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Engineering Classifications and Comparisons






Unconfirmed Compression Test

  • Two samples prepared... one cured for 7 days and one cured for 14 days.
  • 7-day Compressive Strength=79 psi
  • 14-day Compressive Strength = 166 psi
  • 47% Increase
  • Indicates the CaSO4 tends to gain strength with time.
  • Due to crystallization & cementation, CaSO4 tends to form self-bonding aggregates.

Material Comparisons

 
 GS-100
LIMESTONE

1. Unit Weight, pcf  
110-120

130

2. CBR, % 

100-150+

80-115

3. Self-Bonding Aggregates 

YES

NO

Summary

CaSO4 ~ 1.6 Ton/CY  vs.  Limestone ~ 1.375-1.9 Ton/CY
GS-100 is 10-15% Lighter than Limestone > More Volume for Less Weight!
GS-100 is Higher Load Bearing > 1" of GS-100 ~ 1.5" of Limestone!!

GS-100 is Less Expensive than Limestone > $$ Savings!!
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