近几年,天津市在墙改工作中积极发展混凝土砌块,迄今,全市有大小砌块厂(点)约200家,年生产砌块能力达30余万m~3。“八五”期间,全市多数框架结构都采用普通混凝土砌块、煤渣混凝土砌块及粘土陶粒混凝土砌块做围护墙和填充墙的材料,取得了很好的技术经济效果。 根据市墙改办的规划,“九五”期间要进一 In recent years, Tianjin has actively developed concrete blocks in the work of wall reform. So far, there are about 200 block factories (points) in the city, and the annual production capacity of blocks is more than 300,000 m3. During the “Eighth Five-Year Plan” period, most of the city’s frameworks used ordinary concrete blocks, cinder concrete blocks and clay ceramsite concrete blocks as the materials for the retaining walls and infill walls, and achieved very good technical and economic results. According to the plan for the reorganization of the city wall, it is necessary to enter a period during the Ninth Five-Year Plan period.