An Oldcastle - Superlite Block

Net area compressive strength of concrete masonry units (psi) Net area compressive strength of masonry Type M or S mortar Type N mortar (psi)a 1250 1300 1000 1900 2150 1500 2800 3050 2000 3750 4050 2500 4800 5250 3000 For SI: 1 inch = 25.4 mm, 1 pund per square inch = 0.00689 MPa. a For units less than 4 inches in heigh, 85 percent of the ...