Flexural strength of low density blockwork

The characteristic flexural strength of low density aircrete wallettes (2.8 and 2 N/mm2) incorporating both conventional and thin layer mortar is verified. The wallettes are tested in accordance with British and European standards. The flexural strength of aircrete wallettes is derived from the strength of small specimens tested to destruction under four-point loading. The strengths of the wallettes are high with impressive repeatability with the maximum strength being reached for thin layer wallettes within 7 days curing time. In general the strengths of both conventional mortar and thin layer mortar wallettes compare favourably to values reported in the standards.

► Flexural strength of low density aircrete wallettes determined.
► The wallettes are very strong with impressive repeatability.
► Thin layer mortar wallettes reached maximum strength within 7 days.
► Thin layer mortar wallettes stronger than conventional mortar.
► Failure mode of wallettes dependent on mortar type.