This standard specifies the requirements for materials, dimensions, physical properties, and testing of precast concrete coping blocks. It covers various types of blocks (splayed, saddleback, half-round) used to cap and protect the top of masonry walls and parapets.
Precast Concrete Coping Blocks
Quick Reference Values
Maximum average water absorption10 % by mass
Minimum average transverse strength1.2 MPa
Minimum individual transverse strength1.0 MPa
Minimum cement content240 kg/m³
Tolerance on length and width±5 mm
Tolerance on height±3 mm
Practical Notes
Ensure blocks have a properly formed 'drip' or 'throat' groove underneath to prevent water from running down and staining the wall face.
Verify the finish of the blocks on delivery; they should be free from cracks and large blemishes that could affect durability and appearance.
Proper bedding mortar (typically 1:3 or 1:4 cement-sand) is crucial for creating watertight and strong joints between coping blocks.