Web structure for insulating concrete block

1. An insulating concrete block adapted to be interlocked with other insulating concrete blocks to form an insulating concrete form for casting concrete, the insulating concrete block comprising:

a first foam panel and a second foam panel arranged in a spaced apart, parallel relationship to form a concrete receiving cavity, each of the first panel and the second panel having a top end, a bottom end, a first end, and a second end; and

at least two web structures extending between the first foam panel and the second foam panel, each web structure includes a pair of elongated end plates joined to one another with at least one cross member having a longitudinal axis, one of the end plates being embedded in the first foam panel and the other being embedded in the second foam panel, each of the end plates having an outward facing, continuous even surface, an inward facing surface, and at least one attachment element, the attachment element including a block projecting inwardly a distance from the inner surface of the end plate and a portion of the end plate coextensive with the block so that the combination of the block and the coextensive portion of the end plate defines a thickened area on the end plate for receiving and holding a fastener inserted into the attachment element via the outward facing surface, the block being connected to and in axial alignment with the cross member, the block projecting laterally a distance beyond the periphery of the cross member.

2. The block of claim 1 wherein the end plates have a length and a width, wherein the end plates are oriented in the foam panels so that the length of the end plates extends in a top-to-bottom direction, and wherein the attachment elements extend the entire width of the end plates.

3. The block of claim 2 wherein the attachment elements are provided with at least two voids separated by a brace, the brace being axially aligned with the longitudinal axis of the cross member.

4. The block of claim 1 wherein each of the end plates has a pair of attachment elements and wherein the attachment elements are spaced on approximately eight inch intervals vertically.

5. The block of claim 4 wherein the end plates have a length and a width, wherein the end plates are oriented in the foam panels so that the length of the end plates extends in a top-to-bottom direction, and wherein each of the attachment elements extends the entire width of the end plates.

6. The block of claim 4 wherein the attachment elements are vertically aligned with like attachment elements of adjacently stacked panels and spaced on approximately eight inch intervals from the attachment elements of the adjacently stacked panels.

7. The block of claim 1 wherein the locations of the attachment elements are marked on an exterior face of each of the panels.

8. The block of claim 1 wherein the end plates are joined by a pair of cross members and wherein the cross members are generally symmetrically disposed above and below a central horizontal axis of the web structure.

9. The block of claim 8 wherein each of the panels has an exterior face that is provided with a series of vertical markings and horizontal markings to serve as guidelines for assisting an installer to cut the block to a desired size.

10. The block of claim 9 wherein the vertical markings are spaced at one inch intervals.

11. The block of claim 10 wherein the vertical markings are identified with numerals formed in the exterior surface of the panel.

12. The block of claim 9 wherein the horizontal markings include a center line, a pair of upper lines, and a pair of lower lines.

13. The block of claim 12 wherein horizontal lines are spaced every 2 inches from the center line.