摘要
针对湖北荆门某石膏矿生产的半水石膏进行了不同粒度组成对其性能影响的研究。将原石膏粉分为+0.12 mm、-0.12+0.096 mm、-0.096+0.075 mm、-0.075+0.061 mm、-0.061 mm 5个级别,对不同粒级标准石膏模型的水膏比、抗折强度以及吸水率进行测试和比较,从而确定一个使模型石膏抗折强度和吸水率等性能最好的粒级分别是-0.061 mm、+0.12 mm,随粒度减小模型石膏水膏比增加,抗折强度提高,吸水率降低。
The paper had studied the influence of granularity on properties of β- hemihydrate gypsum which was produced by a gypsum mine company in Jingmen of Hubei province. The β- hemi- hydrate gypsum was divided to five kinds by particle size： ＋0.12mm, -0.12 ＋0. 096mm, -0. 096 ＋0. 075mm, -0. 075 ＋ 0. 061 mm, -0. 061 mm. And the water gypsum ratio, rupture strength and water absorption of gypsum were tested and compared with different particle size. At last the rule of the effect of particle size on properties of β- hemihydrate gypsum was found.
出处
《矿产保护与利用》
2012年第2期53-55,共3页
Conservation and Utilization of Mineral Resources
关键词
粒度组成
β-半水石膏
水膏比
抗折强度
granularity
β-hemihydrate gypsum
water gypsum ratio
rupture strength
