| 20090200448 | CAST WALL WITH MODULAR UNITS - A cast wall system comprising at least two modular units, each having a front surface, a back surface, and opposing edge surfaces. A first edge surface (e.g., an upper edge surface) of one modular unit is positioned adjacent to a second edge surface (e.g., a lower edge surface) of another modular unit. A compression system (e.g., a threaded rod under tension) and coupled to elongated beams) provides a force to compress the first edge surface of the one modular unit toward the second edge surface of the other modular unit, and a hardened backing (e.g., concrete) is positioned on the back surface of the at least two modular units. Preferably, the first and second edge surfaces are ground in order to improve the surface contact between those two edge surfaces. When producing the cast wall, the hardened backing is preferably poured onto the back of the modular units. Prior to and during the pouring, it is preferred to support a first end of the one modular unit and a second end of the other modular unit on a common rail. In one embodiment, the common rail includes a base portion and an upright portion (e.g., a T-rail), and the step of supporting includes positioning the base portion on a support surface, and setting the first end of the one modular unit and the second end of the other modular unit on the upright portion. Preferably, the second end of the one modular unit and the first end of the other modular unit are supported on rails different than the common rail. | 08-13-2009 |
