沈凡;徐慢;王树林;季家友;王亮;

• 1:武汉工程大学材料科学与工程学院

摘要(Abstract)：

为了实现磷石膏的高附加值资源化利用,研究了Ca O掺量、细度与砂浆性能之间的关系,利用预处理后的磷石膏,对磷石膏基保温砂浆进行配合比设计,分析胶凝材料组成、轻质骨料掺量、外加剂种类等因素对磷石膏基保温砂浆性能的影响规律,制备磷石膏基保温砂浆,并测试其性能。结果表明:通过在磷石膏中加入Ca O及粉磨处理,可以提升磷石膏砂浆的强度,减少磷石膏中可溶性磷、氟对磷石膏砂浆的不良影响;磷石膏基保温砂浆的强度主要来源于磷石膏的硬化和水泥的水化;制备的磷石膏基保温砂浆的抗折强度达到2.1 MPa,抗压强度达到6.5 MPa,导热系数达到0.073 W/(m·K),满足保温砂浆的使用要求。

关键词(KeyWords)： 环境工程学;磷石膏;综合利用;保温砂浆;导热系数

Abstract:

Keywords:

基金项目(Foundation): 湖北省中低品位磷矿资源开发利用协同创新中心基金项目(P201101)

作者(Authors): 沈凡;徐慢;王树林;季家友;王亮;

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