80年代初期,我国江西、云南、湖南,浙江等省相继开展了非烧结粘土砖的研究开发工作,到1986年,已有10余条生产线在施工,农房试点建筑已有上万米~2,专用成型机也有5～6种型号规格,形势发展方兴未艾。为了使非烧结粘土砖在我国稳步发展与逐步推广应用,1986年起由国家建材局技术发展司组织有关单位着手编制了“非烧结粘土砖技术条件”。现对“技术条件”中的几个问题作如下说明:1. 考虑到在保证农房耐久性的前提下,节约原材料,降低能耗和成本,增加了50号砖。2.通过大量试验证明,这种砖的力学性能较均一,饱水强度大于砖标号65%即可满 In the early 1980s, China’s Jiangxi, Yunnan, Hunan and Zhejiang provinces successively carried out the research and development of non-sintered clay bricks. By 1986, more than 10 production lines had been under construction, and the number of pilot farm buildings had reached 10,000 meters~2. Special-purpose molding machines also have 5 to 6 types of specifications, and the situation is in full swing. In order to make non-sintered clay bricks develop steadily in China and gradually promote their application, 1986 was organized by the Technology Development Department of the National Building Materials Bureau to compile the “non-sintered clay brick technical conditions”. Several issues in the “technical conditions” are described as follows: 1. Taking into account the premise of ensuring the durability of rural houses, saving raw materials, reducing energy consumption and costs, and increasing No. 50 bricks. 2. A large number of tests have proved that the mechanical properties of this brick are relatively uniform, and the full water strength is more than 65% of the brick number.