Search U.S. government technical reports digitized or harvested by TRAIL.
Blasting granite with compressed air
The utilization of waste slate as a filler
A fatal quarry accident from falling rock
Slate dust in asphalt road-surface mixtures
Use of the churn drill at lime-plant quarries
Rock loading at lime-plant quarries
Quarry problems from the engineer's viewpoint
Drilling and broaching in slate quarries
Recent progress in slate technology