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Home Products Specification for Precast concrete splitter blocks
Specification for Precast concrete splitter blocks

01. TYPE OF BLOCKS:
Block is a masonry unit which when used in its normal aspect exceeds the length or width or height dimensions of a blocks. Bahrain Blocks is making two types of blocks:-

SOLID BLOCK which contains no formed holes or cavities other than those inherent in
     the material.

HOLLOW BLOCK which has one or more formed holes or cavities which pass through
     the block.


02. SIZE & DIMENSIONAL DEVIATION:
Following table gives the various sizes of blocks that are manufacturing here:-

Length Height Thickness (Width) (mm)

 400 mm  200 mm
100 150 200 250 300

Dimensional Deviation
The maximum dimensional deviation for blocks measured in accordance with the methods of test for Precast concrete blocks is as follows:-

Dimension Maximum dimensional deviation

Length +3mm, -5mm

Height +3mm, -5mm

Thickness (Width) +/- 2mm average   +/- 4mm at any individual point


03. COMPRESSIVE STRENGTH:
The value of the crushing strengths of ten blocks tested in accordance with the method of test for Precast concrete blocks.

Blocks are tested for compressive strength in accordance with the specification of BS 6073. Table below gives the crushing strength of 10 blocks per consignment of 100 blocks.

Type Minimum average Lowest Individual Block

5.0 N/mm2 5.0 N/mm2 4.0 N/mm2

7.0 N/mm2 7.0 N/mm2 5.0 N/mm2

10.0 N/mm2 10.0 N/mm2 8.0 N/mm2


04. EXTERNAL SHELL THICKNESS:
Table below give the minimum shell thickness of the blocks manufactured by Bahrain Blocks, that are in accordance with BS 6073.

Type Minimum Shell thickness (mm)

100x400x200 mm 30.00

150x400x200 mm 35.00

200x400x200 mm 35.00

250x400x200 mm 35.00

300x400x200 mm 35.00