The Effect of Steel Fibers on the Interlocking Length between Reinforcement and Concrete and on Compressive Strength of Concrete

Table 1

Physical, chemical, and mechanical properties of the utilized cement.

Physical properties
Specific surface (Blaine)	3718 cm^2/g
Specific weight	3.15 g/cm^3
Socket start	167 minutes
End of socket	213 minutes
Mechanical properties
Compressive strength (2nd day)	27.9 MPa
Compressive strength (28th day)	58.9 MPa
Chemical properties
Cl−	0.01%
SO3	2.57%
Insoluble residue	0.78%
Ignition loss	1.45%