New standard for aircrete blocks:
BSI has published European standard for aircrete ‘masonry units' (a combined term for bricksand blocks) being BS EN 771-4: 2003. Our factory production control systems have been assessed and certified by BBA for CE Marking purposes.

EN 771-4 is part of a series of product standards for different types of masonry unit.  For example, aggregate concrete blocks with Part 3 of EN 771. There is also a new suite of test methods, most covered by the EN 772 series of standards, as well as new product standards for mortars, lintels, wall-ties etc. Our own brand of ‘Celfix' thin layer mortar complieswith EN 998-2, H+H UK has the documentation in place to CE Mark the product.

EN 771-4 specifies the characteristics and performance requirements for aircrete masonryunits available throughout the CEN member countries. The concept of the declared value has been introduced and is the value claimed by H+H UK for the various properties referred to in the standard. There are other notable differences between the new and old standards, in particular the supporting test methods are different in respect of compressive strength. In addition, aircrete blocks can be designated either Category I or II. Celcon Blocks are manufactured to a category appropriate to their intended use.

It should be noted that the declared value of a performance characteristic given for a masonry unit conforming to one part of EN 771 cannot always be directly compared with the same performance characteristic for a masonry unit conforming to another part of EN 771. This is particularly the case for compressive strength, where the test conditions vary considerably and this results in major differences in apparent strength across different types of bricks and blocks.

To determine the products and applications we have available, follow the links on the Left hand panel or follow the Library link to download information on our products and services.

For more information please call 01732 886444 or email info@hhcelcon.co.uk.