混凝土

• We buried large coil beneath each of the eight-foot concrete footings .
  我们把大线圈埋在每一个8英尺厚的混凝土底脚的下面。
• Mild steel has a high tensile strength, this being about 200 times that of concrete .
  软钢的抗张强度大，约为混凝土的200倍。
• Slow, careful curing of the concrete improves the hydration of the cement .
  混凝土的缓慢而精心的养护可以改善水泥的水化作用。
• One of the commonest foundations is that for a concrete column or a steel stanchion .
  最常见的地基之一是混凝土柱或钢支柱的地基。
• In 1969 a (51mm) bituminous concrete overlay was placed on the concrete deck .
  1969年在混凝土板上铺设了51mm厚的沥青混凝土铺装层。
• The roof is acid-resistant concrete and carries the acid distributor and its drive .
  顶部有耐酸混凝土，装有酸分部器及其传动部分。
• Where pipelines cross swamps, rivers, or lakes they may be encased in concrete .
  油管跨越沼泽地，河流、湖泊时，可以用混凝土管匣套起来。
• No concrete road surface is thinner than 10 cm since any smaller thickness might break up .
  混凝土路面不能薄于10厘米，因为再薄就可能断裂。
• Precast concrete requires careful attention to the joinery between precast elements .
  对于预制混凝土结构物，需要十分注意预制构件间的连接。
• The successful alternative was the cast-in-place segmental prestressed concrete box girder .
  最后采用的方案是分段现浇的预应力混凝土箱形梁。