Concrete masonry unit, hollow, various sizes (90mm, 140mm, 190mm, 290mm wall thickness)
Hollow concrete masonry units (CMUs) are modular blocks used for structural and non-structural walls. Standard Australian units are 390 mm long x 190 mm high, with common series widths of 90, 140, 190, and 290 mm.
- Loadbearing walls (single and multi-storey)
- Non-loadbearing partitions
- Fire-rated wall assemblies
- Acoustic barriers
- Retaining walls (core-filled and reinforced)
- Commercial and industrial construction
- Residential construction
- Basement walls
- Boundary walls
- Privacy screens
Concrete masonry units were introduced to Australia in the early 20th century, with the Besser vibrating compaction system arriving in the 1920s. The term 'Besser Block' became synonymous with CMUs, though it remains Adbri Masonry's trademark. Australian Standards for masonry units were first published in 1974, with continuous updates reflecting improved manufacturing and testing methods. Modern Australian CMUs incorporate recycled materials and advanced admixtures for enhanced performance.
DISCLAIMER: This specification document is generated from the CLAD Materials Atlas Database. Information is for general guidance only and does not constitute professional engineering advice. Values are typical and may vary by batch, manufacturer, and production run. Verify suitability for specific project applications independently.