concrete board 混凝土板
- The high level underground water causes damages on the concrete board of the canal such as seep, freezing, sulfate erosion and swelling by swelled ground.
由于地下水位高,造成地下水对渠道混凝土板的渗透破坏、冻胀破坏、硫酸盐侵蚀破坏和膨胀土膨胀破坏。 - It improved on the conventional box-girder of prestressed concrete and was looked upon to combine with top-and-bottom concrete board , external tendons and corrugated steel webs.
它可以看成是由混凝土顶底板、体外预应力筋和波纹钢腹板三者构成的组合结构,是对传统的体外预应力混凝土箱梁的一种改进。 - In the reconstruction projects of cement concrete pavement covering with asphalt, the impact compaction machine can be used to destroy the concrete board rapidly, and reduce the reflection cracks.
利用冲击压实机对水泥混凝土路面进“行白改黑”,不仅可以快速破碎旧混凝土面板,破坏其板体结构,有效减少和缓解反射裂缝;
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