我国墙体材料在产品构成、总体工艺水平、产品质量与使用功能等方面均大大落后于工业发达国家。长期以来，实心粘土砖（红砖）在我国墙体材料产品构成中均占着“绝对统治”地位，中国被称为世界上红砖的“王国”。但生产与使用红砖存在着毁田取土、高能耗与严重污染环境等问题 China’s wall materials have lagged far behind industrial developed countries in terms of product composition, overall technological level, product quality, and use functions. For a long time, solid clay bricks (red bricks) have occupied an “absolutely dominant” position in the product structure of China’s wall materials, and China is known as the “kingdom” of red bricks in the world. However, the production and use of red bricks have problems such as deforestation, high energy consumption and serious environmental pollution.