材料粉磨后与生石从和水混合所具有的凝结硬化性质称为活性。烟煤、无烟煤、石煤、泥煤以及矸石等各种可燃物燃烧后的灰渣称为燃料灰渣,由于其成份和燃烧温度不同,活性相差悬殊。关于燃料灰渣产生活性的原因,论说不一,以往对粉煤灰研究较多,概括起来有如下两种论点: The coagulation hardening property of the material after grinding and mixing with the water from the stone is called activity. The ash from the combustion of bituminous coal, anthracite, stone coal, peat, vermiculite, and other combustibles is called fuel ash. Because of its different composition and combustion temperature, the activity varies greatly. There are different opinions about the reasons for the activity of fuel ash residue generation. In the past, there have been many studies on fly ash. To sum up, there are two arguments: