Specifications & Physical Properties

 

All classes of the Makoro Brick range meet the requirements of the BOS:28:2000 Standard for Shape, Appearance, Texture, Colour and Strength..

Dimensions


Nominal Dimensions of Masonry Units.

Work Size ( mm )

Length

Width

Height

222

106

73

Class

Average tolerance of 32 units ( mm ) BOBS Spec

Length

Width

Height

FBS

3

 2

2

FBX

2.5

1.5

1.5

NFP

3.5

2

2

NFX

3.5

2

2


Warpage

  • FBX units.
    • The warpage of any individual unit does not exceed 5mm;and
    • In not more that three units does the warpage exceed 3mm.
  • FBS and Engineering units
    • The warpage of any individual unit does not exceed 5mm.

Soundness.

  • The soundness of all units fall within the requirements of the BOS 28: 2000 Standard. No pop-outs observed in testing.

Water Absorption.

  • Water absorption in both FBS and FBX comply with BOS28:2000 Requirement at less than 15%

Compressive Strength- BOS 28:2000 Spec.

Class Of Unit

Nominal Compressive Strength ( Ave. 12 units) BOBS Spec.

FBS

12MPa

FBX

17MPa

FBA

7MPa

NFP

10.5MPa

NFX

14MPa


Efflorescence Makoro Actual

Degree Of Efflorescence

Grade 

Class

Number out of 59 Units that exibit efflorescence

Degree of Efflorescence

Slight

Moderate

Heavy

Special

FBS

0

0

FBX

 0

 0

 0

FBA

 0

 0

 0

NFP

 0

 0

 0

 NFX

 0

 0

 Normal

FBS

 0

 0

 0

FBX

 0

 0

 0

FBA

 0

 0

 0

NFP

 0

 0

 0

 NFX

 0

 0

 0