本文用吸兰量法和强度法考察了五种膨润土的耐用性和钠基与钙基膨润土混合后的耐用性。结果表明,仁寿钠土的耐用性最好,信阳钙土的耐用性最差,混合膨润土的耐用性介于其组元的耐用性之间,但不是简单的混合比例关系。文章认为用吸兰量表示膨润土的耐用性,方法简便,结果可靠直观。 In this paper, the absorbency method and the intensity method were used to investigate the durability of five kinds of bentonite and the durability of the sodium-based bentonite mixed with calcium bentonite. The results showed that Renshou sodium had the best durability and Xinyang calcium had the poorest durability. The durability of mixed bentonite was between the durability of its components, but it was not a simple mixing ratio. The article holds that the absorption of bentonite by the amount of absorbed longevity, the method is simple, the results reliable and intuitive.