A Tampa Florida Laboratory
Has Just returned some of our tests with the following results......
Comprehensive Strength= 7 days 1690 to 1790 PSI 28 days 2700 to 2900 PSI
Flexural Strength=7 days 450 PSI 28 days 640 to 660 PSI
Weight= Wet 102lbs/ft3 Oven Dry 82lbs/ft3
The thumbnails below are examples of some casting.