1 前言进入二十一世纪 ,我国的砌块建筑已进入成熟发展阶段 ,建筑砌块作为砌块建筑的主导材料 ,在我国部分地区已达到生产量规模化、生产技术日趋成熟的历史水平。近两年我国一些大中城市 ,特别是北京地区在承重型混凝土小型空心砌块的应用方面 ,已有了长足的发展 ,随着国家建? 1 Foreword Entering the 21st century, China’s block construction has entered a mature stage of development. As the leading material of block construction, building blocks have reached the historic level of large-scale production and increasingly mature production technology in some areas of our country. In the past two years, some large and medium-sized cities in our country, especially Beijing, have made considerable progress in the application of small-sized, load-bearing concrete hollow blocks. With the construction of the country,