钙           基           膨           润           土   
   用途：   
   主要用于铸造型砂、石棉保温材料中作为粘结剂；放射性废物吸收剂；农药中作载体或稀释剂、杀虫剂；钻井泥浆冲洗液。   
   铸造性能：   
 
     
         
             
               项目指标级别   
             
             
               热湿拉强度   
             
             
               湿压强度   
             
             
               胶质价   
             
             
               膨胀倍数   
             
             
               200    目通过量   
             
             
               含水率   
             
             
               吸兰量    g/100g    土   
             
         
         
             
               Mpa   
             
             
               Mpa   
             
             
               ％   
             
             
                 
             
             
               ％   
             
             
               ％   
             
             
                 
             
         
         
             
               一级   
             
             
               ≥    18   
             
             
               >0.49   
             
             
               ≥    70   
             
             
               ≥    12   
             
             
               98   
             
             
               ≤    12   
             
             
               39   
             
         
         
             
               二级   
             
             
               ≥    16   
             
             
               >0.3   
             
             
               ≥    60   
             
             
               ≥    10   
             
             
               95   
             
             
               ≤    14   
             
             
               38   
             
         
     
 
   泥浆性能：   
 
     
         
             
               项目指标级别   
             
             
               造浆率   
             
             
               粘度   
             
             
               失水量   
             
             
               含砂量   
             
             
               粒度   
             
             
               含水量   
             
             
               胶质价   
             
             
               吸兰量   
             
             
               膨胀倍数   
             
         
         
             
                 
             
             
               (    ㎡    /T)   
             
             
               (op)   
             
             
               (ml)   
             
             
               (％)   
             
             
               (    目    )   
             
             
               (％)   
             
             
               (％)   
             
             
               g/100g    土   
             
             
                 
             
         
         
             
               一级   
             
             
               >16   
             
             
               ≥    15   
             
             
               <13   
             
             
               ≤    0.5   
             
             
               200   
             
             
               <10   
             
             
               <70   
             
             
               39   
             
             
               >10   
             
         
         
             
               二级   
             
             
               >12   
             
             
               ≥    15   
             
             
               <13   
             
             
               ≤    1.0   
             
             
               200   
             
             
               <10   
             
             
               <70   
             
             
               38   
             
             
               >10