1 引言 从保护环境,减少污染的国策出发,传统的粘土砖已禁止使用,各种新型墙体材料已经大量进入市场,推广应用的速度很快。勿庸讳言,与秦砖汉瓦相比,新墙材毕竟历史还短,我们还没有完全掌握它在现代建筑工程中使用的规律,在设计、制造、使用中,新墙材都暴露出一些缺点。新墙材有很多种,有各自的特点,墙体的开裂形式、原因也 1 Introduction From the national policy of environmental protection and pollution reduction, the traditional clay brick has been banned, a variety of new wall materials have entered the market in large quantities, promote the application of fast. Needless to say, compared with Qin brick tile, the new wall after all, the history is still short, we have not fully grasp the rules used in modern construction projects, in the design, manufacture, use, the new wall materials are exposed Disadvantages. There are many new wall materials, have their own characteristics, the cracking of the wall form, the reason also