Concrete Block

Concrete blocks may be produced with hollow centers to reduce weight or improve insulation. The use of blockwork allows structures to be built in the traditional masonry style with layers (or courses) of staggered blocks. Blocks come in many sizes. With an R-Value of 1.11 the most common nominal size is 8 × 12 × 16 inches; the actual size is usually about 3/8 inch smaller to allow for mortar joints. Block cores are typically tapered so that the top surface of the block (as laid) has a greater surface on which to spread a mortar bed. There may be two, three or four cores, although two cores are the most common configuration. The presence of a core allows steel reinforcing to be inserted into the assembly, greatly increasing its strength.

A variety of specialized shapes exist to allow special construction features. U-shaped blocks or notches allow the construction of bond beams or lintel assemblies, using horizontal reinforcing grouted into place in the cavity. Blocks with a channel on the end, known as "jamb blocks", allow doors to be secured to wall assemblies. Blocks with grooved ends permit the construction of control joints, allowing a filler material to be anchored between the un-mortared block ends. Other features, such as radiused corners known as "bullnoses" may be incorporated.

 

Gray Solid Cap Concrete Block (4in. x 12in. x 16in.)

The 4in. x 12in. x 16in. Concrete Solid Block is most commonly used under lightweight structures. This product can be used as an A/C pad and to create a small patio or steps on a slope. Also used as a "capping" block on top of hollow block walls.

 

Gray Solid Cap Concrete Block (8in. x 12in. x 16in.)

The 8in. x 12in. x 16in. Concrete Solid Block is most commonly used under medium weight structures. This product can be used as an A/C pad and to create steps on a slope. Can also be used as corner/end blocks in wall construction.

 

Gray Standard Concrete Block (4in. x 12in. x 16in.)

Used most commonly in the construction of small, light, and interior divider walls.

 

Gray Standard Concrete Block (6in. x 12in. x 16in.)

Used most commonly in the construction of medium weight exterior walls.

 

Gray Standard Concrete Block (8in. x 12in. x 16in.)

Most common block used for all purpose wall construction, usually reinforced with rebar.

 

Gray Standard Concrete Block (10in. x 12in. x 16in.)

Used most commonly in the construction of heavy weight, heavy duty exterior walls.

 

Gray Standard Concrete Block (12in. x 12in. x 16in.)

Used most commonly in the construction of super heavy weight, super heavy duty exterior walls.

 

Gray Utility Knockout Concrete Block (8in. x 12in. x 16in.)

Most common block used for all purpose wall construction, with extra utility knockout feature on 1 or 2 of the webs.

 

Gray Door Jamb Concrete Block (8in. x 12in. x 16in.)

Most common block used for all purpose wall construction, with door jamb installation channel feature on one outer web.

 

Construction Block Specification Guide

There are a wider variety of blocks available, along with the blocks shown above. Please consult the Construction Block Specification Guide for all block types and specifications. [SEE CONSTRUCTION BLOCK SPECIFICATION GUIDE]