一、目的和范围本章共有３条内容，着重解释：１．在住宅建筑工程的填充墙中，以前采用混凝土小砌块体系时主要用的是单排孔透底混凝土小砌块，由于其存在砂浆接触面小，抗剪强度低，埋管凿洞不易，两次装修难，以及隔声保温性能较差等原因，因此市建委从去年年底开始组织设计 First, the purpose and scope of this chapter a total of three articles, focusing on the explanation: 1. In the infill walls of residential construction, the small concrete blocks previously used in the construction of small concrete blocks are mainly composed of single row of perforated bottom concrete small blocks. Because of the small contact area of ​​mortar, low shear strength and difficult borehole drilling, two Secondary decoration difficult, and poor sound insulation properties and other reasons, so the City Construction Committee from the end of last year to organize the design