General requirements

043 PRODUCTS
0431 STONE FOR MASONRY

Stone obtained from quarries approved by the Engineer shall be hard & sound, free from vents, cracks, fissures, discoloration, or other defects that will adversely affect strength or appearance. Stone chips out of which shaped stone are to be produced shall not be less than 450mm average and 380mm individual length.

Stone for various masonry works shall be selected and shaped as follows: -

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  Stone for facing work shall generally be selected for consistency in grain, colour, and texture through out the work.
  

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  Stone for below grade work concealed from view shall be chiseled natural stone average size 450mm.
  
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  Stone for rough dressed exposed faces shall be fair chiseled and in average 450mm and individual not less than 380mm length.
  
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  Stone to receive other finish shall be chiseled natural stone in average 450mm and individual not less than 380mm.
  

The exposed face for dressed stone masonry shall be dressed to the sizes and textures as shown in drawings or directed by the Engineer.

0432 BRICKS

Bricks shall comply with the requirements of ES CD 4026 and ES CD 4001.

Bricks shall be well made and adequately burnt. Bricks shall be free from deleterious and injurious substances and particles of lime.
Bricks shall be selected for their consistency in dimensions, shapes, angles and strength.
Bricks exposed to weather shall in addition to the above requirement be selected for least absorption and high durability.
Exposed bricks for facing work shall in addition to the above requirements be selected for consistency in colour and texture.