期刊论文

中文

山东商业职业技术学院学报

1671-4385

2024

24

01

111-116

2022CFA011:湖北省创新群众项目

本校为第一机构

以原状磷石膏、水泥、偏高岭土等为主要原料,磷酸或乙酸为激发剂,制备了酸激发磷石膏胶凝材料并探究其基本物理力学性能,研究了酸激发剂的种类及掺量对胶凝材料抗压性能和抗折性能的影响.研究结果表明:磷石膏、偏高岭土、水泥的质量比为 45 ∶ 15 ∶ 40,掺加量为 1-5%的磷酸或乙酸,制备的胶凝材料具有较好的抗压抗折性能;掺加量为4%的磷酸制备的胶凝材料28 天龄期的抗压强度达到了30.97MPa,抗折强度3.64 MPa;掺加量为4%的乙酸制备的胶凝材料28 天龄期的抗压强度19.03MPa,抗折强度达到了4.08 MPa;在自然养护条件下,磷酸激发的磷石膏胶凝材料的激发效果优于乙酸.

In this paper,the acid-stimulatedphosphogypsum cementing material was prepared with original phosphogypsum,cement and metakaolin as the main raw materials and phosphoric acid or acetic acid as the activator,and its basic physical and mechanical properties were investigated.The effects of the type and dosage of acid activator on the compressive and flexure properties of the cementing material were studied.The results show that the mass ratio of phosphogypsum,metakaolin and cement is 45 ∶ 15 ∶ 40,and the amount of 1-5%phosphoric acid or acetic ...