ocr: Setting time, ASTM C191 Final approx. 30 min Slant shear bond strength, ASTM C928 - I - day 1000 psi (6.9 MPa) 7 - days 1500 psi (10.3 MPa) Shrinkage, ASTM C928 28 ) days in air >-0.15 28 - days In water <+0.15 Flexural strength, ASTM C78 4 hrs 500 psi (3.4 MPa) 1 day 650 psi (4.5 MPa) 7 days 700 psi (4.8 MPa) 28 days 750 psi (5.2 MPa) Compressive strength, ASTM C39 1 hr after set 2500 psi (17.2 MPa) 1 day 5000 psi (34.5 MPa) 7 days 6000 psi (41.3 MPa) 28 days 8000 psi (55.1 MPa)