Masonry, Brick & Block Testing Laboratories
Masonry testing covers units (brick, concrete block, stone), mortar and grout, and assemblages such as prisms. Unit tests verify strength and durability indicators; mortar analysis identifies composition of existing mortar for compatible repointing; prism tests measure assemblage strength for design verification.
What does it measure?
- Compressive strength of brick and block (ASTM C67 / C140)
- Absorption, saturation coefficient and efflorescence
- Mortar composition by petrographic and chemical analysis
- Masonry prism compressive strength
- Freeze-thaw durability indicators
When is it used?
- Qualifying units for new construction or restoration
- Matching mortar for historic repointing
- Investigating spalling, cracking or water ingress in masonry walls
- Verifying assemblage strength for structural design
Sample considerations
- For historic mortar analysis, sample from representative, uncontaminated joints and record location.
- State whether units are new production or salvaged — test quantities differ.
Laboratories with relevant capabilities
No directory profile currently documents this specific capability. Submit a request and we will look for laboratories that cover it.
Frequently asked questions
- Why analyse existing mortar before repointing?
- A replacement mortar that is harder or less vapour-permeable than the historic masonry can accelerate damage to the units. Composition analysis guides a compatible mix.
Confirm standard edition, jurisdiction and actual laboratory scope. Service references are not partnerships or endorsements.