Manufactured to bs en 771 3 they are available in standard and paint grade texture finish.
Concrete block wall density.
They are identified by their depth i e.
Additional wall properties are also impacted by wall weight although estimates of these properties are based on concrete density or aggregate type rather than directly on wall weight.
Solid concrete blocks 5 n mm2 hollow concrete blocks 2 to 4 n mm2 water absorption 10 to 15 by weight.
Concrete block cmu sizes concrete masonry units cmus are manufactured in a variety of sizes.
Solid concrete blocks 1500 to 2000kg m3 hollow concrete blocks 1000 to 1500kg m3 compressive strength.
Astm c 90 ref.
Thomas armstrong s insulite are the perfect all round medium density concrete blocks.
Aircrete blocks have a density in the range 400 900 kg m 3.
These concrete blocks are available in 3 6 n mm 4 2 n mm 7 3 n mm and 10 4 n mm strengths.
Concrete masonry hollow light weight blocks are manufactured with the lowest concrete density of 1100 kg m3 density and the block density at 963 kg m3 to 688 kg m3.
Concrete bricks have a density in the range 1900 2100 kg m 3 for commons facing and engineering quality and 1400 kg m 3 for lightweight bricks.
At emcon hollow lightweight blocks are available with a face dimensions of 400 x 200 mm l x h and 390 x 190 with varying thickness of 100 150 200 250 and 300 mm.
4 also discusses the various physical and design properties inﬂuenced by the.
1 concrete masonry units must be made with aggregates that meet either astm c.
For further information see the concrete block association or the autoclaved aerated concrete products association.
Tek 2 6 density related properties of concrete masonry assemblies ref.
For instance a 6 cmu is nominally 6 deep while a 10 cmu is nominally 10 deep.
The thickness of the wall they create.
Aggregate materials are used to manufacture concrete mason ry units.