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邯郸热电厂粉煤灰大部分采用湿排方式排出,颗粒粗,烧失量和含水量大,达不到GB1596—91中所规定的品质指标。已建起的电除尘设备排灰价格高,粒径也只能达到Ⅲ级灰的标准,难以在建筑工程中推广应用。我们对该厂湿灰,进行了磨细应用研究。现仅就其对砼强度的影响进行讨论。一、试验材料与方法采用原料包括:525号普通水泥和425号矿渣水泥;中细砂,细度模数为2.1～2.3;石子为5～30mm 碎石和湿排粉煤灰,该粉煤灰品质指标列入表1:
Most of the thermal power plant fly ash discharge using wet drainage method, coarse particles, loss of ignition and moisture content, can not meet the quality standards specified in GB1596-91. The dust evacuation equipment that has been established has high prices and the grain size can only meet the standard of Grade III ash, which is difficult to promote in construction projects. We applied the grinding application to the wet ash of the plant. We will only discuss the impact on the intensity of the confrontation. First, test materials and methods used raw materials include: No. 525 ordinary cement and No. 425 slag cement; fine sand, fineness modulus of 2.1 to 2.3; stone is 5 ~ 30mm gravel and wet fly ash, the powder coal Ash quality indicators are included in Table 1: