成都市每年建筑开工面积一般都超过300万米~2,需要墙体材料折合红砖7亿块左右。目前面临的问题,一是粘土资源枯竭,现有三个国营砖瓦厂生产能力只有1.7亿块,其中二个厂因缺土源即将被迫停产。而另一方面,郊区社队砖瓦盲目发展,企业多达202个,生产能力9亿块左右。粘土砖又供大于需。二是全市工业废渣年排50万吨以上,综合利用无几。热电厂年排灰渣28万吨 The annual start-up area of ​​Chengdu generally exceeds 3 million meters~2, and the wall material is required to be about 700 million red bricks. At present, the first problem is the depletion of clay resources. The existing capacity of the three state-owned brick and tile factories is only 170 million, of which two plants will be forced to stop production due to lack of soil resources. On the other hand, the suburban community bricks and tiles have developed blindly, with as many as 202 companies and a production capacity of about 900 million. Clay bricks provide more than needed. Second, the city’s industrial waste residue ranks above 500,000 tons per year, and there are few comprehensive utilizations. Thermal power plant annual discharge ash 280,000 tons