碳酸化养护钢渣和造纸污泥制备人造集料  

Preparation of Man-Made Aggregate with Carbonated Steel Slag and Paper Sludge

作　　者：吴昊泽[1] 丁亮[1] 刘梅[1] 常钧[1] 

机构地区：[1]济南大学材料科学与工程学院先进建筑材料工程研究中心,山东济南250022

出　　处：《粉煤灰》2011年第3期17-18,22,共3页Coal Ash China

基　　金：国家自然科学基金(50872043);国家"十一五"科技支撑计划(2006BAF02A24-6);山东省自然科学基金(Q2008F04);济南市科学技术发展计划重大专项(200808008)

摘　　要：通过对钢渣和造纸污泥进行碳酸化养护制备人造集料。与碳酸化养护前相比,碳酸化养护后的集料中有较多的1～2μm颗粒状碳酸钙生成,并且试样结构致密,孔隙率低。通过这种方法制得碳酸化增重率15.74%、体积密度2.24 g/cm3,平均峰值压力65.55 N的纯钢渣碳酸化集料和碳酸化增重率6.77%、体积密度1.54 g/cm3、平均峰值压力92.86 N的钢渣混合造纸污泥碳酸化集料。Steel slag and paper industrial waste sludge were carbonated to product man-made aggregate. Compared with the non- carbonated curing samples, some 1 - 2μm granular calcium carbonate were appeared in carbonated ones, and the structure of samples became more dense and porosity decreased. For carbonated aggregate with only steel slag, its carbonation weight rate was 15.74%, bulk density was 2.24 g/cm^3, the average peak stress was 65.55 N. For carbonated aggregate with steel slag plus paper sludge, its carbonation weight rate was 6.77%, bulk density was 1.54 g/cm^3, the average peak stress was 92.86 N.

关 键 词：铜渣 造纸污泥 碳酸化养护 人造集料 

分 类 号：X757[环境科学与工程—环境工程] X705