新型墙体材料在国家政策鼓励下 ,发展势头强劲。其产品规格、性能、外观质量已与国外产品接轨。以新型混凝土砌块为例 ,在短短的三五年时间内 ,全国各地已得到广泛推广使用 ,北京地区尤为突出。新型承重砌块以它特有的强度高、抗渗性能好、尺寸精确、颜色多样、施工速度快、使 With the encouragement of national policies, the new wall materials have enjoyed a strong momentum of development. Its product specifications, performance, appearance quality has been with foreign products. Taking the new type of concrete block as an example, in a short period of 35 years, it has been widely used all over the country, especially in Beijing. The new load-bearing block with its unique high strength, impermeability, size accuracy, color diversity, construction speed, so that