Weight Classifications and Aggregates

Weight Classifications and Aggregates Concrete Block has three classifications according to weight. Lightweight units weigh between 85 and 105 pounds per cubic foot. Medium Weight units weigh between 105 and 125 pounds per cubic foot and Normal Weight units weigh over 125 pounds per cubic foot and Normal Weight units weigh over 125 pound per cubic foot. Superlite Block currently manufactures only Medium Weight and Normal weight units. Medium Weight block will be lighter, have a higher fire rating, a higher R value and will be more effective for sound absorption (NRC rating). Normal Weight block will have a higher compressive strength, a tighter texture and will be more effective for sound transmission (STC rating).
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