我国房建材料与国外发达国家相比,除了在产品质量,花色品种、劳动生产率和生产能耗等方面存在差距外,更主要的是体现在产品结构的构成不合理,低级产品所占的比例很大。下面主要把我国房建材料中几个类别的产品结构和国外一些发达国家加以比较。1.墙体材料我国墙体材料95%以上是实心粘土砖,各种新型墙体材料所占的比例还不到5%。目前我国粘土砖的产量已达到2900亿块/年,每年仅 Compared with foreign developed countries, China’s housing construction materials, in addition to product quality, variety, labor productivity and production energy consumption, there is a gap, the more important is reflected in the product structure is unreasonable, the proportion of low-grade products Great. The following mainly compares the product structure of several categories of housing construction materials in China with some developed countries abroad. 1. Wall Materials More than 95% of China’s wall materials are solid clay bricks, and the percentage of various new wall materials is less than 5%. At present, the output of clay bricks in China has reached 290 billion blocks per year.