%0 Journal Article
%T 碱激发电炉镍渣的反应产物性能<br>Properties of the reaction products of alkali-activated electric furnace nickel slag
%A 王强
%A 杨峻
%A 王登权
%J 清华大学学报（自然科学版）
%D 2018
%R 10.16511/j.cnki.qhdxxb.2018.22.028
%X 为研究碱激发电炉镍渣的反应产物性能，使用氢氧化钠和水玻璃两种激发剂对电炉镍渣进行激发，测定反应放热、砂浆抗压强度、产物形貌和结构。试验结果表明：5%掺量的氢氧化钠激发电炉镍渣砂浆抗压强度最大；水玻璃掺量10%时，激发电炉镍渣的最佳模数为0.5；碱度高有利于前期抗压强度的增加，而硅酸根离子则有利于后期抗压强度的增加；无论使用氢氧化钠还是水玻璃，碱激发电炉镍渣只生成非晶态产物，且氢氧化钠激发电炉镍渣生成的凝胶较水玻璃激发生成的更为致密；相较于原料，碱激发电炉镍渣生成了硅氧连接聚合度更高的产物，但无法形成新配位形式的铝氧连接结构。<br>Abstract：Electric furnace nickel slag was alkali-activated by sodium hydroxide and water glass to study the reaction product properties with measurements of reaction heat of the binder, the mortar compressive strength, and the morphology and structure of the reaction products. The results show that the mortar compressive strength is the greatest for a sodium hydroxide content of 5%. The optimum modulus of the alkali-activated electric furnace nickel slag is 0.5 for a water glass content of 10%. The high alkalinity improves the initial strength, while the silicate ions improve the later strength. The reaction products are amorphous regardless of the type of alkali used and are denser with sodium hydroxide. The reaction products have more polymerized silica-oxygen connections than the raw materials. No new aluminum-oxygen configurations are found.
%K 电炉镍渣
%K 碱激发
%K 反应产物
%K 抗压强度
%K 微观结构
%K &lt
%K br&gt
%K electric furnace nickel slag
%K alkali-activation
%K reaction product
%K compressive strength
%K microstructure
%U http://jst.tsinghuajournals.com/CN/Y2018/V58/I6/593