摘要
粉煤灰是电厂的煤粉燃烧后所得到的具有火山灰特性的细微灰,其粒径范围大致在0.5μm~500μm,平均约为50μm~100μm。所谓火山灰特性是指一些硅酸盐和铝酸盐材料,即没有完全形成结晶相的玻璃体,经磨细后在一定温度下与Ca(OH)_(2)反应形成的水化物,具有能在空气中硬化,也能在水中硬化的特性。
Fly ash is a fine ash with pozzolanic characteristics obtained after the combustion of pulverized coal in power plants. The particle size range is roughly 0.5μm~500μm, with an average of about 50μm~100μm. The so-called pozzolanic properties refer to some silicate and aluminate materials, that is, glass bodies that have not completely formed a crystalline phase. After being finely ground, they can react with Ca(OH)_(2 )at a certain temperature to form hydrates, which can harden in air and water.
作者
孙登田
李建群
乔桢
SUN Deng-tian;LI Jian-qun;QIAO-Zhen
出处
《砖瓦》
2021年第12期49-50,共2页
Brick-tile
关键词
粉煤灰
粉煤灰砖
水化热反应
强度机理
fly ash
fly ash brick
hydration heat reaction
strength mechanism
