Machine-translated by Google. Questions are authored in English.
Top

Discussion

Ultra-high performance concrete achieves its very high strength largely through

  • A.adding a great deal more water to the mix than normal
  • B.omitting the cement entirely and using only inert fillers
  • C.a very low water content with optimised particle packing
  • D.the use of a very much coarser aggregate than is usual

Answer: C

Superplasticisers permit water to cement ratios far below the usual range, and fine powders fill the spaces between the cement grains. Steel or polymer fibres are generally added to give it some tensile capacity as well.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.