Meantime, the study of the modification of calciumbentonite was made.
同时，对钙基膨润土人工钠化进行了研究。
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The results show that sodium bentonite can greatly improve the drop strength and compressive strength of green pellets, while calciumbentonite could enhance shock temperature of green pellets.
Calcium chloride is added to reduce setting time, gypsum to increase setting time, barite and hematite to increase density, and bentonite and pozzolans to decrease density.