Norwegian to English Tech/Engineering Construction / Civil Engineering blasting work and construction

No context other than a heading (document comprises various sections that have obviously been extracted from the overall main document to cut down the amount). This word simply appears on its own with a heading number before it.
Generally, the document concerns blasting, filling, road building, laying of cables, possibly constructing buildings later.

Heading above this one: Bøyestrekkfasthet
Heading below 'spaltestrekkfasthet': Elastisitetsmodul

Advice appreciated.