Standards Development

Scope

This BSI Flex gives recommendations for the assessment and use of alternative binder systems (ABS) in concrete when building concrete structures otherwise in accordance with BS 8500 (all parts) and BS EN 1992 (all parts). This is part of a strategy for meeting the proposed net zero 2050 target.

This BSI Flex covers properties of ABS and provides recommendations on testing and monitoring to demonstrate conformity with the recommended performance for different applications.

The types of ABS covered include, but are not limited to, alkali-activated materials. It does not cover the cement types covered in BS EN 197, BS EN 15743, BS EN 14216 or BS EN 14647.

This BSI Flex is not applicable to any other methods of concrete carbon reducing measures.

This BSI Flex is intended for use by both ABS and ABS concrete manufacturers/producers. It might also be of interest to engineers, designers, end users, contractors and other stakeholders.

It is intended that:

a)    all the recommended performance tests are conducted on a representative grade of ABS concrete on behalf of the producers to demonstrate acceptable properties of the ABS; and

b)    project specific testing and conformance testing are conducted on behalf of the engineer/designer/concrete contractor to demonstrate suitability of the specific ABS concrete mixes and quality control.