Your specific need will determine which part of the series is relevant to you.
To ensure compliance and accuracy, always purchase the official PDF from the BSI Group or an authorized reseller. Referencing the correct standard guarantees that your testing methodologies meet current regulatory and safety requirements.
It is important to ensure you are accessing the latest version, which at the time of writing is , which includes the latest amendments.
Always ensure you are using the latest version, including any active amendments, to ensure compliance with the most recent standards. bs en 7721 pdf
is the official British and European standard used to determine the compressive strength of masonry units , including clay bricks, aggregate concrete blocks, autoclaved aerated concrete (AAC), manufactured stone, and natural stone. The current active version of this harmonized standard is BS EN 772-1:2011+A1:2015 . It provides structural engineers, manufacturers, and testing laboratories with a unified methodology to evaluate whether materials can safely bear structural loads.
For concrete or stone units, faces can be ground flat using a mechanical grinder until they meet the strict planeness and parallelism tolerances.
The standard demands that the load be distributed uniformly across the surfaces of the masonry unit. Because raw bricks and blocks often feature surface irregularities or structural "frogs" (depressions), one of two preparation methods must be deployed: Your specific need will determine which part of
The standard is detailed and technical, but it revolves around a few critical procedures. If you are consulting the standard, you will need to pay attention to:
You can find the official document or previews through several providers: Official BSI Knowledge
The process is designed to find the maximum load a unit can withstand before failure. It is important to ensure you are accessing
It includes requirements for slip resistance and gap widths, ensuring that pedestrian heels, bicycle wheels, or mobility scooters do not become trapped.
The standard provides a uniform method for determining the compressive strength of masonry units. It ensures that materials—including clay, calcium silicate, aggregate concrete, and natural stone—meet the quality and performance requirements for safe construction.
The primary standard for determining the structural capacity of masonry products in the UK and Europe is . This document, titled Methods of test for masonry units. Determination of compressive strength , establishes the harmonized criteria used by engineers, manufacturers, and testing laboratories to calculate the load-bearing capacity of bricks and blocks.