Home : Site Map : Contact us
 
Welcome To Lobatse Clay Works :: Index ::

 

 

 

 

 

Colour & Texture :
    Quick Price List
 
 
View Cart here

comic-01

 

comic-01


  Technical specfication


Physical Properties Of Clay Face Bricks

All clay facings are classified into one of the following three classifications to aid in the selection of the product which best suits the application.

FBX - Face Brick Extra

Durable face brick possessing the highest degree of size, shape and colour uniformity.

FBS - Face Brick Standard

These are clay face bricks that are durable,uniform in size and shape.

FBA - Face Brick Aesthetic

These are durable clay face bricks selected or produced for a highly individual aesthetic look derived from deliberate non-uniformity of shape and colour.

Work Size

Standard nominal work sizes are 222mm long x 106mm wide x 73mm high.

Efflorescence

Should range from nil to moderate, dependent upon the product.

Average Water Absorption

Depending on the product, will range from 5% to 15%. (24 hour soak test).

Initial Suction Rate

Facings generally fall in the range of 0,8kg/m2 min. to 2,0kg/m2 min., which is the optimum range to develop good brick mortar bonding.

Mass

The average mass of products will normally vary in the range of 2,3kg to 3,4kg per masonry unit.

 

BOS 28/ SABS 227 specification

   FBA  FBS  FBX
Tolerance on Work sizes*
(1) Individual units
(2) Average dimensions (of 32 units)
 

No requirements
No requirements
 (L)             (W)            (H)
7mm     4mm    4mm
3,5mm  2mm    2mm
 
 (L)             (W)            (H)
5mm     3mm     3mm
2,5mm  1,5mm  1,5mm
Warpage No requirements No individual unit to exceed 5mm warpage 90% of the units to have
warpages of 3mm or less.
No unit to exceed 5mm warpage.
Efflorescence Not more than 50% of the samples to display more than slight efflorescence when tested in accordance with SABS 227/BOS28 Not more than 15% of the samples to display more than slight efflorescence when tested in accordance with SABS 227/BOS28
Average Compressive Strengths Range from 17MPa to a practical upper limit of 70 MPa

    


 

Next

 




Copyright@2008.All Right Reserved Design and Developed by Weblogic