粉煤灰是煤粉在电厂炉内燃烧后的产物,属于一种人工火山灰材料。其特性是本身加水后不会产生强度,但在一定的细度状态下,经石灰(或水泥)的激发作用,可生成和水泥熟料相似的水化产物,具有胶结性,从而产生强度。 Fly ash is the product of pulverized coal combustion in a power plant and belongs to an artificial pozzolanic material. Its characteristic is that it does not produce the strength itself after adding water, but under the certain fineness state, the lime hydration (or cement) can generate hydration products similar to the cement clinker with the cementing property to produce strength.