A test of the flexural strength (modulus of rupture) of concrete from measurements on a standard unreinforced concrete beam.

The width of a light beam, measured in degrees, at the meeting point between two imaginary lines at which the

The angle between two directions (on opposite sides of the axis of a light beam, and in the same plane

In a concrete form for a beam, the side panels of the form.

1. In a vertical structural member, an opening to receive a beam. 2. An opening in the form for a

The segment of a concrete beam between a brace and a column or between braces.