建筑砌块在我国已有几十年的历史了 ,根据最新的统计 ,目前我国每年生产各类建筑砌块已超过50 0 0万ｍ3。在我国的南方主要以承重砌块为主 ,而在北方地区大量应用的则是用各种轻骨料生产的非承重砌块。大家都知道 ,承重砌块的标准尺寸为390ｍｍ× 190ｍｍ× 190ｍｍ ,单排双孔 Building blocks in our country has decades of history, according to the latest statistics, at present, China’s annual production of various types of building blocks has more than 50 million m3. In the south of our country, the main load-bearing blocks are mainly in the south, while the non-load-bearing blocks produced in various lightweight aggregates are widely used in the northern area. As we all know, the standard size of load-bearing block is 390mm × 190mm × 190mm, single row double hole