桂林理工大学学报2012，Vol.32Issue(4)：588-595,8.DOI:10.3969/j.issn.1674-9057.2012.04.026
苛性白云石与菱苦土复合镁质胶凝材料的制备及其应用
Preparation and Application of Magnesium Cement by Caustic Dolomite and Calcined Magnesite
摘要
Abstract
It is possible for caustic dolomite and calcined magnesite to constitute the composite magnesia cemen-titious material by mixing according to suitable proportion. The bending strength of standard thick cement of the composite magnesia cementitious material can reach 9. 3 MPa when cured for 24 h. Its curing 3 d compressive strength can come up to 74. 8 MPa. The cubic compressive strength of the sawdust magnesium oxychloride cement concrete, composed of the composite magnesia cement and the sawdust and hardened for 28 days, can come up to 23. 25 -25. 11 MPa. This outcome already come up to or exceed the GB 13041 - 1991 standard requirement. Composite magnesia cementitious material can be used to manufacture roofing ripple tile with light weight and high strength, and partition board with light weight and high strength. The research shows that increasing the fineness of the material to a certain extent can enhance the strength of the composite magnesium oxychloride cement, and that the coagulative time and stability of the composite magnesium oxychloride cement are up to standard.关键词
苛性白云石/菱苦土/复合/波纹瓦/隔墙型材Key words
caustic dolomite/calcined magnesite/composite/roofing ripple tile/partition board分类
化学化工引用本文复制引用
蒋为,蒋述兴..苛性白云石与菱苦土复合镁质胶凝材料的制备及其应用[J].桂林理工大学学报,2012,32(4):588-595,8.基金项目
广西自然科学基金项目(桂科基0639061) （桂科基0639061）
有色金属及材料加工新技术教育部重点实验室项目(10-046-01-13) （10-046-01-13）
