WATER PROOF CONSTRUCTION UNIT

摘要

The present application includes a void form unit for creating a void space between concrete structures and expansive soil. The unit includes a cellular structure surrounded by a paper based shell. The cellular structure is impervious to moisture. Together the cellular structure and the shell make a singular rigid member. The rigid member is configured to temporarily support concrete and gradually increase in flexure so as to flex with the movement of the expansive soil. The shell is configured to weaken over time from the regulated absorption of moisture. The flexure of the cellular structure configured to increase with the deterioration of the shell.

主权项

1. A water proof component void form for creating a void space between concrete structures and expansive soil, comprising:
a cellular structure formed from an impervious material so as to avoid the absorption of moisture; and a paper based shell configured to selectively wrap around and couple to the cellular structure so as to form a singular rigid member; wherein the structural strength of the singular rigid member is configured to weaken over time by the gradual absorption of moisture in the paper based shell, the weakening occurring from the contact with the setting concrete.