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磷石膏在水泥生产中的应用现状与展望

杨志强 陈晴 郭清春 党玉栋 李昕成 钱觉时

硅酸盐通报2016,Vol.35Issue(9):2860-2865,6.
硅酸盐通报2016,Vol.35Issue(9):2860-2865,6.

磷石膏在水泥生产中的应用现状与展望

Current Status and Prospects on Utilization of Phosphogypsum in Cement Production

杨志强 1陈晴 1郭清春 2党玉栋 3李昕成 2钱觉时3

作者信息

  • 1. 重庆大学材料科学与工程学院,重庆 400045
  • 2. 云南省建筑结构与新材料企业重点实验室,昆明 650223
  • 3. 云南省建筑科学研究院,昆明 650223
  • 折叠

摘要

Abstract

Phosphogypsum ( PG) is an industrial by-product generated from the manufacture of phosphoric acid by the wet process .Considering a huge amount of PG discharge , and a wide demand of cement in infrastructure construction , utilizing PG in cement manufacture is an encouraging approach .This paper firstly reviewed the current challenges of using PG in ordinary Portland cement ( OPC ) and calcium sulfoaluminate cement (SAC) manufacturing.Then, the application of using PG in SAC production is discussed as a new promising way to utilize PG .When using PG to produce SAC as one of raw materials , PG can render calcareous material for OPC and SAC production .But the negative impact of impurities in PG on properties of SAC can also be eliminated by the calcination processing . However , further researches are needed to increase the decomposition rate of PG . Sulfate-rich SAC cement can be produced by adding excess PG in raw materials , in that way the decomposition rate of PG can be increased .In addition , the impurities in PG can be used as functional component to modify the setting of SAC .

关键词

磷石膏/硫铝酸盐水泥/杂质/部分分解

Key words

phosphogypsum/calcium sulfoaluminate cement/impurity/partially decomposition

分类

建筑与水利

引用本文复制引用

杨志强,陈晴,郭清春,党玉栋,李昕成,钱觉时..磷石膏在水泥生产中的应用现状与展望[J].硅酸盐通报,2016,35(9):2860-2865,6.

基金项目

国家自然科学基金项目(U1202275);重庆市基础与前沿研究计划项目(cstc2013jj B50002);云南省建筑结构与新材料企业重点实验室2016年开放基金 ()

硅酸盐通报

OA北大核心CSCDCSTPCD

1001-1625

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