Paving Solutions Our Unique Chemistry

Winn Rock’s chemically active anhydrite crushed stone has many inherent advantages. Application costs are lower because the material “sets up” without the need for compaction. And the excellent absorption characteristics make it perfect for bridging and filling wet areas.

Should the need arise to remove the stone, it is easily accomplished. The material can then be reused at another location or for maintenance of existing locations.


Specific Gravity 2.87
Unit Weight Dry 108.8 LBS Per Cubic Foot
Unit Weight Wet 110.1 LBS Per Cubic Foot
Analysis 40.4 Calcium Oxide
Percentages  58.7 Sulphur Trioxide
0.4 Silicon Dioxide
0.1 Iron and Aluminum
0.4 Combined Moisture