“十二五”期间预拌砂浆是发展的重点对象。本文首先介绍了预拌砂浆的优势、发展以及生产工艺特点;以天安门花岗岩步道砖用预拌砂浆为例,重点论述了砌筑砂浆和地砖胶粘剂的组成和性能特点,并经试验检测得出该预拌砂浆性能质量优良,能满足施工要求;最后阐述了花岗岩步道砖的施工过程,对推广预拌砂浆的应用具有重要的意义。 Ready-mixed mortar during the 12th Five-Year Plan period is the key target of development. In this paper, the advantages, development and production process characteristics of ready-mixed mortar are introduced firstly. Taking ready-mixed mortar for Tiananmen granite walkway brick as an example, the composition and performance characteristics of masonry mortar and floor tile adhesive are discussed emphatically. Ready-mixed mortar has excellent performance and can meet the construction requirements. Finally, the construction process of granite walkway brick is expounded, which is of great significance to promote the application of ready-mixed mortar.