷酸二氢铝为结合剂的试样烘干后耐压强度高于以水为结合剂的；3种结合剂结合试样的体积密度和荷重软化温度(变形量分别为0.5％、1％、2％)相差不大.
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