Patent ID: 6425212
Filing Date: 2002-07-30
Classification: E04B,E04C,G09F

Abstract:
A stress-tension hazard indicating device for indicating the presence of at least one prestressed and post-tensioned member within a mass of concrete comprising:a plate member having a front surface, a back surface, and a visible indication on the front surface, the visible indication signifying the presence of a tensioning member: at least one concrete penetrating projection, having a proximal end and a distal end, the proximal end being removably attached to the back surface of the plate member and the distal end having a flared portion, the concrete penetrating projection to be partially embedded within a concrete member from a time before the concrete member is fully cured, to a depth such that the removably attached plate member is flush with the surface of the concrete member; whereby, a concrete member is provided with a stress-tension hazard warning indicator from a time no later than the time at which the concrete member is fully cured.