管学茂, 张紫涵, 狄红丰,等.钛石膏不同方法制备的Ⅱ型硬石膏对硫铝酸盐水泥性能影响[J].河南理工大学学报（自然科学版）,doi:10.16186/j.cnki.1673-9787.2023020070.

GUAN X M, ZHANG Z H, DI H F, et al.Effects of Type-n anhydrite prepared by titanium gypsum with different methodson the properties of sulfate aluminium cement[J].Journal of Henan Polytechnic University(Natural Science) ,doi:10.16186/j.cnki.1673-9787.2023020070.

钛石膏不同方法制备的Ⅱ型硬石膏对硫铝酸盐水泥性能影响(网络首发)

管学茂, 张紫涵, 狄红丰, 刘松辉

河南理工大学 材料科学与工程学院，河南 焦作454000

摘要:为解决工业固废钛石膏资源再利用和硬石膏对硫铝酸盐水泥熟料性能影响，以钛石膏为 原料，采用加压水热法和酸浸法合成Ⅱ型硬石膏，研究不同方法合成的硬石膏对硫铝酸盐水泥 熟料性能的影响。试验表明：加压水热法和酸浸法合成的硬石膏，合成方法不同对粒径、形貌、 孔隙和表面积等微观性能影响不同；在硫铝酸盐水泥熟料中添加不同方法合成的硬石膏和天 然硬石膏，不同种类的硬石膏掺量15%时，硫铝酸盐水泥熟料的抗压强度均达到最大值；随着 养护时间的延长，硫铝酸盐水泥熟料的抗压强度均明显提高；与掺入天然硬石膏相比，掺入酸 浸法合成的硬石膏的抗压强度较低，但在硬石膏的相同掺量和相同水化时间的条件下，掺入加 压水热法合成的硬石膏，其硫铝酸盐水泥熟料的抗压强度均高于掺入其他两种硬石膏的熟料 强度。加压水热法合成的硬石膏在水泥熟料中应用有很大的前景，也是钛石膏再利用的一大 途径。

关键词:钛石膏;加压水热法;酸浸法; Ⅱ型硬石膏;硫铝酸盐水泥熟料;抗压强度

中图分类号：TQ177.375;TQ172.1

doi:10.16186/j.cnki.1673-9787.2023020070

基金项目: ：国家自然科学基金资助项目（U1905216）

收稿日期:2023-02-24

修回日期:2023-04-20

网络首发日期:2023-09-26

Effects of Type-II anhydrite prepared by titanium gypsum with different methodson the properties of sulfate aluminium cement（Online）

GUAN Xuemao, ZHANG Zihan, DI Hongfeng, LIU Songhui

School of Materials Science and Engineering，Henan Polytechnic University，Jiaozuo 454000，Henan，China

Abstract:Titanium gypsum is actually a kind of industrial solid waste.In order to better study its reuse problem and figure out the effects of anhydrite on the properties of the sulfate aluminium cement clinker，the titanium gypsum is taken as the raw material to prepare type II anhydrite by pressurized hydrothermal method and acid leaching method，which is then used to figure out the effects of anhydrite synthetized by different methods on the properties of the sulfate aluminium cement.The results show that the anhydrite synthesized by pressurized hydrothermal method and acid leaching method have different effects on particle size，morphology，pore and surface area and other microscopic properties.When mixing natural anhydrite and anhydrite synthesized by different methods into the sulfate aluminium cement clinker，if the mixing ratio ofvarious types of anhydrite reaches 15%，the compressive strengths of all the sulfate aluminium cement clinkers reach the maximum.Then with the extension of curing time，the compressive strengths of the sulfate aluminium cement clinkers increase obviously.Compared with situations of those mixed with natural anhydrite，the compressive strength of the sulfate aluminium cement clinker mixed with anhydrite synthesized by acid leaching method is lower.However，under the conditions of the same dosage of anhydrite and the same hydration time，its compressive strength is greater than those sulfate aluminium cement clinkers mixed with theother two types of anhydrites.Therefore，the application of anhydrite synthesized by pressurized hydrothermal method will be prosperous in the future.And it is also a major channel to achieve the reuse of titanium gypsum.

Key words:titanium gypsum;pressurized hydrothermal method;acid leaching method;type II anhydrite;sulphate aluminate cement clinker;compressive strength

CLC：TQ177.375;TQ172.1