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Q: When bitumen is allowed to fill in the full depth of the stone layer, it is called :
  • A. half grout
  • B. full grout
  • C. full chipping
  • D. semi grout
Correct Answer: Option B - The elements of a cover layer can be bound with either cement grout or bitumen to provide increased stability. Bituminous grouting allows a creep flexibility of the grouted system. • Full Grouting– Here the voids are completely filled creating a homogeneous impermeable cover layer. • Surface Grouting– A certain quantity of grouting material is applied uniformly on the whole surface.
B. The elements of a cover layer can be bound with either cement grout or bitumen to provide increased stability. Bituminous grouting allows a creep flexibility of the grouted system. • Full Grouting– Here the voids are completely filled creating a homogeneous impermeable cover layer. • Surface Grouting– A certain quantity of grouting material is applied uniformly on the whole surface.

Explanations:

The elements of a cover layer can be bound with either cement grout or bitumen to provide increased stability. Bituminous grouting allows a creep flexibility of the grouted system. • Full Grouting– Here the voids are completely filled creating a homogeneous impermeable cover layer. • Surface Grouting– A certain quantity of grouting material is applied uniformly on the whole surface.