影响粉煤灰烧结砖干坯强度因素的研究

Research on factors affecting the intensity of dry body of fly ash fired brick

研究了粉煤灰烧结砖中添加不同的粘结剂及其掺量、不同干燥工艺对干坯强度的影响。研究结果表明,以50℃为起始温度,以15℃/h的升温速度升至110℃,总干燥时间为24h的缓慢干燥工艺下,粉煤灰用量为60%,红页岩用量为40%,外加3%的S粘结剂和3%的X粘结剂,干坯强度可达2.0MPa。

Influence of different binders,different amount of binder and different drying process on the intensity of dry body of fly ash fired brick was studied. The results showed that：slow drying process in which the starting temperature is 50℃, 15℃/h warming up to 110℃ takes total drying time of 24h：the intensity of dry body can be up to 2.0 MPa with content of 60% fly ash, and 40% red shale,adding 3% S binder and 3% X binder.