Keystone produces general purpose concrete masonry units (CMU’s) in three different aggregate blends. These products are Normal Weight Stone, Lightweight Keylite and Real-Lite CMUs to suit your building requirements.
Specifications | Stone | Keylite | Real-Lite Special Order |
Sizes by 8″ High & 16″ Long | 16″, 14″,12″, 10″, 8″, 6″, 4″, 3″, 2″ |
12″, 10″, 8″, 6″, 4″, 3″, 2″ |
16″, 12″, 10″. 8″ |
12″ x 8″ x 16″ Unit Weight | 54 Lbs | 44 lbs | 42 lbs |
ASTM Specification | C90 Normal Weight | C90 Lightweight | C90 Lightweight |
Minimum Net Compressive Strength | 1900PSI | 1900PSI | 1900PSI |
Stone CMUs
Are produced with sand, gravel and cement. These are used for all building applications.
Keylite CMUs
Are produced with a blend of locally produced lightweight aggregate, sand and cement.
Unit costs are similar to stone CMUs but because of their light weight they are less expensive to install.