磷石膏改性二灰稳定磷渣基层材料的研究  

Study on the Basecourse of Lime-fly Ash Stabilizing Phosphorous Slag Modified by Phosphogypsum

作　　者：周明凯[1] 查进[1] 沈卫国[2] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2004年第11期22-25,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金 (5 0 1780 5 8)

摘　　要：磷渣不宜用水泥或石灰单独进行稳定 ,用石灰粉煤灰稳定磷渣 ,能获得较高的强度 ,其 7d强度满足高速以及一级公路二灰稳定类基层强度要求。掺加 6 %的磷石膏 ,能够提高石灰粉煤灰稳定磷渣的强度。SEM观察发现 ,磷渣表面有明显的反应 。When phosphorous slag is used as the aggregate in base course, it is not suitable to be stabilized with cement or lime. However, the mixture of lime fly ash stabilizing phosphorous slag has high strength, which can be used as the base of expressway. With about 6% phosphogypsum, the strength of lime fly ash stabilizing phosphorous slag can be improved. The SEM defect that there had some reaction product on the surface of the phosphorous slag. It would benefit the strength of forming the road base material.

关 键 词：磷石膏 石灰粉煤灰 磷渣 基层材料 

分 类 号：X781.5[环境科学与工程—环境工程]