粉煤灰对环境的污染日益严重，对其治理的有效措施之一就是开发高掺比的应用方法．高掺比的粉煤灰烧结多孔砖具有技术先进、工艺简单以及砖体容重低、强度高等特点．通过试验研究，该工艺中粉煤灰掺量达重量比50％（体积比65％）以上，以水玻璃为粘结剂，采用高压真空挤出成型工艺成型，烧成温度为1040～1080℃，产品质量完全符合国家标准（GB13544－92）．表7，参6 Fly ash on the environment pollution is increasingly serious, one of the effective measures for its control is to develop a high ratio of application methods. Highly doped fly ash sintered porous brick with advanced technology, simple technology and low bulk density, high strength characteristics. Through the experimental study, the fly ash content in the process reaches 50% by weight (65% by volume), using water glass as the binder and high-pressure vacuum extrusion molding process, the sintering temperature is 1040 ~ 1080 ℃ , Product quality in full compliance with national standards (GB13544-92). Table 7, reference 6