我省七十年代初开始使用325~＃小窑水泥修筑水泥混凝土路面时,认真采用干硬性混凝土按常规做法施工,虽也能达到设计强度,但施工难度甚大。后来于1980年试将真空吸水工艺用到小窑水泥混凝土路面工程上,这在国内尚属首创。先后在盱眙淮河大桥公路接线工程和宁杭线公路工程上使用,取得了明显的效果。1982年与有关单位协作,将网格式上吸垫真空吸水装置进行 In the early 1970s in our province, 325 ~ # kiln cement was used to construct cement concrete pavement. The construction of cement concrete pavement using seriously hardened concrete was conscientiously adopted. Although the design strength can be achieved, it is very difficult to construct. Later in 1980 try to vacuum suction process used in small kiln cement concrete pavement project, which is still the first in China. Successively in the Huaihe River Bridge Road junction project and Ninghang line highway project, and achieved significant results. In 1982 in collaboration with the relevant units, the net-suction pad vacuum suction device