摘要
粉磨与特定激发剂的激发是炉渣胶凝材料技术的主要手段.研究表明:炼铅水淬炉渣的易磨性较差,在比表面积相近时,其粉磨单位电耗是高炉矿渣对应值的1.56倍;除铁炉渣的易磨性较未除铁炉渣的易磨性差,相同研磨时间内,除铁炉渣的比表面积普遍低于未除铁炉渣的对应值,在发生粉末结团与颗粒焊接现象前,除铁炉渣的极限比表面积为500m2/kg,未除铁炉的极限比表面积为550m2/kg;铁氧化物对炼铅水淬炉渣胶凝活性的影响在于其存在降低了炉渣胶凝材料中胶凝活性成份的含量,在激发剂足够多时,除铁炉渣的试块强度高于未除铁炉渣的试块强度,若激发剂数量不能满足需求,则除铁炉渣的试块强度低于未除铁炉渣的试块强度.
The major means to develop the slag cementitious materials were ground and activated them with the special excitants. Studies show that the grindability of the water-granulated lead slag is rather poor, and its unit grinding power consumption is 1.56 times higher than that of blast-furnace slag with a similar rate of specific area. The grindability of deferrization slag is worse than untreated one. Under the same grinding times, the rate of specific area with deferrization slag is generally lower than that of untreated one. Before the phenomena of intergranular conglobation and welding occun-ed, the critical specific areas of deferrization slag and untreated slag are 500m^2/kg and 550m^2/kg respectively. The existence of iron oxides resuhe in a poorer content of hydrated active constituents in the slags, which would represent an influence on the cementitious activity of water-granulated Lead Slag. Presence of enough activator in the standard briquettes result in the higher compression strengths of deferrization slag briquettes than that of untreated ones, and vice versa.
出处
《湖南科技大学学报（自然科学版）》
CAS
北大核心
2010年第1期106-110,共5页
Journal of Hunan University of Science And Technology：Natural Science Edition
基金
云南省省院省校合作基金项目(2007AD002)
关键词
炼铅水淬炉渣
铁氧化物
粉磨性能
胶凝活性
water-granulated lead slag
iron oxides
grinding efficiency
cementitious activity
