Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.

Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes an outwardly bounding reinforcement post for each of the side walls, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding posts. The barrier and the component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding posts.

Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes at least one inwardly bounding reinforcement post and at least one outwardly bounding reinforcement post, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding and inwardly bounding posts. The component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding and inwardly bounding posts.

Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes at least one inwardly bounding reinforcement post and at least one outwardly bounding reinforcement post, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding and inwardly bounding posts. The component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding and inwardly bounding posts.

Abstract: A system for retaining a flowable and curable building material to form a portion of a foundation includes side walls disposed in a predetermined configuration having a first side wall and a second side wall, and at least one component having an interior cavity disposed in one of the side walls. A bracket assembly includes at least one inwardly bounding reinforcement post and at least one outwardly bounding reinforcement post, a separator bar having a plurality of apertures sized to receive and retain each of the reinforcement posts at locations corresponding to nominal widths of the at least one component. A barrier is disposed between the outwardly bounding and inwardly bounding posts. The component in the side wall is retained in the foundation after the building material cures. The barrier prevents backfill from filling a volume between the outwardly bounding and inwardly bounding posts.

Abstract: A system is provided for retaining a flowable and curable building material to form a portion of a foundation of a structure of interest. A first and second side wall receive and retain the building material in a channel bound by the side walls. At least one of the side walls defines an interior cavity. A venting conduit is disposed within the structure of interest and coupled to the interior cavity to form a first passage. A bracket assembly retains the side walls in the predetermined configuration and includes two or more reinforcement posts and a separator bar. The separator bar has a first and second set of apertures proximate a first and second end that are sized to receive and retain a pair of the reinforcement posts at locations to establish a width of the components of the side walls and the channel being formed therebetween.

Abstract: A system is disclosed for retaining concrete to form a foundation of a structure. The system includes side walls that receives and retain the concrete and a bracket assembly that retains the side walls. The side walls include a first side wall and a second side wall, at least one of the first and second side walls is comprised of a component having an interior cavity. The bracket assembly includes reinforcement posts and a separator bar. The separator bar apertures disposed along its length. The apertures include a first set and a second set. The first set and the second set of apertures are sized to retain the reinforcement posts at locations corresponding to nominal widths of building materials that comprise the components to form a cross section of the foundation approximating one of a trapezoid or a combination of a trapezoid and a rectangle.

Abstract: A system is disclosed for retaining a concrete to form a foundation of a structure. The system includes side walls that receives and retain the concrete and a bracket assembly that retains the side walls. The side walls include a first side wall and a second side wall, at least one of the first and second side walls is comprised of a component having an interior cavity. The bracket assembly includes reinforcement posts and a separator bar. The separator bar has a plurality of apertures disposed along its length. The apertures include a first set and a second set. The first set and the second set of apertures are sized to retain the reinforcement posts at locations corresponding to nominal widths of the component and building materials that comprise the components to form a cross section of the foundation approximating one of a rectangle, a trapezoid or combinations thereof.

Abstract: A system is disclosed for retaining a concrete to form a foundation of a structure. The system includes side walls that receives and retain the concrete and a bracket assembly that retains the side walls. The side walls include a first side wall and a second side wall, at least one of the first and second side walls is comprised of a component having an interior cavity. The bracket assembly includes reinforcement posts and a separator bar. The separator bar has a plurality of apertures disposed along its length. The apertures include a first set and a second set. The first set and the second set of apertures are sized to retain the reinforcement posts at locations corresponding to nominal widths of the component and building materials that comprise the components to form a cross section of the foundation approximating one of a rectangle, a trapezoid or combinations thereof.

Abstract: The present invention 10 discloses a concrete form system for building foundations wherein two substantially parallel form walls 12 are constructed using a plurality of retainer sections that can mechanically interlock end-to-end 42, 44 when the retainer sections 14, 16, 18, 20 incorporate a throughbore 22 or butt-up end to end when there is no throughbore. Additionally the present invention provides a separator bar and reinforcement posts whereby the separator bar 24 serves as base for the retainer sections and as spacer between stacked retainer sections 14, 16, 18, 20 which can in cross-section have a circular, oval or polygonal shape and in one additional element a ribbed exterior portion 46, 48 for added strength and a substantially hollow interior 22 that forms a corrugated conduit retainer 20 that is conducive to providing ventilation for effective and efficient radon remediation from the structure being constructed.