我国人均耕地面积较少,为减少粘土砖生产和与农争地的矛盾,陕西省户县煤渣制品厂利用煤渣、粉煤灰制造煤渣硅酸盐砖,逐年取得新的发展。该厂建于一九六九年,经不断改进质量,至 China’s per capita arable land is relatively small. To reduce the conflict between clay brick production and farmers’ disputes, Shaanxi Huxian Cinder Products Factory uses coal ash and fly ash to produce coal clinker silicate bricks, and has achieved new development year by year. The factory was built in 1969 and has been continuously improved in quality to